MAX14714EWL+T

EVALUATION KIT AVAILABLE MAX14714 Compact 6A Smart Power Path Selector General Description The MAX14714 compact 6A smart power path selector features a low, 11mΩ (typ) RON internal FET and provides the system power from two separate power sources. The device has two switches in SPDT configuration, with bidirectional current-blocking capability when the switch is off. The MAX14714 features two individual enable inputs to control each power path. Each enable input controls the corresponding path as an independent switch. However, when both paths are enabled, the internal comparator controls the path based on the voltage at input nodes. The device also features an ultra-low supply current in the operating or off states for longer battery-life. The device is available in a 15-bump (1.2mm x 2.0mm) wafer-level package (WLP) and operates over the -40ºC to +85ºC extended temperature range. Applications ● ● ● ● Smartphones Tablet PCs e-Readers Wearables Features and Benefits ● Provides Robust Bidirectional Power Path • Wide Operating Input Voltage: +1.6V to +5.5V • 6A Continuous Current Capability • Integrated Two 11mΩ (typ) MOSFET Switches ● Enables Simple Power Switch Design • Individual Path Control • Automatic Power Path Control • Automatic Soft-Start • Powered by IN1, IN2, or OUT ● Significantly Extends Battery Life • Ultra-Low Quiescent Supply Current 2.5µA (typ) • Fast Switchover • Optimum Soft-Start Feature ● Compact Package Saves Board Space • 15-Bump 1.2mm x 2.0mm WLP Ordering Information appears at end of data sheet. Typical Application Circuit MAX14714 IN1 OUT CHARGER BATTERY 1 TA IN2 BATTERY 2 AP OR PMIC SYSTEM LOAD EN1 EN2 CONTROL GND 19-7117; Rev 0; 9/14 MAX14714 Compact 6A Smart Power Path Selector Absolute Maximum Ratings All voltages referenced to GND IN1, IN2....................................................................-0.3V to +6V OUT..........................................................................-0.3V to +6V EN1, EN2.................................................................-0.3V to +6V Current into IN1, IN2 DC Operating (Note 1).........................................................6A Pulse Rating (10ms).............................................................9A Continuous Power Dissipation (TA = +70ºC) WLP (derate 16.4mW/°C above +70°C).....................1312mW Operating Temperature Range.............................-40ºC to +85°C Junction Temperature.......................................................+150°C Storage Temperature Range..............................-65ºC to +150°C Soldering Temperature (reflow)........................................+260°C Note 1: DC current is limited by thermal design of the system. Package Thermal Characteristics (Note 2) WLP Junction-to-Ambient Thermal Resistance (θJA)...........52°C/W Note 2: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial. 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 in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Electrical Characteristics (VIN1, VIN2 = 1.6V to 5.5V; TA = -40ºC to +85ºC, unless otherwise noted. Typical values are at VIN1, VIN2 = 4.3V; TA = +25ºC.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS 5.5 V 5.75 µA SUPPLY OPERATION Operating Voltage VIN1 VIN2 Shutdown Current ISHDN Quiescent Current IIN1 IIN2 1.6 EN1 = high and EN2 = high EN1 or EN2 = low, ILOAD = 0mA 2.5 7.5 µA VIN_ = 4.3V, IOUT = 1A, TA = +25ºC 11 15 mΩ INTERNAL FET RON (IN1 or IN2 to OUT) RON Soft-Start Trigger Voltage |VIN VOUT| Soft-Start Time 0.95 tSS 1 5 V 10 ms Soft-Start Output dV/dt Limit ILIM_SS CLOAD = 100µF 60 mV/µs IN1 - IN2 Comparator Rising Threshold VTHR_IN VIN1 = 4.3V, VIN2 = 4.0V, OUT is initially connected to IN1, VIN2 rises until OUT connects to IN2 500 mV IN1 - IN2 Comparator Falling Threshold VVTHF_IN VIN1 = 4.3V, VIN2 = 4.6V, OUT is initially connected to IN2, VIN2 falls until OUT connects to IN1 -500 mV LOGIC INPUT (EN1, EN2) EN1, EN2 Input Logic High VIH EN1, EN2 Input Logic Low VIL EN1, EN2 Input Leakage Current www.maximintegrated.com ILEAK 1.4 VEN_ = 0V, 5.5V -1 V 0.4 V 1 µA Maxim Integrated │  2 MAX14714 Compact 6A Smart Power Path Selector Electrical Characteristics (continued) (VIN1, VIN2 = 1.6V to 5.5V; TA = -40ºC to +85ºC, unless otherwise noted. Typical values are at VIN1, VIN2 = 4.3V; TA = +25ºC.) (Note 3) PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS DYNAMIC PERFORMANCE (NOTE 4) Single-Path Turn-On Time tON Time from EN_ low to OUT reaches 90% of IN_ voltage, no load. (Figure 2) 6.5 µs Single-Path Turn-Off Time tOFF VIN_ = 3V, VEN_ = 0V to 3V, RLOAD = 1kΩ. Time from EN_ high to OUT reaches 10% of its initial value. (Figure 2) 8 µs Automatic Switchover Enable Time tASO VIN1 = 3.8V, VIN2 = 4.3V VEN1 = 0V, VEN2 = 3V to 0V to OUT reaches 90% of IN2. (Figure 2) 2 5 µs Automatic Switchover Break-Before-Make tBBM VIN1 = 3.7V, VIN2 = 3V to 4.3V VEN1 = 0V, VEN2 = 0V, OUT = 100mA and no load capacitor. 0.4 2 µs Automatic Switchover Debounce Time tASDEB VIN1 = 3.3V, VIN2 = 4.3V to 3V VEN1 = 0V, VEN2 = 0V. (Figure 3) 0 2 µs Note 3: All devices are 100% production tested at TA = +25ºC. Specifications over the operating temperature range are guaranteed by design. Note 4: All timing is measured using 20% and 80% levels unless otherwise specified. Timing Diagrams IN1 OUT IN2 OUT tASDEB EN1 EN2 Figure 1. Automatic Switch Operation: IN2 Rise www.maximintegrated.com Maxim Integrated │  3 MAX14714 Compact 6A Smart Power Path Selector Timing Diagrams (continued) IN2 IN1 tASO tOFF tON OUT EN1 EN2 Figure 2. Automatic Switch Operation: EN2 On (Time scale is exaggerated for easy recognition in the waveform) IN2 OUT IN1 OUT tASDEB EN1 EN2 Figure 3: Automatic Switch Operation: IN2 Sag (Time scale is exaggerated for easy recognition in the waveform) www.maximintegrated.com Maxim Integrated │  4 MAX14714 Compact 6A Smart Power Path Selector Typical Operating Characteristics (CIN1,IN2 = 0.1µF, COUT = 100µF, TA = +25°C, unless otherwise noted.) IN1 SHUTDOWN SUPPLY CURRENT (µA) TA = +85ºC 3.5 TA = +25ºC 2.5 2.0 1.5 TA = -40ºC 1.0 0.5 0.0 V/EN1\ = 0V 0 2 3 4 IN1 SUPPLY VOLTAGE (V) 5 6 TA = -40ºC, VIN1=VOUT=UNCONNECTED 3.0 2.5 2.0 1.5 TA = +85ºC, VIN1=VOUT=5V 1.0 TA = -40ºC, VIN1=VOUT=5V 0.5 0.0 1 2 3 4 2.0 1.5 TA = +85ºC, VIN2=VOUT= 5V 1.0 TA = -40ºC, VIN2=VOUT= 5V 0.5 0 1 2 5 6 NORMALIZED IN1-OUT ON-RESISTANCE NORMALIZED IN1-OUT ON-RESISTANCE 6 5 VIN1 = 1.6V 3 2 VIN1 = 3V VIN1 = 3.3V 1 0 VIN1 = 4.2V VIN1 = 5V 0 1 2 3 CURRENT (A) www.maximintegrated.com 4 TA = +85ºC 3.5 3.0 TA = +25ºC 2.5 2.0 1.5 TA = -40ºC 1.0 0.0 6 5 toc05 TA = +85ºC 3.5 3.0 TA = +25ºC 2.5 2.0 1.5 TA = -40ºC 1.0 VIN1 = VIN2 = UNCONNECTED V/EN1\ = V/EN2\ = 0V 0 V/EN2\ = 0V 0 1 1 2 3 4 5 OUT SUPPLY VOLTAGE (V) 6 1.5 VIN1 = 3.3V VIN1 = 4.2V 1.0 VIN1 = 5V 0.5 0.0 ILOAD = 1A NORMALIZED TO 4.2V, TA=+25ºC -40 -15 10 35 TEMPERATURE (ºC) 60 6 TA = +85ºC, VIN1 = VIN2 = UNCONNECTED 4.0 TA = +25ºC, VIN1 = VIN2 = UNCONNECTED 3.5 TA = -40ºC, VIN1 = VIN2 = UNCONNECTED 3.0 2.5 2.0 1.5 1.0 TA = +85ºC, VIN1 = VIN2 = 5V TA = -40ºC, VIN1 = VIN2 = 5V 0.5 TA = +25ºC, VIN1 = VIN2 = 5V 0 1 2 3 4 5 6 OUT SUPPLY VOLTAGE (V) VIN1 = 1.6V 2.0 5 V/EN1\ = V/EN2\ = 1.8V 4.5 0.0 6 2 3 4 IN2 SUPPLY VOLTAGE (V) OUT SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE toc06 5.0 NORMALIZED IN1-OUT ON-RESISTANCE vs. TEMPERATURE toc08 2.5 NORMALIZED TO 4.2V, 1A 4 5 4.0 0.0 NORMALIZED IN1-OUT ON-RESISTANCE vs. CURRENT toc07 7 4 OUT SUPPLY CURRENT vs. OUT VOTAGE IN2 SUPPLY VOLTAGE (V) 8 3 4.0 0.5 TA = +25ºC, VIN2=VOUT= 5V 0.5 TA = +25ºC, VIN1=VOUT=5V 0 2.5 4.5 TA = +25ºC, VIN1=VOUT=UNCONNECTED 3.5 3.0 5.0 TA = +85ºC, VIN1=VOUT=UNCONNECTED 4.0 TA = -40ºC, VIN2=VOUT=UNCONNECTED IN1 SUPPLY VOLTAGE (V) V/EN1\ = V/EN2\ = 1.8V 4.5 TA = +25ºC, VIN2=VOUT=UNCONNECTED 3.5 0.0 IN2 SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE toc04 5.0 IN2 SHUTDOWN SUPPLY CURRENT (µA) 1 TA = +85ºC, VIN2=VOUT=UNCONNECTED 4.0 toc03 4.5 OUT SHUTDOWN SUPPLY CURRENT (µA) 3.0 V/EN1\ = V/EN2\ = 1.8V 4.5 IN2 SUPPLY CURRENT vs. SUPPLY VOLTAGE 5.0 85 NORMALIZED IN2-OUT ON-RESISTANCE vs. CURRENT toc09 8 NORMALIZED IN2-OUT ON-RESISTANCE 4.0 IN1 SHUTDOWN SUPPLY CURRENT vs. SUPPLY VOLTAGE toc02 5.0 OUT SUPPLY CURRENT (µA) IN1 SUPPLY CURRENT (µA) 4.5 toc01 IN2 SUPPLY CURRENT (µA) IN1 SUPPLY CURRENT vs. SUPPLY VOLTAGE 5.0 NORMALIZED TO 4.2V, 1A 7 6 5 4 VIN2 = 1.6V 3 2 1 0 VIN2 = 3V VIN2 = 3.3V VIN2 = 5V 0 1 2 3 VIN2 = 4.2V 4 5 6 CURRENT (A) Maxim Integrated │  5 MAX14714 Compact 6A Smart Power Path Selector Typical Operating Characteristics (continued) (CIN1,IN2 = 0.1µF, COUT = 100µF, TA = +25°C, unless otherwise noted.) NORMALIZED IN2-OUT ON-RESISTANCE vs. TEMPERATURE toc10 80 70 1.5 VIN2 = 4.2V VIN2 = 3.3V 1.0 VIN2 = 5V 0.5 0.0 ILOAD = 1A NORMALIZED TO 4.2V, TA=+25ºC -40 -15 10 35 60 50 20 10 0 85 VIN1 = 2.7V 30 -40 -15 IN2-IN1 COMPARATOR RISING THRESHOLD vs. TEMPERATURE toc13 600 VIN1 = 4.3V 500 400 VIN1 = 3V 300 200 100 0 -40 -15 10 35 35 60 1.5 VIN1 = 2.7V 1.0 0.5 0.0 85 VIN1 = 4.2V 2.0 RLOAD = 10Ω CLOAD = 0F -40 TEMPERATURE (ºC) IN2-IN1 COMPARATOR FALLING THRESHOLD (mV) IN2-IN1 COMPARATOR RISING THRESHOLD (mV) TEMPERATURE (ºC) 10 60 85 0 toc12 2.5 VIN1 = 4.2V 60 40 SWITCH TURN-OFF TIME vs. TEMPERATURE 3.0 SWITCH TURN-OFF TIME (µs) VIN2 = 1.6V 2.0 SOFT- START TURN-ON TIME (µs) NORMALIZED IN2-OUT ON-RESISTANCE 2.5 SOFT-START TURN-ON TIME vs. TEMPERATURE toc11 -15 10 35 60 85 TEMPERATURE (ºC) IN2-IN1 COMPARATOR FALLING THRESHOLD vs. TEMPERATURE toc14 SOFT-START TURN-ON WAVEFORM toc15 2V/div V/EN1\ -100 4.3V VIN1 -200 -300 VIN1 = 3V 5V/div IIN1 5A/div VOUT 5V/div -400 VIN1 = 4.3V -500 -600 -40 TEMPERATURE (ºC) -15 10 35 60 85 20µs/div TEMPERATURE (ºC) SWITCH-OFF WAVEFORM SWITCHOVER WAVEFORM toc16 SWITCHOVER WAVEFORM toc17 toc18 2V/div V/EN1\ 4V VIN1 4.3V 5V/div VIN1 1A/div 5V/div RLOAD = 10Ω CLOAD = 0F 2µs/div www.maximintegrated.com 5V/div 5V/div 4.6V VIN2 5V/div 4.6V 4.6V 200mV/div VOUT VOUT 4V VIN1 4.6V VIN2 IIN1 5V/div 4V RLOAD = 10Ω 20µs/div 200mV/div VOUT 4V RRLOAD = 10Ω LOAD = 10Ω 20ms/div Maxim Integrated │  6 MAX14714 Compact 6A Smart Power Path Selector Typical Operating Characteristics (continued) (CIN1,IN2 = 0.1µF, COUT = 100µF, TA = +25°C, unless otherwise noted.) LATCHOFF WAVEFORM SIMULTANEOUS STARTUP toc19 4V toc20 VIN1 5V/div VIN2 5V/div IIN1 5A/div IIN2 5A/div VOUT RRLOAD = 10Ω 5V/div LOAD = 10Ω 5V/div VIN1 4.6V VIN2 5V/div VOUT 2V/div RLOAD = 10Ω 40µs/div 20ms/div IN1 AND IN2 FROM SAME SOURCE Bump Configuration TOP VIEW (BUMPS ON BOTTOM) 1 2 3 4 5 MAX14714 + A EN1 OUT OUT OUT EN2 IN1 IN1 OUT IN2 IN2 IN1 IN1 GND IN2 IN2 B C Bump Description BUMP NAME A1 EN1 Active-Low Enable Input for IN1, Switch 1. A2, A3, A4, B3 OUT Common Switch Output. A5 EN2 Active-Low Enable Input for IN2, Switch 2. B1, B2, C1, C2 IN1 Power Input 1. B4, B5, C4, C5 IN2 Power Input 2. C3 GND www.maximintegrated.com FUNCTION Ground. Maxim Integrated │  7 MAX14714 Detailed Description The MAX14714 compact 6A smart power path selector device features a low, 11mΩ (typ) RON internal FET and provides the system power from two separate power sources. The device has two switches in SPDT configuration, with a bidirectional current-blocking capability when the switch is turned off. The MAX14714 features two individual enable inputs to control each power path. Each enable input controls the corresponding path as an independent switch. However, when both paths are enabled, the internal comparator controls the path based on voltage at input nodes to autoselect the higher voltage input. Enable Inputs EN1 and EN2 active-low enable inputs control the two switches position. (Table 1) Soft-Start When a switch is enabled, and if the voltage difference between IN_ and OUT is greater than 0.95V (typ), the device performs soft-start for 5ms (typ) to prevent high inrush current. During soft-start, the output dV/dt is limited to 60mV/µs (typ). The soft-start feature is bidirectional for either IN_ or OUT supply. Auto-Selection When both EN1 and EN2 are low, the device is in autoselection mode and the switch with higher voltage on input is turned on. A difference of VTHR_IN (500mV, typ) www.maximintegrated.com Compact 6A Smart Power Path Selector Table 1. Enable Control EN1 EN2 SWITCH STATUS 0 0 Auto Selection: switch 1 or switch 2 on* 1 0 Switch 2 on, switch 1 off 0 1 Switch 1 on, switch 2 off 1 1 Switch 1 and switch 2 both off *When voltages on IN1 and IN2 are about the same, the device selects IN2 as the supply source. Please refer to AutoSelection for details. between IN1 and IN2 is required in order to switch to the higher supply voltage. Once the device selects the switch, the switch is on as long as the other input is not higher by VTHR_IN. If frequent jittering is expected from the power source, manual selection is recommended once the power source is stabilized. If auto-selection latchoff is preferred, please contact the factory for a latchoff option. In case voltages on IN1 and IN2 are about the same, and EN1 and EN2 both go from high to low, the device selects IN2 as the supply source. After this initial choice, normal auto-selection resumes. Bidirectional Current-Blocking The bidirectional FET switch prevents current flowing from either side when the switch is off. Maxim Integrated │  8 MAX14714 Compact 6A Smart Power Path Selector Ordering Information PART ENABLE POLARITY TEMP RANGE BUMP-PACKAGE MAX14714EWL+ ACTIVE-LOW -40ºC to +85ºC 15 WLP +Denotes a lead(Pb)-free/RoHS-compliant package. Chip Information PROCESS: BiCMOS www.maximintegrated.com Package Information For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE PACKAGE CODE OUTLINE NO. LAND PATTERN NO. 15 WLP W151E2+1 21-1031 Refer to Application Note 1891 Maxim Integrated │  9 MAX14714 Compact 6A Smart Power Path Selector Revision History REVISION NUMBER REVISION DATE 0 9/14 DESCRIPTION Initial release PAGES CHANGED — For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. 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