ACT5830

Rev PrB, 05-Mar-08 Advanced Product Information―All Information Subject to Change ACT5830 Twelve Channel PMU for Mobile Phones FEATURES • Multiple Patents Pending • 350mA, PWM Step-Down DC/DC Converter • Eight I2C-Programmable, Low Noise LDOs − Three Optimized for RF Section Power − Five Optimized for BB Section Power • Li+ Battery Charger with Integrated MOSFET − Charger Current Monitor Output (VICHG) − Charger ON/OFF Control Pin • Two N-channel Open Drain Switches • Minimal External Components • I2CTM Serial Interface − Configurable Operating Modes • AC-OK and RESET Outputs • 5×5mm, Thin-QFN (TQFN55-40) Package − Only 0.75mm Height − RoHS Compliant GENERAL DESCRIPTION The patent-pending ACT5830 is a complete, integrated power management solution that is ideal for mid-high and mobile phones. This device integrates a linear Li+ battery charger with an internal power MOSFET, a high efficiency 350mA DC/DC converter, eight low dropout linear regulators, a reset output, and two N-Channel open drain switches, and an I2C Serial Interface to achieve flexibility for programming LDO outputs and individual on/off control. The charger is a complete, thermally-regulated, stand-alone single-cell linear Li+ battery charger that incorporates an internal power MOSFET for constant-current/constant-voltage control. The charger includes a variety of value-added features, and it is programmable via the I2C-Interface to control charging current, termination voltage, along with safety features and operation modes. The ACT5830 is available in a compact 5mm x 5mm 40-pin Thin-QFN package that is just 0.75mm thin. APPLICATIONS • GSM or CDMA Mobile Phones SYSTEM BLOCK DIAGRAM CHG_IN nENCHG VICHG ACOK SCL SDA PWR_HOLD nON HF_PWR PWR_ON TX_EN RX_EN TCXO_EN nRST OD1 OD2 Open-Drain Drivers System Control Single Cell Li+ Battery Charger REG Step-Down DC/DC Low-Noise LDOs LDO1 LDO2 LDO3 LDO4 LDO5 LDO6 LDO7 LDO8 Single Cell Li+ Battery Charger 1.1V to 4.4V Up to 350mA 1.4V to 3.7V Up to 300mA 1.4V to 3.7V Up to 300mA 1.4V to 3.7V Up to 100mA 1.4V to 3.7V Up to 100mA 1.4V to 3.7V Up to 150mA 1.4V to 3.7V Up to 150mA 0.645V to 3.7V Up to 250mA 1.4V to 3.7V Up to 250mA Pb-free ACT5830 Active PMU TM ODI1 ODI2 Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -1- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 TABLE OF CONTENTS GENERAL INFORMATION ...................................................................................... P. 01 Functional Block Diagram ................................................................................................. p. 03 Ordering Information ......................................................................................................... p. 04 Pin Configuration .............................................................................................................. p. 04 Pin Descriptions ................................................................................................................ p. 05 Absolute Maximum Ratings .............................................................................................. p. 07 Rev PrB, 05-Mar-08 SYSTEM MANAGEMENT ........................................................................................ P. 08 Electrical Characteristics................................................................................................... p. 08 I2C Interface Electrical Characteristics .............................................................................. p. 09 System Management Register Descriptions ..................................................................... p. 10 Functional Descriptions..................................................................................................... p. 11 STEP-DOWN DC/DC CONVERTER ....................................................................... P. 13 Electrical Characteristics .................................................................................................. p. 13 Register Descriptions ........................................................................................................ p. 14 Typical Performance Characteristics ............................................................................... p. 16 Functional Description ...................................................................................................... p. 17 LOW-DROPOUT LINEAR REGULATORS .............................................................. P. 19 Register Descriptions ........................................................................................................ p. 19 Typical Performance Characteristics ................................................................................ p. 23 Functional Description ...................................................................................................... p. 24 LDO1................................................................................................................................. p. 25 LDO2................................................................................................................................. p. 26 LDO3................................................................................................................................. p. 27 LDO4................................................................................................................................. p. 28 LDO5................................................................................................................................. p. 29 LDO6................................................................................................................................. p. 30 LDO7................................................................................................................................. p. 31 LDO8................................................................................................................................. p. 32 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) ................................................. P. 33 Electrical Characteristics ................................................................................................... p. 33 Li+ Battery Charger Register Descriptions ........................................................................ p. 35 Typical Performance Characteristics ................................................................................ p. 37 Functional Description....................................................................................................... p. 38 PACKAGE INFORMATION ...................................................................................... P. 41 Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -2- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 FUNCTIONAL BLOCK DIAGRAM Active-Semi ACT5830 BAT Li+ Battery + CURRENT SENSE VOLTAGE SENSE PRECONDITION Rev PrB, 05-Mar-08 BODY AND VSYS CONTROL AC Adaptor 4.3V to 6V or USB CHG_IN VINUVLO 4.0V nENCHG nACOK Charge Control 2.9V BATID THERMAL REGULATION VICHG OUT1 nRST 110°C VP To Battery REG Step-Down DC/DC SW VBUCK VBUCK GP OUT1 Reset REF PWR_HOLD nON HF_PWR PWR_ON SDA SCL IN1 IN2 TCXO_EN BAT OUT1 RX_EN TX_EN Voltage Reference LDO1 OUT1 System Control LDO2 OUT2 OUT2 LDO3 To LDOs To LDOs LDO5 OUT3 OUT3 LDO4 OUT4 OUT4 OUT5 OUT5 LDO6 ODI1 OD1 ODI2 OD2 Open-Drain #2 LDO8 Open-Drain #1 LDO7 OUT6 OUT6 OUT7 OUT7 OUT8 OUT8 Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -3- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 ORDERING INFORMATION PART NUMBER VBUCK VLDO1 VLDO2 VLDO3 VLDO4 VLDO5 VLDO6 VLDO7 VLDO8 ICHARGER PACKAGE PINS ACT5830QJCGN-T 1.2V 3.0V 1.8V 3.0V 3.0V 3.0V 3.0V 1.3V 3.0V ACT5830QJCES-T 1.2V 1.8V 2.8V 2.8V 3.0V 3.3V 1.8V 3.0V 2.8V 0.45A TQFN55-40 40 0.45A TQFN55-40 40 TEMPERATURE RANGE -40°C to +85°C -40°C to +85°C Rev PrB, 05-Mar-08 : Output voltage options detailed in this table represent standard voltage options, and are available for samples or production orders. Additional output voltage options, as detailed in the Output Voltage Codes table, are available for production subject to minimum order quantities. Contact Active-Semi for more information regarding semi-custom output voltage combinations. : All Active-Semi components are RoHS Compliant and with Pb-free plating unless specified differently. The term Pb-free means semiconductor products that are in compliance with current RoHS (Restriction of Hazardous Substances) standards. PIN CONFIGURATION nENCHG nACOK VICHG BATID SW SW NC NC GP VP CHG_IN BAT REF nRST IN2 OUT4 OUT6 OUT8 OUT2 TX_EN VBUCK HF_PWR G nON IN1 ACT5830 OUT3 OUT5 OUT7 OUT1 RX_EN TCXO_EN 5×5mm QFN (TQFN55-40) SDA SCL ODI1 OD1 OD2 ODI2 PWR_ON PWR_HOLD NC Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -4- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 PIN DESCRIPTIONS PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Rev PrB, 05-Mar-08 NAME CHG_IN BAT REF nRST IN2 OUT4 OUT6 OUT8 OUT2 TX_EN TCXO_EN SDA SCL ODI1 OD1 OD2 ODI2 PWR_ON DESCRIPTION Battery Charge Supply Input. Connect a 1µF ceramic capacitor from CHG_IN to G. Battery Charger Output. Connect this pin directly to the battery anode (+ terminal), and to IN1 and IN2 pins. Bypass with 10µF ceramic capacitor to G. Reference Noise Bypass. Connect a 0.01µF ceramic capacitor from REF to G. This pin is discharged to G in shutdown. Active Low Reset Output. nRST asserts low for the reset timeout period of 65ms whenever the ACT5830 is first enabled. This output is internally connected to OUT1 via a 15kΩ pull-up resistor. Input supply to LDO2, LDO4, LDO6, and LDO8. Connect to BAT and IN1. LDO4 Output. Capable of delivering up to 100mA of output current. Output is discharged to ground with 1kΩ when disabled. LDO6 Output. Capable of delivering up to 150mA of output current. Output is discharged to ground with 1kΩ when disabled. LDO8 Output. Capable of delivering up to 250mA of output current. Output has high impedance when disabled. LDO2 Output. Capable of delivering up to 300mA of output current. Output has high impedance when disabled. LDO6 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low to disable. LDO4 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low to disable. Data Input for I2C Serial Interface. Data is read on the rising edge of the clock. Clock Input for I2C Serial Interface. Data is read on the rising edge of the clock. Digital Control for Open Drain N-channel Switch 1. Drive to a logic high to turn on the switch. Drive to a logic low to turn off the switch. N-channel Open–Drain Output 1. State of output controlled by ODI1. N-channel Open–Drain Output 2. State of output controlled by ODI2. Digital Control for Open Drain N-channel Switch 2. Drive to a logic high to turn on the switch. Drive to a logic low to turn off the switch. Push Button On/Off Input. Connect a push-button between this pin and BAT. There is an internal 200kΩ pull down resistor to G. See the System Startup & Shutdown section for more information. Power Hold Input for REG and LDO1. Drive PWR_HOLD to a logic high to complete the startup PWR_HOLD sequence. Drive the pin to a logic low to disable REG and LDO1. See the System Startup & Shutdown section for more information. NC RX_EN No Connect. Not internally connected. LDO5 Independent On/Off Control. Drive to a logic high for normal operation, and to a logic low to disable. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -5- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 PIN DESCRIPTIONS CONT’D PIN 22 23 24 25 26 27 28 29 30 31 32 33, 34 35 36 37 38 39 40 Rev PrB, 05-Mar-08 NAME OUT1 OUT7 OUT5 OUT3 IN1 nON G DESCRIPTION LDO1 Output. Capable of delivering up to 300mA of output current. Output has high impedance when disabled. LDO7 Output. Capable of delivering up to 250mA of output current. Output has high impedance when disabled. LDO5 Output. Capable of delivering up to 150mA of output current. Output is discharged to ground with 1kΩ when disabled. LDO3 Output. Capable of delivering up to 100mA of output current. Output has high impedance when disabled. Input Supply to LDO1, LDO3, LDO5, and LDO7. Connect to BAT and IN2. Push Button Active Low Open Drain Output. When PWR_ON is low, nON is open drain. When PWR_ON is high or when in shutdown, nON is asserted low. This output is internally connected to OUT1 via a 15kΩ pull-up resistor. Ground. Connect G and GP together at a single point place as close to the IC as possible. Hands Free Input. A high level indicates availability of hands free input. This pin is internally HF_PWR pulled down to G via a 200kΩ resistor. Connect to a 0.1µF capacitor to G to achieve TBDkV (typ) ESD protection. VBUCK NC VP SW GP NC nACOK nENCHG BATID VICHG Output Feedback Sense for REG. Connect this pin directly to the output node to connect the internal feedback network to the output voltage. No Connect. Not internally connected. Power Input for REG. Connect to BAT, IN1, and IN2. Bypass to GP with a high quality ceramic capacitor placed as close as possible to the IC. Switching Node Output for REG. Connect this pin to the switching end of the inductor. Power Ground for REG. Connect G and GP together at a single point place as close to the IC as possible. No Connect. Not internally connected. CHG_IN Active Low Status Output. nACOK is asserted low when VCHG_IN > 4.0V. Charge Enable Active Low Input. Drive low or leave floating to enable the charger. Drive high to disable the charger. This pin has an internal 200kΩ pull-down resistor. Battery ID pin to detect the presence of the battery. When the battery is present, the voltage at this pin is lower than 2V, otherwise, it is higher than 2V. Charge Current Monitor. The voltage at this pin is proportional to the charger current, with a gain of 2.47mV/mA. This output becomes high impedance in shutdown. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. -6- www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 ABSOLUTE MAXIMUM RATINGS PARAMETER CHG_IN to G t < 1ms and duty cycle 4V) is connected to the charger input (CHG_IN), or 3) a headset is connected, asserting HF_PWR high. The ACT5830 begins its system startup procedure by enabling REG, LDO2 and LDO3, then LDO1 are enabled when VBUCK or VOUT2 reaches 87% of its final value. nRST is asserted low when VOUT1 reaches 87% of its final value, holding the microprocessor in reset for a user-selectable reset period of 65msec. If (VBUCK or VOUT2) and VOUT1 are within 13% of their regulation voltages when the reset timer expires, the ACT5830 de-asserts nRST so that the microprocessor can begin its power up sequence. Once the power-up routine is successfully completed, the microprocessor asserts PWR_HOLD high to keep the ACT5830 enabled after the push-button is released by the user. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 11 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SYSTEM MANAGEMENT Figure 2: Startup and Shutdown Sequence CHG_DETECT OR HF_PWR Rev PrB, 05-Mar-08 PWR_ON (PUSH-BUTTON) REG, LDO2, LDO3 ENABLE VBUCK, OUT2, OUT3 LDO1 ENABLE OUT1 87% of VREG or VOUT2 87% of VOUT1 RESET TIMER ENABLE nRST TCXO_EN, RX_EN, TX_EN OUT4, OUT5, OUT6 I2C PROGRAMMING 65ms PWR_HOLD nON Open Drain Outputs The ACT5830 includes two n-channel open drain outputs (OD1 and OD2) that can be used for driving external loads such as WLEDs or a vibrator motor, as shown in the functional diagram. Each of the OD output are enabled when either it's respective ODIx pin in driven to a logic high. Thermal Overload Protection The ACT5830 integrates thermal overload protection circuitry to prevent damage resulting from excessive thermal stress that may be encountered under fault conditions, for example. This circuitry disables all regulators if the ACT5830 die temperature exceeds 160°C, and prevents the regulators from being enabled until the die temperature drops by 20°C (typ), after which a normal startup routine may commence. nACOK Output The ACT5830's nACOK output provides a logic-level indication of the status of the voltage at CHG_IN. nACOK is an open-drain output which sinks current whenever VCHG_IN > 4V. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 12 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER ELECTRICAL CHARACTERISTICS (VVP = 3.6V, TA = 25°C, unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER VP Operating Voltage Range VP UVLO Threshold VP UVLO Hysteresis Standby Supply Current Shutdown Supply Current Output Voltage Regulation Accuracy Line Regulation Load Regulation Current Limit Oscillator Frequency PMOS On-Resistance NMOS On-Resistance SW Leakage Current Power Good Threshold Minimum On-Time TEST CONDITIONS Input Voltage Rising Input Voltage Falling MIN 3.1 2.9 TYP 3 80 110 MAX 5.5 3.1 UNIT V V mV 200 1 +1.8% +1.8% µA µA V %/V %/mA A REG/ON[ ] = [0], VVP = 4.2V VNOM < 1.3V, IOUT = 10mA VNOM ≥ 1.3V, IOUT = 10mA VVP = Max(VNOM + 1V, 3.2V) to 5.5V IOUT = 10mA to 350mA 0.45 VREG ≥ 20% of VNOM VREG = 0V ISW = -100mA ISW = 100mA VVP = 5.5V, VSW = 5.5V or 0V 1.35 -2.4% -1.2% 0.1 VNOM VNOM 0.15 0.0017 0.6 1.6 530 0.45 0.3 1.85 MHz kHz 0.75 0.5 1 Ω Ω µA %VNOM ns 94 70 : VNOM refers to the nominal output voltage level for VREG as defined by the Ordering Information section. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 13 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER REGISTER DESCRIPTIONS Note: See Table 1 for default register settings. Rev PrB, 05-Mar-08 Table 2: Control Register Map ADDRESS 14h 15h 16h 17h DATA D7 R R R R D6 VRANGE R R R D5 R R R D4 R R R D3 VSET R R R D2 R R R D1 R R OK D0 MODE R ON R: Read-Only bits. Default Values May Vary. Table 3: Control Register Bit Descriptions ADDRESS 14h 14h 14h 15h 15h 16h 17h 17h 17h 17h ON OK MODE NAME VSET VRANGE BIT [5:0] [6] [7] [0] [7:1] [7:0] [0] [1] [2] [7:3] ACCESS R/W R/W R R/W R R R R R R FUNCTION REG Output Voltage Selection REG Voltage Range Selection 0 1 0 1 DESCRIPTION See Table 4 Min VOUT = 1.1V Min VOUT = 1.25V READ ONLY PWM/PFM Forced PWM READ ONLY READ ONLY 0 1 0 1 REG Disable REG Enable Output is not OK Output is OK READ ONLY READ ONLY Mode Selection REG Enable REG Power-OK Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 14 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER REGISTER DESCRIPTIONS CONT’D Table 4: REG/VSET[ ] Output Voltage Setting REG/VSET[5:4] REG/VSET [3:0] 00 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 (N/A): Not Available Rev PrB, 05-Mar-08 REG/VRANGE[ ] = [0] 01 N/A N/A 1.100 1.125 1.150 1.175 1.200 1.225 1.255 1.280 1.305 1.330 1.355 1.380 1.405 1.430 REG/VRANGE[ ] = [1] 11 1.860 1.890 1.915 1.940 1.965 1.990 2.015 2.040 2.065 2.090 2.115 2.140 2.165 2.190 2.200 2.245 10 1.455 1.480 1.505 1.530 1.555 1.585 1.610 1.635 1.660 1.685 1.710 1.735 1.760 1.785 1.810 1.835 00 1.250 1.300 1.350 1.400 1.450 1.500 1.550 1.600 1.650 1.700 1.750 1.800 1.850 1.900 1.950 2.000 01 2.050 2.100 2.150 2.200 2.250 2.300 2.350 2.400 2.450 2.500 2.550 2.600 2.650 2.700 2.750 2.800 10 2.850 2.900 2.950 3.000 3.050 3.100 3.150 3.200 3.250 3.300 3.350 3.400 3.450 3.500 3.550 3.600 11 3.650 3.700 3.750 3.800 3.850 3.900 3.950 4.000 4.050 4.100 4.150 4.200 4.250 4.300 4.350 4.400 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 15 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER TYPICAL PERFORMANCE CHARACTERISTICS (VINx = 3.6V, COUTx = 1µF, TA = 25°C unless otherwise specified.) REG Efficiency vs. Load 95 90 85 3.6V 4.0V 0.2 Rev PrB, 05-Mar-08 REG Load Regulation ACT5830-002 Load Regulation Error (%) ACT5830-001 0.0 -0.2 -0.4 -0.6 -0.8 4.2V Efficiency (%) 80 75 70 65 60 55 50 1 10 3.6V 100 1000 0 50 100 150 200 250 300 350 400 Output Current (mA) Output Current (mA) VREG Regulation Voltage 1.812 1.810 1.808 IOUT1 = 35mA 600 550 500 ACT5830-003 REG MOSFET Resistance ACT5830-004 VREG Voltage (V) 1.806 1.804 1.802 1.800 1.798 1.796 1.794 1.792 1.790 1.788 -40 -20 0 20 40 60 RDSON (mΩ) 450 400 350 300 250 200 150 100 50 0 PMOS NMOS 85 2.5 3.0 3.5 4.0 4.5 5.0 5.5 Temperature (°C) VP1 Voltage (V) REG Load Transient Response ACT5830-005 CH1 REG Load Transient Response ACT5830-006 CH1 CH2 0mA CH2 0mA CH1: VOUT1, 50mV/div (AC Coupled) CH2: IOUT1, 200mA/div TIME: 200µs/div CH1: VOUT1, 50mV/div (AC Coupled) CH2: IOUT1, 200mA/div TIME: 200µs/div Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 16 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER FUNCTIONAL DESCRIPTIONS General Description REG is a fixed-frequency, current-mode, synchronous PWM step-down converters that achieves a peak efficiency of up to 97%. REG is capable of supplying up to 350mA of output current and operates with a fixed frequency of 1.6MHz, minimizing noise in sensitive applications and allowing the use of small external components. REG is available with a variety of standard and custom output voltages, and may be software-controlled via the I2C interface by systems that require advanced power management functions. Rev PrB, 05-Mar-08 Program the output voltage via the I2C serial interface by writing to the REG/VSET[ ] register. Programmable Operating Mode By default, REG operates in fixed-frequency PWM mode at medium to heavy loads, then transitions to a proprietary power-saving mode at light loads in order to save power. In applications where low noise is critical, force fixed-frequency PWM operation across the entire load current range, at the expense of light-load efficiency, by setting the REG/MODE[ ] bit to [1]. 100% Duty Cycle Operation REG is capable of operating at up to 100% duty cycle. During 100% duty-cycle operation, the highside power MOSFET is held on continuously, providing a direct connection from the input to the output (through the inductor), ensuring the lowest possible dropout voltage in battery-powered applications. Power-OK REG features a power-OK status bit that can be read by the system microprocessor. If the output voltage is lower than the power-OK threshold, typically 6% below the programmed regulation voltage, REG/OK[ ] will clear to 0. Soft-Start REG includes internal soft-start circuitry, and enabled its output voltage tracks an internal 80µs softstart ramp so that it powers up in a monotonic manner that is independent of loading. Synchronous Rectification REG features an integrated n-channel synchronous rectifier, which maximizes efficiency and minimizes the total solution size and cost by eliminating the need for an external rectifier. Compensation REG utilizes current-mode control and a proprietary internal compensation scheme to simultaneously simplify external component selection and optimize transient performance over its full operating range. No compensation design is required, simply follow a few simple guidelines described below when choosing external components. Enabling and Disabling REG Enable/disable functionality is typically implemented as part of a controlled enable/disable scheme utilizing nMSTR and other system control features of the ACT5830. REG is automatically enabled whenever either of the following conditions are met: 1) HF_PWR is asserted high, or 2) PWR_ON is asserted high, or 3) PWR_HOLD is asserted high. When none of these conditions are true, or if REG/ON[ ] bit is set to [0], REG is disabled, and its quiescent supply current drops to less than 1µA. Input Capacitor Selection The input capacitor reduces peak currents and noise induced upon the voltage source. A 2.2µF ceramic input capacitor is recommended for most applications. Output Capacitor Selection For most applications, a 10µF ceramic output capacitor is recommended. Although REG was designed to take advantage of the benefits of ceramic capacitors, namely small size and very-low ESR, low-ESR tantalum capacitors can provide acceptable results as well. Programming the Output Voltage By default, REG powers up and regulates to its default output voltage. Once the system is enabled, REG’s output voltage may be programmed to a different value, typically in order to reduce the power consumption of a microprocessor in standby mode. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 17 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 STEP-DOWN DC/DC CONVERTER FUNCTIONAL DESCRIPTIONS CONT’D Inductor Selection REG utilizes current-mode control and a proprietary internal compensation scheme to simultaneously simplify external component selection and optimize transient performance over its full operating range. REG was optimized for operation with a 3.3µH inductor, although inductors in the 2.2µH to 4.7µH range can be used. Choose an inductor with a low DC-resistance, and avoid inductor saturation by choosing inductors with DC ratings that exceed the maximum output current of the application by at least 30%. Rev PrB, 05-Mar-08 PCB Layout Considerations High switching frequencies and large peak currents make PC board layout an important part of stepdown DC/DC converter design. A good design minimizes excessive EMI on the feedback paths and voltage gradients in the ground plane, both of which can result in instability or regulation errors. Stepdown DC/DC exhibits discontinuous input current, so the input capacitors should be placed as close as possible to the IC, and avoiding the use of vias if possible. The inductor, input filter capacitor, and output filter capacitor should be connected as close together as possible, with short, direct, and wide traces. The ground nodes for each regulator's power loop should be connected at a single point in a star-ground configuration, and this point should be connected to the backside ground plane with multiple vias. The output node should be connected to the VBUCK pin through the shortest possible route, while keeping sufficient distance from switching nodes to prevent noise injection. Finally, the exposed pad should be directly connected to the backside ground plane using multiple vias to achieve low electrical and thermal resistance. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 18 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS REGISTER DESCRIPTIONS Note: See Table 1 for default register settings. Rev PrB, 05-Mar-08 Table 5: LDO Control Register Map ADDRESS 07h 0Fh 13h 0Eh 12h 0Ch 10h 0Dh 11h DATA D7 R DIS1 DIS2 DIS7 DIS8 DIS3 DIS4 DIS5 DIS6 D6 VRANGE7 OK1 OK2 OK7 OK8 OK3 OK4 OK5 OK6 D5 ON1 ON2 ON7 ON8 ON3 ON4 ON5 ON6 D4 D3 VSET7 D2 VSET1 VSET2 D1 D0 R R R VSET8 VSET3 VSET4 VSET5 VSET6 R R Table 6: LDO Control Register Bit Descriptions ADDRESS 07h 07h 07h 0Fh 0Fh 0Fh 0Fh 13h 13h 13h 13h VSET1 ON1 OK1 DIS1 VSET2 ON2 OK2 DIS2 NAME VSET7 VRANGE7 BIT [5:0] [6] [7] [4:0] [5] [6] [7] [4:0] [5] [6] [7] ACCESS W/R W/R R W/R W/R R W/R W/R W/R R W/R FUNCTION LDO7 Output Voltage Selection REG Voltage Range Selection 0 1 DESCRIPTION See Table 8 Min VOUT = 0.645V Min VOUT = 1.25V READ ONLY See Table 7 0 1 0 1 0 1 0 1 0 1 0 1 LDO1 Disable LDO1 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled See Table 7 LDO2 Disable LDO2 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled LDO1 Output Voltage Selection LDO1 Enable LDO1 Power-OK LDO1 Output Discharge Enable LDO2 Output Voltage Selection LDO2 Enable LDO2 Power-OK LDO2 Output Discharge Enable Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 19 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS REGISTER DESCRIPTIONS CONT’D Table 6: LDO Control Register Bit Descriptions (Cont’d) ADDRESS 12h 12h 12h 12h 0Ch 0Ch 0Ch 0Ch 10h 10h 10h 10h 0Dh 0Dh Rev PrB, 05-Mar-08 NAME VSET8 ON8 OK8 DIS3 VSET3 ON3 OK3 DIS3 VSET4 ON4 OK4 DIS4 VSET5 ON5 BIT [4:0] [5] [6] [7] [4:0] [5] [6] [7] [4:0] [5] [6] [7] [4:0] [5] ACCESS W/R W/R R W/R W/R W/R R W/R W/R W/R R W/R W/R W/R FUNCTION LDO8 Output Voltage Selection LDO8 Enable LDO8 Power-OK LDO8 Output Discharge Enable LDO3 Output Voltage Selection LDO3 Enable LDO3 Power-Ok LDO3 Output Discharge Enable LDO4 Output Voltage Selection LDO4 Enable LDO4 Power-OK LDO4 Output Discharge Enable LDO5 Output Voltage Selection LDO5 Enable 0 1 0 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 DESCRIPTION See Table 7 LDO8 Disable LDO8 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled See Table 7 LDO3 Disable LDO3 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled See Table 7 LDO4 Disable LDO4 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled See Table 7 LDO5 Disable LDO5 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled 0Dh OK5 [6] R LDO5 Power-OK 1 0 1 0Dh DIS5 [7] W/R LDO5 Output Discharge Enable Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 20 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS REGISTER DESCRIPTIONS CONT’D Table 6: LDO Control Register Bit Descriptions (Cont’d) ADDRESS 11h 11h 11h 11h 0Eh 0Eh 0Eh 0Eh ON7 OK7 DIS7 Rev PrB, 05-Mar-08 NAME VSET6 ON6 OK6 DIS6 BIT [4:0] [5] [6] [7] [4:0] [5] [6] [7] ACCESS W/R W/R R W/R R W/R R W/R FUNCTION LDO6 Output Voltage Selection LDO6 Enable LDO6 Power-OK LDO6 Output Discharge Enable 0 1 0 1 0 1 0 1 0 1 0 1 DESCRIPTION See Table 7 LDO6 Disable LDO6 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled READ ONLY LDO7 Disable LDO7 Enable Output Out of Regulation Output In Regulation Output High-Z In Shutdown Output Discharge Enabled LDO7 Enable LDO7 Power-OK LDO7 Output Discharge Enable Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 21 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS REGISTER DESCRIPTIONS CONT’D Table 7: LDO1234568/VSET[ ] Output Voltage Settings LDOx/VSETx[2:0] 000 001 010 011 100 101 110 111 LDOx/VSETx[4:3] 00 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1 Rev PrB, 05-Mar-08 01 2.15 2.20 2.25 2.30 2.35 2.40 2.45 2.50 10 2.55 2.60 2.65 2.70 2.75 2.80 2.85 2.90 11 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 Table 8: LDO7/VSET[ ] Output Voltage Settings LDO7/VSET[5:4] LDO7/VSET [3:0] 00 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 (N/A): Not Available Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. LDO7/VRANGE[ ] = [0] 01 1.050 1.075 1.100 1.125 1.150 1.175 1.200 1.225 1.255 1.280 1.305 1.330 1.355 1.380 1.405 1.430 LDO7/VRANGE[ ] = [1] 11 1.860 1.890 1.915 1.940 1.965 1.990 2.015 2.040 2.065 2.090 2.115 2.140 2.165 2.190 2.200 2.245 10 1.455 1.480 1.505 1.530 1.555 1.585 1.610 1.635 1.660 1.685 1.710 1.735 1.760 1.785 1.810 1.835 00 1.250 1.300 1.350 1.400 1.450 1.500 1.550 1.600 1.650 1.700 1.750 1.800 1.850 1.900 1.950 2.000 01 2.050 2.100 2.150 2.200 2.250 2.300 2.350 2.400 2.450 2.500 2.550 2.600 2.650 2.700 2.750 2.800 10 2.850 2.900 2.950 3.000 3.050 3.100 3.150 3.200 3.250 3.300 3.350 3.400 3.450 3.500 3.550 3.600 11 3.650 3.700 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 0.645 0.670 0.695 0.720 0.745 0.770 0.795 0.820 0.845 0.870 0.895 0.920 0.950 0.975 1.000 1.025 - 22 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS TYPICAL PERFORMANCE CHARACTERISTICS (VINx = 3.6V, COUTx = 1µF, TA = 25°C unless otherwise specified.) Power Supply Rejection Ratio 80 70 60 50 40 30 20 0.1 1 10 100 COUT = 1µF ILOAD = 150mA LDO5 250 LDO5 LDO8 LDO1 ACT5830-007 Rev PrB, 05-Mar-08 Dropout Voltage vs. Load Current ACT5830-008 Dropout Voltage (mV) 200 LDO3 150 PSRR (dB) 100 50 0 0 50 100 150 200 250 300 350 Frequency (kHz) Load Current (mA) LDO Load Regulation ACT5830-009 0.0% LDO5 LDO8 LDO Enable ACT5830-010 CH1 -0.5% VOUT (V) LDO3 -1.0% LDO1 CH2 CH3 CH4 -1.5% 0 50 100 150 200 250 300 350 CH1: PWR_ON, 2V/div CH2: LDO1, 2V/div CH3: LDO2, 1V/div CH4: REG, 1V/div TIME: 200µs/div IOUT (mA) LDO Disable ACT5830-011 LDO Output Voltage Noise ACT5830-012 CH1 CH2 CH3 CH4 CH1 LDO1, 2 CH1: PWR_ON, 2V/div CH2: LDO1, 2V/div CH3: LDO2, 1V/div CH4: REG, 1V/div TIME: 2ms/div CH1: VOUTx, 1mV/div TIME: 10ms/div Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 23 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LOW-DROPOUT LINEAR REGULATORS FUNCTIONAL DESCRIPTIONS General Description The ACT5830 features eight high performance, lowdropout, low-noise and low quiescent current LDOs with high PSRR. Rev PrB, 05-Mar-08 Capacitor Selection The input capacitor reduces peak currents and noise at the voltage source. Connect a low ESR bulk capacitor (>1µF suggested) to the input. Select this bulk capacitor to meet the input ripple requirements and voltage rating, rather than capacitor size. Programming Output Voltages (VSET) All LDOs feature independently-programmable output voltages that are set via the I2C serial interface, increasing the ACT5830 flexibility while reducing total solution size and cost. Set the output voltage by writing to the LDOx/VSET[ _ ] register. See Table 7: LDO1234568/VSET[4:0] and Table 8: LDO7/VSET[_] Output Voltage Settings for a detailed description of voltage programming options. PCB Layout Considerations The ACT5830’s LDOs provide good DC, AC, and noise performance over a wide range of operating conditions, and are relatively insensitive to layout considerations. When designing a PCB, however, careful layout is necessary to prevent other circuitry from degrading LDO performance. A good design places input and output capacitors as close to the LDO inputs and output as possible, and utilizes a star-ground configuration for all regulators to prevent noise-coupling through ground. Output traces should be routed to avoid close proximity to noisy nodes, particularly the SW nodes of the DC/DC. REFBP is a filtered reference noise, and internally has a direct connection to the linear regulator controller. Any noise injected onto REFBP will directly affect the outputs of the linear regulators, and therefore special care should be taken to ensure that no noise is injected to the outputs via REFBP. As with the LDO output capacitors, the REFBP by pass capacitor should be placed as close to the IC as possible, with short, direct connections to the starground. Avoid the use of vias whenever possible. Noisy nodes, such as from the DC/DC, should be routed as far away from REFBP as possible. Enabling and Disabling LDOs For information regarding enabling and disabling the LDOs during the startup and shutdown sequence section. Once the startup routine is completed the remaining LDOs can be enabled/disabled via either the I2C interface or the TCXO_EN (LDO4), RX_EN (LDO5), TX_EN (LDO6), and PWR_HOLD (LDO1, LDO2, LDO3, LDO7, and LDO8). Reference Bypass Pin The ACT5830 contains a conference bypass pin which filters noise from the reference, providing a low-noise voltage reference to the LDOs. Bypass REF to G with a 0.01µF ceramic capacitor. Compensation and Stability The LDOs need an output capacitor for stability. This capacitor should be connected as close to the OUT and G pins as possible to maximize device’s performance. To ensure best performance for the device, the output capacitor should have a minimum capacitance of 1µF, and ESR value between 10mΩ and 500mΩ. High quality ceramic capacitors such as X7R and X5R dielectric types are strongly recommended. See the Capacitor Selection sections for more information. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 24 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO1 ELECTRICAL CHARACTERISTICS (VIN1 = 3.6V, COUT1 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN1 Input Rising VIN1 Input Falling TA = 25°C TA = -40°C to 85°C VIN1 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT1 = 1mA to 300mA f = 1kHz, IOUT1 = 300mA, COUT1 = 1µF f = 10kHz, IOUT1 = 300mA, COUT1 = 1µF LDO1 Enabled LDO1 Disabled IOUT1 = 150mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 60 50 20 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit Current Limit Short Circuit Foldback Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT1 µA 200 300 mV mA mA VOUT1 = 95% of Regulation Voltage VOUT1 = 0V 330 580 0.45 x ILIM 100 µs % µVRMS 20 µF VOUT1, Hysteresis = -1% COUT1 = 10µF, f = 10Hz to 100kHz 1 89 40 : VNOM refers to the nominal output voltage level for LDO1 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 25 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO2 ELECTRICAL CHARACTERISTICS (VIN2 = 3.6V, COUT2 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN2 Input Rising VIN2 Input Falling TA = 25°C TA = -40°C to 85°C VIN2 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT2 = 1mA to 300mA f = 1kHz, IOUT2 = 300mA, COUT2 = 1µF f = 10kHz, IOUT2 = 300mA, COUT2 = 1µF LDO2 Enabled LDO2 Disabled IOUT2 = 150mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 60 50 20 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit µA 200 300 mV mA mA VOUT2 = 95% of Regulation Voltage 330 580 0.45 x ILIM 100 Current Limit Short Circuit Foldback VOUT2 = 0V Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT2 VOUT2, Hysteresis = -1% COUT2 = 10µF, f = 10Hz to 100kHz 1 µs % µVRMS 20 µF 89 40 : VNOM refers to the nominal output voltage level for LDO2 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 26 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO3 ELECTRICAL CHARACTERISTICS (VIN1 = 3.6V, COUT3 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN1 Input Rising VIN1 Input Falling TA = 25°C TA = -40°C to 85°C VIN3 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT3 = 1mA to 100mA f = 1kHz, IOUT3 = 100mA, COUT3 = 1µF f = 10kHz, IOUT3 = 100mA, COUT3 = 1µF LDO3 Enabled LDO3 Disabled IOUT3 = 50mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 70 60 40 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit Current Limit Short Circuit Foldback Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT3 µA 200 100 mV mA mA VOUT3 = 95% of Regulation Voltage VOUT3 = 0V 115 180 0.45 x ILIM 100 µs % µVRMS 20 µF VOUT3, Hysteresis = -1% COUT3 = 10µF, f = 10Hz to 100kHz 1 89 40 : VNOM refers to the nominal output voltage level for LDO3 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 27 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO4 ELECTRICAL CHARACTERISTICS (VIN2 = 3.6V, COUT4 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN2 Input Rising VIN2 Input Falling TA = 25°C TA = -40°C to 85°C VIN4 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT4 = 1mA to 100mA f = 1kHz, IOUT4 = 100mA, COUT4 = 1µF f = 10kHz, IOUT4 = 100mA, COUT4 = 1µF LDO4 Enabled LDO4 Disabled IOUT4 = 50mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 70 60 40 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit Current Limit Short Circuit Foldback Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT4 µA 200 100 mV mA mA VOUT4 = 95% of Regulation Voltage VOUT4 = 0V 115 180 0.45 x ILIM 100 µs % µVRMS 20 µF VOUT4, Hysteresis = -1% COUT4 = 10µF, f = 10Hz to 100kHz 1 89 40 : VNOM refers to the nominal output voltage level for LDO4 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 28 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO5 ELECTRICAL CHARACTERISTICS (VIN1 = 3.6V, COUT5 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN1 Input Rising VIN1 Input Falling TA = 25°C TA = -40°C to 85°C VIN5 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT5 = 1mA to 150mA f = 1kHz, IOUT5 = 150mA, COUT5 = 1µF f = 10kHz, IOUT5 = 150mA, COUT5 = 1µF LDO5 Enabled LDO5 Disabled IOUT5 = 80mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 70 60 40 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit µA 200 150 mV mA mA VOUT5 = 95% of Regulation Voltage 165 260 0.45 x ILIM 100 Current Limit Short Circuit Foldback VOUT5 = 0V Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT5 VOUT5, Hysteresis = -1% COUT5 = 10µF, f = 10Hz to 100kHz 1 µs % µVRMS 20 µF 89 40 : VNOM refers to the nominal output voltage level for LDO5 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 29 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO6 ELECTRICAL CHARACTERISTICS (VIN2 = 3.6V, COUT6 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN2 Input Rising VIN2 Input Falling TA = 25°C TA = -40°C to 85°C VIN6 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT6 = 1mA to 150mA f = 1kHz, IOUT6 = 150mA, COUT6 = 1µF f = 10kHz, IOUT6 = 150mA, COUT6 = 1µF LDO6 Enabled LDO6 Disabled IOUT6 = 80mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 70 60 40 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit µA 200 150 mV mA mA VOUT6 = 95% of Regulation Voltage 165 260 0.45 x ILIM 100 Current Limit Short Circuit Foldback VOUT6 = 0V Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT6 VOUT6, Hysteresis = -1% COUT6 = 10µF, f = 10Hz to 100kHz 1 µs % µVRMS 20 µF 89 40 : VNOM refers to the nominal output voltage level for LDO6 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 30 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO7 ELECTRICAL CHARACTERISTICS (VIN1 = 3.6V, COUT7 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis TEST CONDITIONS VIN1 Input Rising VIN1 Input Falling TA = 25°C VNOM < 1.3V, IOUT = 10mA VNOM ≥ 1.3V, IOUT = 10mA VNOM < 1.3V, IOUT = 10mA VNOM ≥ 1.3V, IOUT = 10mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -2.4 -1.2 -5 -2.5 0 0 0 0 0 -0.004 60 50 20 0 100 2 2 3 3 mV %/mA dB % Output Voltage Accuracy TA = -40°C to 85°C Line Regulation Error Load Regulation Error Power Supply Rejection Ratio VIN7 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT7 = 1mA to 250mA f = 1kHz, IOUT7 = 250mA, COUT7 = 1µF f = 10kHz, IOUT7 = 250mA, COUT7 = 1µF LDO7 Enabled LDO7 Disabled IOUT7 = 100mA Supply Current per Output Dropout Voltage2 Output Current Current Limit Current Limit Short Circuit Foldback Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT7 µA 200 250 mV mA mA VOUT7 = 95% of Regulation Voltage VOUT7 = 0V 275 410 0.45 x ILIM 100 µs % µVRMS 20 µF VOUT7, Hysteresis = -1% COUT7 = 10µF, f = 10Hz to 100kHz 1 89 40 : VNOM refers to the nominal output voltage level for LDO7 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 31 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 LDO8 ELECTRICAL CHARACTERISTICS (VIN2 = 3.6V, COUT8 = 1µF, TA = 25°C unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER Input Supply Range Input Under Voltage Lockout UVLO Hysteresis Output Voltage Accuracy Line Regulation Error Load Regulation Error Power Supply Rejection Ratio TEST CONDITIONS VIN2 Input Rising VIN2 Input Falling TA = 25°C TA = -40°C to 85°C VIN8 = Max (VNOM1 + 0.5V, 3.1V) to 5.5V IOUT8 = 1mA to 250mA f = 1kHz, IOUT8 = 250mA, COUT8 = 1µF f = 10kHz, IOUT8 = 250mA, COUT8 = 1µF LDO8 Enabled LDO8 Disabled IOUT8 = 100mA MIN 3.1 2.9 TYP 3 0.1 MAX 5.5 3.1 UNIT V V V -1.2 -2.5 0 0 0 -0.004 60 50 20 0 100 2 3 % mV %/mA dB Supply Current per Output Dropout Voltage2 Output Current Current Limit Current Limit Short Circuit Foldback Internal Soft-Start Power Good Flag High Threshold Output Noise Stable COUT8 µA 200 250 mV mA mA VOUT8 = 95% of Regulation Voltage VOUT8 = 0V 275 410 0.45 x ILIM 100 µs % µVRMS 20 µF VOUT8, Hysteresis = -1% COUT8 = 10µF, f = 10Hz to 100kHz 1 89 40 : VNOM refers to the nominal output voltage level for LDO8 as defined by the Ordering Information section. 2: Dropout Voltage is defined as the different voltage between input and output when the output voltage drops 100mV below the regulation voltage at 1V differential voltage. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 32 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) ELECTRICAL CHARACTERISTICS (VCHG_IN = 5V, VBAT = 3.6V, VSET[ ] = [0101], ISET[ ] = [0101], TA = 25°C, unless otherwise specified.) Rev PrB, 05-Mar-08 PARAMETER CHG_IN Operating Range UVLO Threshold UVLO Hysteresis Battery Termination Voltage Line Regulation PMOS On Resistance Charge Current VICHG Voltage Precondition Charge Current Precondition Threshold Voltage Precondition Threshold Hysteresis End-of-Charge Current Threshold End-of-Charge Qualification Period Charge Restart Threshold BATID High Input Voltage BATID Low Input Voltage BATID Leakage Current Thermal Regulation Threshold BAT Reserve Leakage Current TEST CONDITIONS CHG_IN Voltage Rising CHG_IN Voltage Falling MIN 4.2 3.75 TYP 4 500 MAX 6 4.25 UNIT V V mV 4.179 VCHG_IN = 4.5V to 5.5V, IBAT = 10mA 4.200 0.2 0.3 4.221 V %/V 0.5 550 Ω mA mV/mA VBAT = 3.8V VVICHG /IBAT VBAT = 2.8V VBAT Voltage Rising VBAT Voltage Falling VBAT = 4.1V 450 500 2.3 35 2.75 50 2.9 150 50 32 65 3.0 mA V mV mA ms mV V VSET[ ] - VBAT, VBAT Falling VBATID Voltage Rising VBATID Voltage Falling VCHG_IN = 4.5V 2.5 200 2 1 105 V µA °C SLEEP, SUSPEND, or TIMER-FAULT state VnENCHG > 1.4V 0.4 65 200 0.8 60 No timer 30 45 3.0 No timer 1.5 2.2 5 100 500 1.2 µA µA µA mA min CHG_IN Supply Current SLEEP, SUSPEND, or TIMER-FAULT state PRECONDITION, FAST-CHARGE, or TOP-OFF state TIMOSET[ ] = [00] Precondition Timeout Period TIMOSET[ ] = [01] TIMOSET[ ] = [10] TIMOSET[ ] = [11] TIMOSET[ ] = [00] min min hr Total Charging Timeout Period TIMOSET[ ] = [01] TIMOSET[ ] = [10] TIMOSET[ ] = [11] hr hr Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 33 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) Figure 3: Battery Charger Algorithm Rev PrB, 05-Mar-08 Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 34 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) Li+ BATTERY CHARGER REGISTER DESCRIPTIONS Note: See Table 1 for default register settings. Rev PrB, 05-Mar-08 Table 8: Battery Charger (CHGR) Control Register Map ADDRESS 08h 09h 0Ah 0Bh R R TIMOSET R R DATA D7 D6 ISET R R R BATFLT R R D5 D4 D3 R TIMOFLT R R D2 R R R D1 VSET CHGRSTAT R CHGROK D0 VINPOK R SUSCHG R: Read-Only bits. Default Values May Vary. Table 9: Battery Charger (CHGR) Control Register Bit Descriptions ADDRESS 08h 08h 08h 09h 09h 09h 09h 09h 09h 09h 0Ah 0Bh 0Bh 0Bh Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. NAME VSET BIT [2:0] [3] ACCESS R/W R R/W R R R R R R R/W R R/W R R FUNCTION Charge Termination Voltage Selection Maximum Charge Current Selection Input Supply Power-OK Charging Status 0 1 0 1 0 1 0 1 DESCRIPTION See Table 11 READ ONLY See Table 10 Input Power is not OK Input Power is OK Not Charging Charging READ ONLY No Timeout Fault Timeout Fault Battery Not Removed Battery Removed READ ONLY See Table 12 READ ONLY 0 1 0 1 Charging Enabled Charging Disabled Charging Error Occurred Charging OK READ ONLY ISET VINPOK CHGRSTAT [7:4] [0] [1] [2] TIMOFLT BATFLT [3] [4] [5] Timeout Fault Battery Removed Fault TIMOSET [7:6] [7:0] Charge Timeout Select SUSCHG CHGROK [0] [1] [7:2] Suspend Charging Charge Status - 35 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) Li+ BATTERY CHARGE REGISTER DESCRIPTIONS CONT’D Table 10: CHGR Charge Current Settings CHGR/ISET[3:0] 0000 0001 0010 0011 0100 0101 0110 0111 1000 1001 1010 1011 1100 1101 1110 1111 Rev PrB, 05-Mar-08 Table 11: Charge Termination Voltage Settings CHGR/VSET[3:0] 000 001 010 011 100 101 110 111 FAST CHARGE CURRENT SETTINGS (mA) 100 300 350 400 450 (default) 500 550 600 650 700 750 800 850 900 950 1000 CHARGE TERMINATION VOLTAGE (V) 4.10 4.12 4.14 4.16 4.18 4.20 (default) 4.22 4.24 Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 36 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) TYPICAL PERFORMANCE CHARACTERISTICS (COUTx = 1µF X7R, VBAT = VINx = VOUTx + 0.5V, TA = 25°C, unless otherwise specified.) Rev PrB, 05-Mar-08 Battery Termination Voltage vs. Temperature 4.31 4.28 4.25 2250 2000 1750 ACT5830-013 VICHG Voltage vs. IBAT ACT5830-014 4.22 4.19 4.16 4.13 4.10 -40 -20 0 20 40 60 ISET[3:0] = [1111] 80 100 120 VVICHG (mV) 1500 1250 1000 750 500 250 0 0 200 400 600 VCHG_IN = 5V VBATID = 2.5V ISET[3:0] = [1111] 800 VBAT (V) 1000 Temperature (°C) IBAT (mA) Precondition Threshold Voltage vs. Temperature 3.1 325 320 315 ACT5830-015 MOSFET Resistance vs. Temperature ACT5830-016 3.0 VPRECONDITION (V) 2.9 RDSON (mΩ) VBAT Rising 310 305 300 295 290 285 2.8 VBAT Falling 2.7 2.6 -40 -20 0 20 40 60 80 100 120 280 -40 -20 0 20 40 60 80 100 120 Temperature (°C) Temperature (°C) BAT Reverse Leakage Current vs. Temperature 5 ACT5830-017 4 IBAT (µA) 3 2 -40 -20 0 20 40 VCHG_IN = 0V or Floating VBAT = 5V 60 80 100 120 Temperature (°C) Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 37 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) FUNCTIONAL DESCRIPTIONS General Description The ACT5830's internal battery charger is an intelligent, stand-alone CC/CV (constantcurrent/constant-voltage), linear-mode single-cell charger for Lithium-based cell-chemistries. This device incorporates current and voltage sense circuitry, an internal power MOSFET, thermalregulation circuitry, a complete state-machine to implement charge safety features, and circuitry that eliminates the reverse-blocking diode required by conventional charger designs. The ACT5830 battery charger operates independently of the regulators, and is automatically enabled whenever a valid input supply is available. The ACT5830's battery charger features softwareprogrammable fast-charge current, charge termination voltage, charge safety timeout period. The ACT5830's battery charger can accept input supplies in the 4.3V to 6V range, making it compatible with lower-voltage inputs such as 5-6V wallcubes and USB ports. The battery charger, along with LDO1, LDO2, and LDO3, is enabled and initiates a charging cycle whenever an input supply is present. Rev PrB, 05-Mar-08 CC/CV Regulation Loop At the core of the ACT5830's battery charger is a CC/CV regulation loop, which regulates either current or voltage as necessary to ensure fast and safe charging of the battery. In a normal charge cycle, this loop regulates the current to the value set in the CHGR/ISET register. Charging continues at this current until the battery cell voltage reaches the the programmed termination voltage, as defined in the CHGR/VSET register. At this point the CV loop takes over, and charge current is allowed to decrease as necessary to maintain charging at the termination voltage. Programming the Charge Current (ISET[_]) In order to accommodate both USB and ACpowered inputs with a minimum of external components, the ACT5830 features a I2C-programmable fast-charge current that requires no external current-setting components. The CHGR/ISET register sets ISET to any value greater than [0000] to program the maximum charge current to values in the 300mA to 1A via software. See for a detailed list of programmable charge currents. Note that the actual charging current may be lower than the programmed fast-charge current, due to the ACT5830's thermal regulation loop. See the section for more information. Enabling/Disabling the Charger The ACT5830 is enabled when the voltage applied to CHG_IN is greater than the voltage at BAT and is greater than 4.0V, and nENCHG is asserted low. The charger is disabled whenever nENCHG is high, independent of the voltages at battery and CHG_IN. The charger may also be disabled via the I2C interface. For more information about enabling and disabling the charger, see the System Startup & Shutdown section. Measuring the Charge Current In order to ease monitoring of the charge current, the ACT5830 generates a voltage at VICHG that is proportional to the charge current. The gain is typically 2.47mV/mA, and this voltage can be easily read by a system ADC. VICHG is high-impedance in shutdown. Operation Without a battery The ACT5830's charger is designed to operate with or without a battery connected. When a battery is connected, a normal charging cycle is performed as described below. If no battery is present, however, the charger will regulate the voltage at BAT to the voltage programmed by CHGR/VSET[_] to power the system. Thermal Regulation The ACT5830 features an internal thermal feedback loop that reduces the charging current as necessary to ensure that the die temperature does not rise beyond the thermal regulation threshold of 115°C. This feature protects the ACT5830 against excessing JUNCTION temperature, and allows the ACT5830 to be used in aggressive thermal designs without risk of damage. Note that attention to good thermal design is still required to achieve the fastest possible charge time. - 38 www.active-semi.com Copyright © 2008 Active-Semi, Inc. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) FUNCTIONAL DESCRIPTIONS CONT’D Charge Safety Timer While monitoring the charge cycle, the ACT5830 utilizes a charge safety timer to help identify damaged cells and to ensure that the cell is charged safely. Three timeout options of 60 minutes, 30 minutes, and 45minutes are available, as programmed by the CHGR/TIMOSET register, and a timerdisable option is also available for systems that do not require the ACT5830 to control charge timeouts. The bit assignments for each timeout period are set as follows: Table 12: TIMOSET[ ] Timeout Period Options TIMOSET PRECONDITION TOTAL CHARGING TIMEOUT TIMEOUT [1:0 ] 0 0 1 1 0 1 0 1 60 mins (default) TIMER DISABLED 30 mins 45 mins 3.0 hours (default) TIMER DISABLED 1.5 hours 2.2 hours Rev PrB, 05-Mar-08 TOP-OFF State In the TOP-OFF state, the cell is charged in constant-voltage (CV) mode. With the charge current limited by the internal chemistry of the cell, decreases as charging continues. During a normal charging cycle charging proceeds until the charge current decreases beyond the End-Of-Charge (EOC) threshold, defined as 10% of ISET. When this happens, the state machine terminates the charge cycle and jumps to the SLEEP state. SLEEP State In SLEEP mode the ACT5830 presents a highimpedance to the battery, allowing the cell to “relax” and minimizing battery leakage current. The ACT5830 continues to monitor the cell voltage, however, so that it can re-initiate charging cycles as necessary to ensure that the cell remains fully charged. Under normal operation, the state machine initiates a new charging cycle by jumping to the FAST-CHARGE state when VBAT drops below the Charge Termination Threshold (programmed by VSET) by more than the Charge Restart Threshold of 200mV (typ). SUSPEND State PRECONDITION State The ACT5830 features a user-selectable suspendcharge mode (SUSCHG), which disables the charger but keeps other circuitry functional. Charging continues in the SUSPEND state until CHGR/SUSPEND is cleared, at which point the charge timer is reset and the state machine jumps to the PRECHARGE state. Suspend charge by setting CHGR/SUSCHG = [1]. Permit charging by clearing CHGR/SUSCHG to [0]. TIMEOUT-FAULT State In order to prevent continued operation with a damaged ce ll, there is no direct path to resume charging once a Timeout Fault occurs. In order to resume charging, the state machine must jump to the SUSPEND state as a result of any of the following events: microprocessor sets CHGR/SUSCHG to [1], microprocessor pulls nENCHG high, the input supply is removed or the input suppl voltage drops below the UVLO threshold (4V), or the battery is removed. Once any of these events CHGR State-Machine A new charging cycle begins with the PRECONDITION state. In this state, the cell is charged at a reduced current of 10% of ISET, the programmed fast charge current. During a normal charge cycle, charging continues at this rate until VBAT reaches the Precondition Threshold Voltage of 2.9V (typ), at which point the charging state machine jumps to its FAST-CHARGE state. If VBAT does not reach the Precondition Threshold Voltage before the charge timeout period expires, then a damaged cell is detected and the state machine jumps to the TIMEOUT-FAULT State. FAST-CHARGE State In FAST-CHARGE mode, the charger operates in constant-current (CC) mode and charges the cell at the current programmed by CHGR/ISET. During a normal charge cycle fast-charge continues until VBAT reaches the termination voltage programmed by VSET, at which point the state machine jumps to the TOPOFF state. Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 39 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 SINGLE-CELL Li+ BATTERY CHARGER (CHGR) FUNCTIONAL DESCRIPTIONS CONT’D occur, the state machine jumps to the SUSPEND state and charging can resume as defined by Figure 4. NO BAT State The ACT5830 charger has been designed so that it will provide system power when there is no battery present. If the battery is not present at any time while a valid input voltage (>4V) is applied to CHG_IN, the ACT5830 will enable the charger and regulate the output at the voltage programmed by CHGR/VSET[ ], simulating a battery-present condition. The output current of the charger in this state is default to 1000mA to ensure full operation of the phone. When operating in this state, the charge timers are disabled but the thermal regulation loop is active. It is important for the application designer to consider both the power available from the charger as well as the thermal design in order to ensure proper system operation in this state. The Figure 4: Charger State Diagram ANY STATE V BATID > 2 .5V AND V CHG _IN > U VLO AND CHGR/SUSCHG[ ] = [0] Rev PrB, 05-Mar-08 user can prevent this operation by either: pull nENCHG high, or setting SUSCHG = [1]. If the battery is reconnected while operating in the NO BAT state, the state machine resets the charge timers and jumps to the PRECONDITION state. Reverse Battery The ACT5830 includes internal circuitry that eliminates the need for series blocking diodes, reducing solution size and cost as well as dropout voltage relative to conventional battery chargers. When the input supply is removed, when VIN goes below the ACT5830's under voltage-lockout (UVLO) voltage, or when VIN drops below VBAT, the ACT5830 automatically goes into SUSPEND mode and reconfigures its power switch to minimize current drain from the battery. ANY STATE V CHG_IN < V BAT O R V CHG_IN < U VLO OR CHGR/SUSCHG[ ] = [1] LDO-MODE V BA TI D SUSPEND < 2. 0V BATTERY PRESENT AND V CHG_IN > V BAT A ND V CHG_IN > U VLO AND CHGR/SUSCHG[ ] = [0] T > TIMOSET[ ] AND V BAT < 2 .9V TIMEOUT-FAULT P RECONDITION V BAT > 2 .9V Charge Timers Cleared FAST-CHARGE V BAT = V SET[ ] T > TIMOSET[ ] Charge Timers not Cleared or I BAT > ISET[ ]/10 TOP-OFF I BAT < ISET[ ]/10 or T > TIMOSET[ ] DELAY T > 32ms SLEEP V BAT < V SET[ ] – 200mV Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 40 - www.active-semi.com Copyright © 2008 Active-Semi, Inc. ACT5830 PACKAGE OUTLINE AND DIMENSIONS PACKAGE OUTLINE TQFN55-40 PACKAGE OUTLINE AND DIMENSIONS D D/2 Rev PrB, 05-Mar-08 SYMBOL A E/2 DIMENSION IN MILLIMETERS MIN 0.700 0.000 DIMENSION IN INCHES MIN 0.028 0.000 MAX 0.800 0.050 MAX 0.031 0.002 A1 A3 E 0.200 REF 0.150 4.900 4.900 3.450 3.450 0.250 5.100 5.100 3.750 3.750 0.008 REF 0.006 0.193 0.193 0.136 0.136 0.010 0.201 0.201 0.148 0.148 b D E D2 E2 e 0.400 BSC 0.300 0.500 0.016 BSC 0.012 0.020 A A3 D2 L b A1 L R 0.300 0.012 e E2 R Innovative PowerTM ActivePMUTM is a trademark of Active-Semi. I2CTM is a trademark of Philips Electronics. - 41 - www.active-semi.com Copyright © 2008 Active-Semi, Inc.