Advanced Battery Management PMIC with Inductive Boost LED and Three LDO Regulators Data Sheet ADP5350 FEATURES TYPICAL APPLICATION CIRCUIT Switching mode USB battery charger ADP5350 SW1A VBUSA L1 V High accuracy and programmable charge terminal voltage ISOS 1.5H 3MHz USB 5V SW1B VBUSB BUCK and charge current C1 PGND1A C3 CFL1 3 MHz buck for high efficiency and small footprint 2.2F 10F PGND1B C2 Tolerant input voltage from 0.5 V to +20 V (USB V ) VBUSx 4.7F CFL2 Power path control allows system to operate with dead or ISOS C11 missing battery 2.2F SCL Compliant with JEITA charge temperature specification CHARGE 2 I C CONTROL ISOB SDA Voltage-based state of charge (SOC) calculation algorithm AND AND INT FUEL GPIOs BSNS C4 GAUGE 10F Extra low quiescent current in sleep mode + PGOOD Li-Ion THR Battery impedance chemistry (Li-Ion) compensation BATOK V R ISOS NTC Battery temperature compensation VIN4 VOUT4 No need for external sense resistor L2 SW4 HIGH VOLTAGE C10 FB4 C9 BOOST 4.7H 4.7F Boost regulator with 5-channel LED driver 4.7F PGND4 Support up to 4 LED in series or in parallel VIN123 5 independent programmable LED current sinks C5 D1 LED1 LED2 VOUT1 2.2F 150mA LDO (OR LOAD SWITCH) 64 programmable LED current levels (up to 20 mA) C6 D2 LED3 LED4 1F Programmable on and off timer for LED blinking D3 VOUT2 LED5 LED6 150mA LDO Adaptive headroom control to maximize the efficiency (OR LOAD SWITCH) C7 1F D4 Three 150 mA linear LDO regulators D5 VOUT3 Ultralow I with zero load at 1 A typical for LDO1 150mA LDO Q (OR LOAD SWITCH) C8 Optional load-switch full turn-on mode 1F 2 Full I C programmability with dedicated interrupt pin AGND APPLICATIONS Figure 1. Rechargeable Li-Ion and Li-Ion polymer battery-powered devices Portable consumer devices Portable medical devices The ADP5350 boost regulator operates at a 1.5 MHz switching Portable instrumentation devices frequency. It can be operated as a constant voltage regulator or Wearable devices as a supplemental constant current regulator for multiple LED backlight drivers. GENERAL DESCRIPTION The ADP5350 LED drivers can support a wide range of LED The ADP5350, a power management IC (PMIC), combines one backlight configurations, either multiple LEDs in parallel or in high performance buck regulator for single Li-Ion/Li-Ion series. polymer battery charging, a fuel gauge, a highly programmable boost regulator for LED backlight illumination, and three 150 mA The ADP5350 low dropout (LDO) regulators are optimized to LDO regulators. operate at low shutdown current and quiescent current to extend battery life. The device also operates as a load switch that can be The ADP5350 operates in trickle charge mode and in constant fully turned off or on. current (CC) and constant voltage (CV) fast charge mode. It 2 features an internal field effect transistor (FET) that permits The I C-compatible interface enables the programmability of all battery isolation on the system power side. parameters, including status bit readback for operation monitoring and safety control. The ADP5350 fuel gauge is a space-saving and low current consuming solution. It is optimal for rechargeable Li-Ion battery- The ADP5350 operates over the 40C to +125C junction powered devices, and features a voltage-based, battery SOC temperature range and is available in a 32-lead, 5 mm 5 mm measurement function. LFCSP package and a 32-ball, 3 mm 3 mm WLCSP package. Rev. B Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. rights of third parties that may result from its use. Specifications subject to change without notice. No Tel: 781.329.4700 20172018 Analog Devices, Inc. All rights reserved. license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Technical Support www.analog.com Trademarks and registered trademarks are the property of their respective owners. TO MCU PROGRAMMABLE LED DRIVER 14797-001ADP5350 Data Sheet TABLE OF CONTENTS Features .............................................................................................. 1 Battery Isolation FET ................................................................. 23 Applications ....................................................................................... 1 Battery Detection ....................................................................... 23 General Description ......................................................................... 1 Battery Temperature .................................................................. 24 Typical Application Circuit ............................................................. 1 Battery Charger Operational Flowchart .................................. 26 Revision History ............................................................................... 2 Battery Voltage-Based Fuel Gauge ........................................... 26 Detailed Functional Block Diagram .............................................. 3 Flowchart of SOC Calculation .................................................. 28 Specifications ..................................................................................... 4 Boost and White LED Drivers .................................................. 29 Battery Charger Specifications ................................................... 4 Linear Low Dropout (LDO) Regulators .................................. 33 Battery Fuel Gauge Specifications .............................................. 6 Thermal Management ............................................................... 34 2 Boost and LED Driver Specifications ........................................ 7 I C Interface .................................................................................... 35 2 LDO Specifications ...................................................................... 8 I C Addresses .............................................................................. 35 Recommended Input and Output Capacitance and SDA and SCL Pins ...................................................................... 35 Inductance Specifications .......................................................... 10 Default Reset ............................................................................... 35 2 I C-Compatible Interface Timing Specifications ................... 11 Interrupts ..................................................................................... 36 Absolute Maximum Ratings .......................................................... 12 Control Register Map ..................................................................... 37 Thermal Resistance .................................................................... 12 Register Bit Descriptions ........................................................... 39 ESD Caution ................................................................................ 12 Applications Information .............................................................. 58 Pin Configuration and Function Descriptions ........................... 13 External Components ................................................................ 58 Typical Performance Characteristics ........................................... 15 PCB Layout Guidelines.............................................................. 60 Typical Waveforms ..................................................................... 19 Typical Application Circuits ..................................................... 61 Theory of Operation ...................................................................... 21 Factory-Programmable Options .................................................. 62 Battery Charger Overview......................................................... 21 Outline Dimensions ....................................................................... 63 Charger Modes............................................................................ 22 Ordering Guide .......................................................................... 63 REVISION HISTORY 5/2018Rev. A to Rev. B Changes to Table 1 ............................................................................. 3 Changes to Table 4 ............................................................................. 8 Changes to Table 1 ............................................................................ 4 Changes to Table 3 ............................................................................ 7 Changes to Figure 4 Caption and Table 9 Title .......................... 13 Changes to Table 4 ............................................................................ 8 Added Figure 5 Renumbered Sequentially ................................ 14 Change to Battery Pack Thermistor Input Section .................... 24 Added Table 10 Renumbered Sequentially ................................ 14 Change to Shutdown Current, Table 15 ...................................... 27 Change to Figure 15 Caption ........................................................ 16 Changes to Figure 50 ...................................................................... 31 Change to Figure 23 Caption ........................................................ 17 Change to Address 0x0C, Table 18 ............................................... 37 Change to Figure 24 Caption ........................................................ 18 Change to Bits 1:0 , Table 23 ........................................................ 41 Changes to Figure 59...................................................................... 60 Change to Bit 4 Mnemonic, Table 70 ........................................... 53 Updated Outline Dimensions ....................................................... 61 Updated Outline Dimensions ....................................................... 63 Changes to Ordering Guide .......................................................... 61 11/2017Rev. 0 to Rev. A 2/2017Revision 0: Initial Version Added CB-32-1 .............................................................. Throughout Change to General Description ...................................................... 1 Rev. B Page 2 of 63