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BQ500210RGZR

BQ500210RGZR

  • 厂商:

    BURR-BROWN(德州仪器)

  • 封装:

    VQFN48_EP

  • 描述:

    IC WIRELESS PWR TX 48VQFN

  • 数据手册
  • 价格&库存
BQ500210RGZR 数据手册
bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 Qi Compliant Wireless Power Transmitter Manager Check for Samples: bq500210 FEATURES APPLICATIONS • • 1 • • • • • • Intelligent Control of the Power Transfer between Base Station and Mobile Device Conforms to the Wireless Power Consortium (WPC) Wireless Power Transfer 1.0.2 Specification Digital Demodulation Significantly Simplifies Solution Over bq500110 Improved Parasitic Metal Object Detection (PMOD) Promotes Safety During Wireless Power Transfer Enhanced Charge Status Indicator Operating Modes Status Indicators – Standby – Power Transfer (visual and audio) – Charge Complete – Fault Over Temperature Protection • • WPC 1.0.2 Compliant Wireless Chargers for: – Mobile and Smart Phones – MP3 Players – Global Positioning Devices – Digital Cameras Other Wireless Power Transmitters in: – Cars and Other Vehicles – Hermetically Sealed Devices, Tools, and Appliances – Furniture Built-In Wireless Chargers – Toy Power Supplies and Chargers See www.ti.com/wirelesspower for More Information on TI's Wireless Charging Solutions DESCRIPTION The bq500210 is a second generation Wireless Power dedicated digital controller that integrates the logic functions required to control Wireless Power Transfer in a single channel WPC compliant contactless charging base station. The bq500210 is an intelligent device that periodically pings the surrounding environment for available devices to be powered, monitors all communication from the device being wirelessly powered, and adjusts power applied to the transmitter coil per feedback received from the powered device. The bq500210 also manages the fault conditions associated with the power transfer and controls the operating modes status indicator. The bq500210 supports improved Parasitic Metal Object Detection (PMOD). The controller in real time analyzes the efficiency of the established power transfer using Rectified Power Packets and protects itself and the power receiver from excessive power loss and heat associated with parasitic metal objects placed in the power transfer path. The bq500210 is available in an area saving 48-pin, 7mm x 7mm QFN package and operates over a temperature range from –40°C to 110°C. Power Power Stage AC-DC Rectification Voltage Conditioning Load Communication bq500210 Controller bq51013 Transmitter Receiver 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Copyright © 2011–2012, Texas Instruments Incorporated bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. ORDERING INFORMATION (1) OPERATING TEMPERATURE RANGE, TA ORDERABLE PART NUMBER PIN COUNT SUPPLY PACKAGE TOP SIDE MARKING bq500210RGZR 48 pin Reel of 2500 QFN bq500210 bq500210RGZT 48 pin Reel of 250 QFN bq500210 -40°C to 110°C (1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI web site at www.ti.com. ABSOLUTE MAXIMUM RATINGS (1) over operating free-air temperature range (unless otherwise noted) VALUE UNIT MIN MAX Voltage applied at V33D to DGND –0.3 3.8 V Voltage applied at V33A to AGND –0.3 3.8 V Voltage applied to any pin (2) Storage temperature,TSTG (1) (2) –0.3 3.8 V –40 150 °C Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. All voltages referenced to GND. THERMAL INFORMATION bq500210 THERMAL METRIC (1) RGZ UNITS 48 PINS θJA Junction-to-ambient thermal resistance (2) θJC(top) Junction-to-case(top) thermal resistance θJB Junction-to-board thermal resistance 28.4 (3) 13.9 (4) 5.3 (5) ψJT Junction-to-top characterization parameter ψJB Junction-to-board characterization parameter θJC(bottom) Junction-to-case(bottom) thermal resistance (1) (2) (3) (4) (5) (6) (7) 2 0.2 (6) (7) °C/W 5.2 1.4 For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953. The junction-to-ambient thermal resistance under natural convection is obtained in a simulation on a JEDEC-standard, high-K board, as specified in JESD51-7, in an environment described in JESD51-2a. The junction-to-case (top) thermal resistance is obtained by simulating a cold plate test on the package top. No specific JEDECstandard test exists, but a close description can be found in the ANSI SEMI standard G30-88. The junction-to-board thermal resistance is obtained by simulating in an environment with a ring cold plate fixture to control the PCB temperature, as described in JESD51-8. The junction-to-top characterization parameter, ψJT, estimates the junction temperature of a device in a real system and is extracted from the simulation data for obtaining θJA, using a procedure described in JESD51-2a (sections 6 and 7). The junction-to-board characterization parameter, ψJB, estimates the junction temperature of a device in a real system and is extracted from the simulation data for obtaining θJA , using a procedure described in JESD51-2a (sections 6 and 7). The junction-to-case (bottom) thermal resistance is obtained by simulating a cold plate test on the exposed (power) pad. No specific JEDEC standard test exists, but a close description can be found in the ANSI SEMI standard G30-88. Spacer Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 RECOMMENDED OPERATING CONDITIONS over operating free-air temperature range (unless otherwise noted) MIN NOM MAX V Supply voltage during operation, V33D, V33A 3.0 TA Operating free-air temperature range –40 TJ Junction temperature 3.3 UNIT 3.6 V 125 °C 125 °C ELECTRICAL CHARACTERISTICS over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN NOM MAX UNIT SUPPLY CURRENT IV33A V33A = 3.3 V 8 15 IV33D V33D = 3.3 V 42 55 V33D = 3.3 V while storing configuration parameters in flash memory 53 65 3.3 3.6 4 4.6 Supply current IV33D mA INTERNAL REGULATOR CONTROLLER INPUTS/OUTPUTS V33 3.3-V linear regulator V33FB 3.3-V linear regulator feedback IV33FB Series pass base drive Beta Series NPN pass device Emitter of NPN transistor 3.25 VIN = 12 V; current into V33FB pin 10 V mA 40 EXTERNALLY SUPPLIED 3.3 V POWER V33D Digital 3.3-V power TA = 25°C 3 3.6 V V33A Analog 3.3-V power TA = 25°C 3 3.6 V V33 slew rate V33 slew rate between 2.3V and 2.9V, V33A = V33D V33Slew 0.25 V/ms MODULATION AMPLIFIER INPUTS EAP-A, EAN-A, EAP-B, EAN-B VCM Common mode voltage each pin EAP-EAN Modulation voltage digital resolution –0.15 REA Input Impedance Ground reference 0.5 IOFFSET Input offset current 1 kΩ source impedance –5 1.631 1 1.5 V mV 3 MΩ 5 µA ANALOG INPUTS V_IN, I_IN, TEMP_IN, I_COIL, LED_MODE, PMOD_THR VADDR_OPEN Voltage indicating open pin LED_MODE, PMOD_THR open VADDR_SHORT Voltage indicating pin shorted to GND LED_MODE, PMOD_THR shorted to ground VADC_RANGE Measurement range for voltage monitoring Inputs: V_IN, I_IN, TEMP_IN, I_COIL INL ADC integral nonlinearity Ilkg Input leakage current 3V applied to pin RIN Input impedance Ground reference CIN Input capacitance 2.37 V 0.36 V 0 2.5 V -2.5 2.5 mV 100 8 nA MΩ 10 pF DGND1 + 0.25 V DIGITAL INPUTS/OUTPUTS (1) VOL Low-level output voltage IOL = 6 mA , V33D = 3 V VOH High-level output voltage IOH = -6 mA VIH High-level input voltage V33D = 3V VIL Low-level input voltage V33D = 3.5 V IOH(MAX) Output high source current 4 mA IOL(MAX) Output low sink current 4 mA (2) , V33D = 3 V V33D - 0.6V 2.1 V 3.6 1.4 V V SYSTEM PERFORMANCE VRESET Voltage where device comes out of reset V33D Pin tRESET Pulse width needed for reset RESET pin FSW Switching Frequency (1) (2) 2.3 2.4 2 110 V µs 205 kHz The maximum IOL, for all outputs combined, should not exceed 12 mA to hold the maximum voltage drop specified. The maximum IOH, for all outputs combined, should not exceed 48 mA to hold the maximum voltage drop specified. Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 3 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com ELECTRICAL CHARACTERISTICS (continued) over operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS MIN NOM MAX UNIT tdetect Time to detect presence of device requesting power tretention Retention of configuration parameters TJ = 25°C 100 Years Write_Cycles Number of nonvolatile erase/write cycles TJ = 25°C 20 K cycles 0.6 sec DEVICE INFORMATION Functional Block Diagram bq500210 COMM_A+ COMM_ACOMM_B+ COMM_B- LED Control / Low Power Supervisor Interface MSP430 CNTL LED DRIVE Digital Demodulation PWM-A PWM PWM-B (EN) mController Buzzer Control 12-bit ADC TEMP_INT Low Power Control Debug/Programming V_IN I_OUT TEMP_EXT BUZ_AC BUZ_DC RESERVED RESERVED RESERVED RESERVED RESERVED I2C (PMBUS) PMB_DATA PMB_CLK SLEEP RESET 4 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 REFIN AGND V_IN AIN7 LED_M ODE PMOD_THR I_IN V33FB COMM_B- COMM_B+ COMM_A- COMM_A+ 48 47 46 45 44 43 42 41 40 39 38 37 48-PIN QFN PACKAGE (TOP VIEW) AIN5 1 36 AGND T_SENSE 2 35 BPCAP AIN3 3 34 V33A AIN8 4 33 V33D RESET 5 32 DGND SLEEP 6 31 RESERVED 30 RESERVED bq500210 23 24 BUZ_DC MSP_MOSI/LPWR_EN BUZ_AC 25 22 12 DRV_CFG DPWM _A 21 MSP_RDY DOUT_TX 26 20 11 PM B_CTRL PMB _DATA 19 RESERVED PMB_ALRT 27 18 10 M SP_TCK/ CLK PMB _CLK 17 RESERVED DOUT_4B 28 16 9 DOUT_4A MSP_TEST 15 RESERVED DOUT_2B 29 14 8 M SP_SYNC MSP_MISO/LED_B 13 7 DPMB_B MSP_RST/LED_A PIN FUNCTIONS PIN NO. NAME I/O DESCRIPTION 1 AIN5 I Connect this pin to GND 2 T_SENSE I Thermal Sensor Input 3 AIN3 I Connect this pin to GND 4 AIN8 I Connect this pin to GND 5 RESET I Device reset 6 SLEEP O Low-power mode start logic output 7 MSP_RST/LED_A I MSP – Reset, LED-A 8 MSP_MISO/LED_B I MSP – TMS, SPI-MISO, LED-B 9 MSP_TEST I MSP – Test 10 PMB_CLK I/O PMBus Clock 11 PMB_DATA I/O PMBus Data 12 DPWM_A O PWM Output A 13 DPMB_B O PWM Output B 14 MSP_SYNC O MSP SPI_SYNC Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 5 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com PIN FUNCTIONS (continued) PIN NO. 6 NAME I/O DESCRIPTION 15 DOUT_2B O Optional Logic Output 2B. Leave this pin floating. 16 DOUT_4A O Optional Logic Output 4A. Leave this pin floating. 17 DOUT_4B O Optional Logic Output 4B. Leave this pin floating. 18 MSP_TCK/CLK I/O Disable Diagnostic Output. Leave this pin floating to inhibit diagnostic. 19 PMB_ALERT O PMBus Interface 20 PMB_CTRL I PMBus Interface 21 DOUT_TX I Leave this pin floating 22 DRV_CFG I Pull this input to V33D 23 BUZ_AC O AC Buzzer Output 24 BUZ_DC O DC Buzzer Output 25 MSP_MOSI/LPWR_EN I/O MSP-TDI, SPI-MOSI, Low Power Enable 26 MSP_RDY I/O MSP-TDO, Programmed Indicator 27 RESERVED I/O Reserved, for factory use only 28 RESERVED I/O Reserved, for factory use only 29 RESERVED I/O Reserved, for factory use only 30 RESERVED I/O Reserved, for factory use only 31 RESERVED I/O Reserved, for factory use only 32 DGND — Digital GND 33 V33D — Digital Core 3.3V Supply 34 V33A — Analog 3.3V Supply 35 BPCAP — Bypass Capacitor Connect Pin 36 AGND — Analog GND 37 COMM_A+ I Digital demodulation noninverting input A 38 COMM_A- I Digital demodulation inverting input A 39 COMM_B+ I Digital demodulation noninverting input B 40 COMM_B- I Digital demodulation inverting input B 41 V33FB I 3.3V Linear-Regulator Feedback Input. Leave this pin floating. 42 I_IN I Transmitter Input Current 43 PMOD_THR I Input to Program Metal Object Detection Threshold 44 LED_MODE I Input to Select LED Mode 45 AIN7 I Reserved Analog Input. Connect this pin to GND. 46 V_IN I Transmitter Input Voltage 47 AGND — 48 REFIN I Analog GND External Reference Voltage Input. Connect this Input to AGND. Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 TYPICAL CHARACTERISTICS SPACER EFFICIENCY vs RECEIVER LOAD CURRENT PMOD THRESHOLD vs OUTPUT POWER 80 1.4 RPMOD = 64.9 kW 1.2 75 RPMOD = 75 kW RPMOD = 56.2 kW Rectifier Loading - W 1 Efficiency - % 70 65 60 55 50 100 0.8 0.6 0.4 0.2 300 500 700 900 RL - Load Current - mA 1100 RPMOD = 48.7 kW RPMOD = 0 kW RPMOD = 42.2 kW 0 0 Figure 1. 1 2 3 4 PO - Output Power - W 5 6 Figure 2. Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 7 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com FUNCTIONAL OVERVIEW The typical Wireless Power Transfer System consists of primary and secondary coils that are positioned against each other in a way to maximize mutual coupling of their electromagnetic fields. Both coils have ferrite shields as part of their structures to even further maximize field coupling. The primary coil is excited with the switching waveform of the transmitter power driver that gets its power from an AC-DC wall adapter. The secondary coil is connected to the rectifier that can either directly interface the battery or can have an electronic charger or postregulator connected to its output. The capacitors in series with the coils are tuned to create resonance in the system. The system being in resonance facilitates better energy transfer compared to inductive transfer. Power transfer in the resonant system can also be easily controlled with the variable frequency control approach. To limit operating frequency variation the bq500210 uses both frequency and PWM methods to control power transfer. When the operating frequency approaches a 205kHz limit and the receiver still commands lower power, the bq500210 will reduce the PWM cycle in discrete steps to maintain the output in regulation. The rectifier output voltage is monitored by the secondary side microcontroller that generates signals to control the modulation circuit to pass coded information from the secondary side to the primary side. The coded information is organized into information packets that have Preamble bytes, Header bytes, message bytes and Checksum bytes. Per the WPC specification, information packets can be related to Identification, Configuration, Control Error, Rectified Power, Charge Status, and End of Power Transfer information. For detailed information on the WPC specification, visit the Wireless Power Consortium website at http://www.wirelesspowerconsortium.com/. There are two ways the coupled electromagnetic field can be manipulated to achieve information transfer from the secondary side to the primary side. With the resistive modulation approach shown in Figure 3, the communication resistor periodically loads the rectifier output changing system Q factor, and as a result the value of the voltage on the primary side coil. With the capacitive modulation approach shown in Figure 4, a pair of communication capacitors are periodically connected to the receiver coil network. These extra capacitance application changes slightly the resonance frequency of the system and its response on the current operating frequency, which in turn leads to coil voltage variation on the primary side. With both modulation techniques primary side coil waveform variations are detected with a Digital Demodulation algorithm in the bq500210 to restore the content of the information packets and adjust controls to the transmitter. Rectifier Receiver Coil Receiver Capacitor Amax Modulation Resitor Operating state at logic “0” A(0) Operating state at logic “1” A(1) Comm Fsw a) F, kHz b) Figure 3. Resistive Modulation Circuit 8 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 Rectifier Receiver Coil Receiver Capacitor Modulation Capacitors Amax Comm A(0) Operating state at logic “ 0” A(1) Operating state at logic “ 1” Fsw F, kHz Fo(1) < Fo(0) a) b) Figure 4. Capacitive Modulation Circuit The bq500210 is a second generation wireless power dedicated transmitter controller that simplifies integration of wireless power technology into consumer electronics, such as digital cameras, smart phones, MP3 players, and global positioning systems, along with infrastructure applications such as furniture and cars. The bq500210 is a specialized digital power microcontroller that controls WPC A1, single coil, transmitter functions such as analog ping, digital ping, variable frequency output power control, parasitic metal object detection, over temperature protection of the transmitter top surface, and indication of the transmitter operating states. The bq500210 digital demodulation inputs receive scaled down voltages from the transmitter resonant components. The digital demodulation algorithm is a combination of several digital signal processing techniques that decodes information packets sent by the power receiving device and provides necessary changes to power drive signals facilitating closed loop regulation. The controller analog inputs monitor input DC voltage, input current, and the thermal protection input. These analog inputs support monitoring and protective functions of the controller. The bq500210 controls two LEDs to indicate transmitter operating and fault states. Having the LEDs connected directly to the controller simplifies the transmitter electrical schematic and provides a cost effective solution. Option Select Pins Two pins (43, 44) in the bq500210 are allocated to program the PMOD mode and the LED mode of the device. At power-up, a bias current is applied to pins LED_MODE and PMOD_THR and the resulting voltage measured in order to identify the value of the attached programming resistor. The values of the operating parameters set by these pins are determined using Option Select Bins. For LED_MODE, the selected bin determines the LED behavior based on LED Modes; for the PMOD_THR, the selected bin sets a threshold used for parasitic metal object detection (see Metal Object Detection (PMOD) section). Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 9 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com V33 LED_MODE PMOD_THR bq500210 10 mA IBIAS Resistors to set options To 12 -bit ADC Figure 5. Option Programming Table 1. Option Select Bins BIN NUMBER RESISTANCE (kΩ) LED OPTION PMOD THRESHOLD (mW) (1) 0 GND 0 500 1 42.2 1 600 2 48.7 2 700 3 56.2 3 800 4 64.9 4 900 5 75.0 5 1000 6 86.6 6 1100 7 100 7 1200 8 115 8 1300 9 133 9 1400 10 154 10 1500 11 178 11 1600 12 205 12 1700 13 open 13 OFF (1) Threshold numbers are approximate. See Figure 2. LED Modes The bq500210 can directly control two LED outputs (pins 7 and 8). They are driven based on one of the selectable modes. The resistor connected between pin 44 and GND selects one of the desired LED indication schemes presented in Table 2. 10 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 Table 2. LED Modes LED Control Option LED Selection Resistor 0 237 kΩ Operational States Description LED Standby Power Transfer Charge Complete Fault PMOD Warning LED1, Green – – – – – LED2, Red – – – – – LED1, Green OFF BLINK SLOW ON OFF OFF LED2, Red OFF OFF OFF ON BLINK FAST LED1, Green OFF BLINK SLOW ON OFF OFF LED2, Red OFF OFF OFF OFF BLINK FAST LED1, Green OFF BLINK SLOW ON ON OFF LED2, Red OFF OFF OFF ON BLINK FAST LED1, Green OFF BLINK SLOW ON OFF OFF LED2, Red OFF OFF OFF ON BLINK FAST LED1, Green OFF BLINK SLOW ON OFF OFF LED2, Red OFF OFF OFF ON BLINK FAST LED1, Green ON BLINK SLOW ON OFF OFF LED2, Red ON OFF OFF ON BLINK FAST LED1, Green ON BLINK SLOW ON OFF OFF LED2, Red ON OFF OFF ON BLINK FAST LED1, Green ON BLINK SLOW ON OFF OFF LED2, Red ON OFF OFF ON BLINK FAST LED1, Green ON BLINK SLOW ON OFF OFF LED2, Red ON OFF OFF ON BLINK FAST LED1, Green ON BLINK SLOW ON OFF OFF LED2, Red ON OFF OFF ON BLINK FAST LED1, Green – – – – – LED2, Red – – – – – LED1, Green – – – – – LED2, Red – – – – – LED1, Green – – – – – LED2, Red – – – – – Reserved for test Generic+ CS100 + CS90 + CS6min Generic Generic + CS100 Generic + CS100 + CS90 Generic+ CS100 + CS6min Suggested Suggested + CS100 Suggested + CS100 + CS90 Suggested+ CS100 + CS6min Suggested+ CS100 + CS90 + CS6min Reserved Reserved Reserved Support CS–100 Support CS–90 Support CS–6Min – – – YES YES YES NO NO NO YES NO NO YES YES NO YES NO YES NO NO NO YES NO NO YES YES NO YES NO YES YES NO NO – – – – – – – – – Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 11 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com Thermal Protection The bq500210 can provide thermal protection to the transmitter. An external NTC resistor can be placed in the most thermally challenged area, which usually is the center of the transmitting coil, and connected between the dedicated pin 2 and GND. The threshold on pin 2 is set to 1.00V. The NTC resistor and the resistor from pin 2 to VCC create a temperature sensitive divider. The user has full flexibility choosing the NTC resistor and the value of the resistor from pin 2 to VCC to set the desired temperature when the system shuts down. RTEMP_IN = 2.3 x RNTC(TMAX) (1) The system will attempt to restore normal operation after approximately five minutes of being in the suspended mode due to tripping the over-temperature threshold, or if the receiver is removed. The bq500210 has a built-in thermal sensor that prevents the die temperature from exceeding 135°C. This sensor has ~10°C hysteresis. Audible Notification on Power Transfer Begin The bq500210 is capable of activating two types of buzzers to indicate that power transfer has begun. Pin 24 outputs a high logic signal for 0.4s that is suitable to activate DC type buzzers with built in tone generators, or other types of sound generators, or custom indication systems. Pin 23 outputs for 0.4 seconds a 4 kHz square wave signal suitable for inexpensive AC type ceramic buzzers. Power-On Reset The bq500210 has an integrated power-on reset (POR) circuit that monitors the supply voltage. At power-up, the POR circuit detects the V33D rise. When V33D is greater than VRESET, the device initiates an internal startup sequence. At the end of the startup sequence, the device begins normal operation. External Reset The device can be forced into a reset state by an external circuit connected to the RESET pin. A logic low voltage on this pin holds the device in reset. To avoid an erroneous trigger caused by noise, a 10kΩ pull up resistor connected to 3.3V is recommended. Parasitic Metal Object Detection (PMOD) As a safety feature, the bq500210 can be configured to detect the presence of a parasitic metal object placed in the vicinity of the magnetic field. The bq500100 uses the Rectified Power Packet information and the measured transmitter input-power to calculate parasitic losses in the system. When an excessive power loss is detected, the device will blink the red LED to warn about this undesirable condition. If during a twenty second warning time the parasitic metal object is not removed, the controller will disable power transfer. After being in halt for five minutes, the bq500210 will attempt normal operation. If the object that caused excessive power dissipation is still present, the sequence will be repeated over and over again. If the metal object is removed during this twenty second warning time, then normal operation will be restored promptly. To facilitate the parasitic loss function, the bq500210 monitors the input voltage and the input current supplied to the power drive circuit. The PMOD_THR pin is used to set the threshold at which the PMOD is activated. The highest bin, the pin is left floating, disables the PMOD feature. Note: The WPC Specification V1.0 does not define the requirements and thresholds for the PMOD feature. Hence, metal object detection may perform differently with different products. Therefore, the threshold setting is determined by the user. In most desktop wireless charger applications, a PMOD threshold setting of 0.8W has shown to provide acceptable results in stopping power transfer and preventing small metal objects like coins, pharmaceutical wraps, etc. from becoming dangerously hot when placed in the path of the wireless power transfer. Figure 2 depicts PMOD performance measured on a bq500210 EVM with a bq51013 EVM. The parasitic metal loss is emulated by loading the output of the rectifier in the bq51013 EVM. ADVANCED CHARGE INDICATION SCHEMES The WPC specification provides an End of Power Transfer message (EPT–01) to indicate charge complete. Upon receipt of the charge complete message, the bq500210 will change the LED indication as defined by the LED_MODE pin (normally solid green LED output), and halt power transfer for 5 minutes. 12 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 In some battery charging applications there is a benefit to continue the charging process in trickle charge mode to top off the battery. There are several information packets in the WPC specification related to the levels of battery charge – Charge Status. The bq500210 uses these commands in association with some of the LED modes described in Table 2 to enable the top-off charging pattern. When CS100 LED mode is enabled, the bq500210 will change the LED indication to reflect charge complete when a Charge Status = 100% message is received, but unlike the response to an EPT, it will not halt power transfer while the LED is solid green. The mobile device can use a CS100 packet to enable trickle charge mode. Note that all options related to CS100 have an effect on the LEDs only; they do not have any impact on actual power transfer which continues uninterrupted. Two more optional modes are available which can be used to change the LED mode back to indicate charging after the CS100 has forced the charge complete output: • If CS90 is enabled, a Charge Status message indicating less than 90% charge will force the LED output to indicate charging (typically a slow blinking green LED). • When CS6MIN is enabled, and if the bq500210 does not detect another CS100 packet for six minutes, it will assume the receiver charge has dropped significantly and will turn on charging status indication. APPLICATION INFORMATION The application diagram for the transmitter with reduced standby power consumption is shown in Figure 6. Power reduction is achieved by periodically shutting down the bq500210 while LED and housekeeping control functions are continued by U4 – the low-cost, low quiescent current microcontroller MSP430G2001. When U4 is present in the circuit (which is set by a pull-up resistor on bq500210 pin 25), the bq500210 at first power-up boots the MSP430G2001 with the necessary firmware and the two chips operate in tandem. During standby operation, the bq500210 periodically issues SLEEP command, Q12 pulls down the enable pin on U2, the TLV70033 LDO, which shut off power to the bq500210. Meanwhile, the MSP430G2001 maintains the LED indication and stores previous charge state during this bq500210 shut-off period. This bq500210 shut-off period is set by the RC time constant network of R25, C38 (from Figure 6). WPC compliance mandates the power transmitter controller awakes every 0.4s to produce an analog ping and check if a valid device is present. Altering this time constant, therefore, is not advised. Note: The user does not need to program the MSP430G2001, an off-the-shelf part can be used! The user cannot modify or customize this firmware. Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 13 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com C21 0.01uF 50V VIN N/C VCC C26 0.1uF 50V U5 VIN R33 1R Buck Regulator L1 330uH BOOT U2 PH IN VSEN EN ENA VIN 3V3_VCC R9 1K0 OUT 1 3 6 AGND I_SENSE DC Jack 19 Vin C6 10uF 50V SS C25 0.1uF 50V D1 MBR0540 GND COMP AGND GND N/C R36 390K C8 0.1uF 50V TLV70033 AGND AGND 470R AGND AGND U3 C28 0.01uF 50V GND_TIE R4 3K01 PWM 7 EN/PG U6 DPWM-1A AGND GND AGND AGND R13 190K Q12 BSS138 C9 0.1uF 50V C16 0.1uF 50V UGATE C15 47nF 100V COIL 1 C29 BOOT 2 50V PH 8 GND LGATE 5 Q2 TPS28225D GND 3V3_VCC R6 200K 23K2 R35 10R 3V3_VCC COMM+ R21 22R R31 10R R11 10K0 4 3 2 1 I_SENSE 46 45 42 33 34 35 31 30 29 28 27 PMB_CTRL PMB_ALRT PMB_DATA PMB_CLK 20 19 11 10 DPWM_A DPWM_B MSP_SYNC DOUT_2B DOUT_4A DOUT_4B 12 13 14 15 16 17 MSP_RDY MSP_MOSI/LPWR_EN BUZ_DC BUZ_AC 26 25 24 23 AIN8 AIN3 T_SENSE AIN5 V_IN AIN7 I_IN SLEEP MSP_RST MSP_MISO MSP_TEST 6 7 8 9 MSP_CLK 18 21 22 MSP_CLK DOUT_TX DRV_CFG 37 38 39 40 COMM_A+ COMM_ACOMM_B+ COMM_B- AGND BPCAP RESERVED RESERVED RESERVED RESERVED RESERVED V33A U1 SLEEP MSP_RST/LED_A MSP_MISO/LED_B MSP_TEST C20 1.0uF 16V AGND R24 10R 10K0 R15 10V EPAD GND LED_MODE PMOD_THR R2 10R DPWM-1A MSP_MISO R47 10K0 MSP_TEST R17 10K0 MSP_SYNC U4 MSP_CLK 1 2 3 4 5 6 7 MSP_SYNC AGND MSP_RDY MSP_MOSI MSP_RDY R48 10K0 14 13 12 11 10 9 P1.7 8 VCC P1.0 P1.1 P1.2 P1.3 GND XIN XOUT TEST RST P1.4 P1.5 P1.6 3V3_VCC C12 1.0nF 16V BUZ MSP430G2001 44 43 R22 100K AGND R12 47K0 0.01uF C10 50V 49 47 COMM- 4.7uF C11 R16 10K0 MSP_MOSI 32 COMM+ AGND AGND VCC AGND GND 3V3_VCC RESET GND AGND C4 4.7nF 50V V33FB REFIN 5 36 J6 C24 4.7nF 50V 41 48 C3 1.0uF 16V BQ500210 R10 76K8 Optional NTC Sensor C1 1.0uF 16V V33D R19 10K0 C14 33pF 50V R30 10K COMM- AGND VIN D3 BAT54SW C5 4.7uF 10V R26 10K0 3V3_VCC GND R14 AGND C43 4.7uF 10V C13 47nF 100V C18 4.7nF 50V GND R18 10K0 3V3_VCC C27 22uF 25V 0.1uF Power Train C38 4.7uF 10V SLEEP Q1 R3 10R VDD 3 R25 280K R7 20m R32 1R AGND 4 GND AGND - 5 AGND GREEN D2 C23 0.1uF 50V + 4 2 Q3 BC847CL 6 C37 2700pF 50V INA199A2 C17 0.1uF 50V R5 R37 76K8 AGND C32 0.1uF 50V C2 47uF 6.3V R1 10K0 TPS54231 AGND VIN 3V3_VCC R23 42K2 R20 10K0 AGND Low Power Supervisor R8 10K0 R28 470R AGND AGND AGND Q7 BSS138 AGND MSP_RST R27 470R D5 G R AGND AGND Figure 6. Typical Application Diagram for Wireless Power Transmitter with Reduced Standby Power 14 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 bq500210 www.ti.com SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 C21 0.01uF 50V VIN N/C DC Jack 19 Vin C6 10uF 50V ENA SS C25 0.1uF 50V AGND L1 330uH R9 1K0 PH D1 MBR0540 GND COMP R37 76K8 GND_TIE C2 47uF 6.3V R1 10K0 AGND C32 0.1uF 50V AGND INA199A2 C17 0.1uF 50V R36 390K AGND R4 3K01 AGND GND R13 190K 3V3_VCC R7 20m R32 1R C9 0.1uF 50V Q1 R3 10R VDD PWM 7 EN/PG U6 DPWM-1A C16 0.1uF 50V - 5 AGND 3 AGND C23 0.1uF 50V + 4 2 Q3 BC847CL 4 GND AGND 3 6 U3 6 C37 2700pF 50V C28 0.01uF 50V 1 AGND I_SENSE VSEN AGND R33 1R Buck Regulator BOOT TPS54231 AGND VIN 3V3_VCC C26 0.1uF 50V U5 VIN VIN 3V3_VCC UGATE C15 47nF 100V COIL 1 BOOT 2 PH 8 C29 50V GND LGATE 5 Q2 TPS28225D R21 22R C13 47nF 100V C18 4.7nF 50V Power Train 3V3_VCC C43 4.7uF 10V C27 22uF 25V 0.1uF GND C5 4.7uF 10V 3V3_VCC GND R26 10K0 R6 200K GND R14 23K2 RESET AIN8 AIN3 T_SENSE AIN5 33 34 PMB_CTRL PMB_ALRT PMB_DATA PMB_CLK 20 19 11 10 DPWM_A DPWM_B MSP_SYNC DOUT_2B DOUT_4A DOUT_4B 12 13 14 15 16 17 MSP_RDY MSP_MOSI/LPWR_EN BUZ_DC BUZ_AC 26 25 24 23 V33A 35 31 30 29 28 27 U1 MSP_CLK DOUT_TX DRV_CFG 37 38 39 40 COMM_A+ COMM_ACOMM_B+ COMM_B- 47 COMM- 18 21 22 R28 470R EPAD COMM+ SLEEP MSP_RST/LED_A MSP_MISO/LED_B MSP_TEST LED_MODE PMOD_THR C20 1.0uF 16V R35 10R COMM+ 10K0 R15 D3 BAT54SW R31 10R C14 33pF 50V R30 10K COMM- AGND AGND AGND R2 10R DPWM-1A MSP_SYNC R17 10K0 AGND 44 43 49 AGND V_IN AIN7 I_IN GND 6 7 8 9 GND I_SENSE C4 4.7nF 50V GND 46 45 42 AGND BPCAP RESERVED RESERVED RESERVED RESERVED RESERVED 32 3V3_VCC 5 4 3 2 1 C3 1.0uF 16V BQ500210 R10 76K8 R11 10K0 V33FB REFIN 36 R19 10K0 41 48 V33D AGND VIN 3V3_VCC C1 1.0uF 16V R23 42K2 R27 470R D5 G AGND R AGND AGND Figure 7. Typical Application Diagram for Wireless Power Transmitter Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 15 bq500210 SLUSAL8C – JUNE 2011 – REVISED SEPTEMBER 2012 www.ti.com REVISION HISTORY Changes from Original (June 2011) to Revision A Page • Changed APPLICATION INFORMATION description ........................................................................................................ 13 • Changed Figure 6 ............................................................................................................................................................... 14 Changes from Revision A (August 2011) to Revision B Page • Changed APPLICATION INFORMATION description ........................................................................................................ 13 • Changed Figure 6 ............................................................................................................................................................... 14 • Changed Figure 7 ............................................................................................................................................................... 15 Changes from Revision B (July 2012) to Revision C Page • Changed Functional Block Diagram ..................................................................................................................................... 4 • Changed pinout ..................................................................................................................................................................... 5 • Changed pin 26 to MSP_RDY .............................................................................................................................................. 6 • Changed pins 27-31 to Reserved, for factory use only in PIN FUNCTIONS ....................................................................... 6 16 Submit Documentation Feedback Copyright © 2011–2012, Texas Instruments Incorporated Product Folder Links: bq500210 PACKAGE OPTION ADDENDUM www.ti.com 10-Dec-2020 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Pins Package Drawing Qty Eco Plan (2) Lead finish/ Ball material MSL Peak Temp Op Temp (°C) Device Marking (3) (4/5) (6) BQ500210RGZR NRND VQFN RGZ 48 2500 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 110 BQ500210 BQ500210RGZT NRND VQFN RGZ 48 250 RoHS & Green NIPDAU Level-3-260C-168 HR -40 to 110 BQ500210 (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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