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Analog Devices Semiconductor Electronic Components Datasheet

ADP5350 Datasheet

Advanced Battery Management PMIC

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Data Sheet
Advanced Battery Management PMIC with
Inductive Boost LED and Three LDO Regulators
ADP5350
FEATURES
Switching mode USB battery charger
High accuracy and programmable charge terminal voltage
and charge current
3 MHz buck for high efficiency and small footprint
Tolerant input voltage from −0.5 V to +20 V (USB VVBUSx)
Power path control allows system to operate with dead or
missing battery
Compliant with JEITA charge temperature specification
Voltage-based state of charge (SOC) calculation algorithm
Extra low quiescent current in sleep mode
Battery impedance chemistry (Li-Ion) compensation
Battery temperature compensation
No need for external sense resistor
Boost regulator with 5-channel LED driver
Support up to 4 LED in series or in parallel
5 independent programmable LED current sinks
64 programmable LED current levels (up to 20 mA)
Programmable on and off timer for LED blinking
Adaptive headroom control to maximize the efficiency
Three 150 mA linear LDO regulators
Ultralow IQ with zero load at 1 µA typical for LDO1
Optional load-switch full turn-on mode
Full I2C programmability with dedicated interrupt pin
APPLICATIONS
Rechargeable Li-Ion and Li-Ion polymer battery-powered
devices
Portable consumer devices
Portable medical devices
Portable instrumentation devices
Wearable devices
GENERAL DESCRIPTION
The ADP5350, a power management IC (PMIC), combines one
high performance buck regulator for single Li-Ion/Li-Ion
polymer battery charging, a fuel gauge, a highly programmable
boost regulator for LED backlight illumination, and three 150 mA
LDO regulators.
The ADP5350 operates in trickle charge mode and in constant
current (CC) and constant voltage (CV) fast charge mode. It
features an internal field effect transistor (FET) that permits
battery isolation on the system power side.
The ADP5350 fuel gauge is a space-saving and low current
consuming solution. It is optimal for rechargeable Li-Ion battery-
powered devices, and features a voltage-based, battery SOC
measurement function.
Rev. B
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responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
TYPICAL APPLICATION CIRCUIT
USB 5V
VBUSA
VBUSB
C1
2.2µF
CFL1
C2
4.7µF
CFL2
C11
2.2µF
SCL
SDA
INT
PGOOD
VISOS
BATOK
VIN4
C9
4.7µF
L2 SW4
4.7µH PGND4
C5
2.2µF
VIN123
VOUT1
C6
1µF
VOUT2
C7
1µF
VOUT3
C8
1µF
ADP5350
3MHz
BUCK
I2C
AND
GPIOs
CHARGE
CONTROL
AND
FUEL
GAUGE
HIGH VOLTAGE
BOOST
150mA LDO
(OR LOAD SWITCH)
150mA LDO
(OR LOAD SWITCH)
150mA LDO
(OR LOAD SWITCH)
SW1A
SW1B
L1 VISOS
1.5µH
PGND1A C3
PGND1B 10µF
ISOS
ISOB
BSNS
Li-Ion
THR
C4
+ 10µF
RNTC
VOUT4
FB4
C10
4.7µF
D1 LED1
D2 LED3
D3 LED5
D4
D5
LED2
LED4
LED6
AGND
Figure 1.
The ADP5350 boost regulator operates at a 1.5 MHz switching
frequency. It can be operated as a constant voltage regulator or
as a supplemental constant current regulator for multiple LED
backlight drivers.
The ADP5350 LED drivers can support a wide range of LED
backlight configurations, either multiple LEDs in parallel or in
series.
The ADP5350 low dropout (LDO) regulators are optimized to
operate at low shutdown current and quiescent current to extend
battery life. The device also operates as a load switch that can be
fully turned off or on.
The I2C-compatible interface enables the programmability of all
parameters, including status bit readback for operation monitoring
and safety control.
The ADP5350 operates over the −40°C to +125°C junction
temperature range and is available in a 32-lead, 5 mm × 5 mm
LFCSP package and a 32-ball, 3 mm × 3 mm WLCSP package.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 ©2017–2018 Analog Devices, Inc. All rights reserved.
Technical Support
www.analog.com


Analog Devices Semiconductor Electronic Components Datasheet

ADP5350 Datasheet

Advanced Battery Management PMIC

No Preview Available !

ADP5350
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Typical Application Circuit ............................................................. 1
Revision History ............................................................................... 2
Detailed Functional Block Diagram .............................................. 3
Specifications..................................................................................... 4
Battery Charger Specifications ................................................... 4
Battery Fuel Gauge Specifications .............................................. 6
Boost and LED Driver Specifications ........................................ 7
LDO Specifications ...................................................................... 8
Recommended Input and Output Capacitance and
Inductance Specifications.......................................................... 10
I2C-Compatible Interface Timing Specifications ................... 11
Absolute Maximum Ratings.......................................................... 12
Thermal Resistance .................................................................... 12
ESD Caution................................................................................ 12
Pin Configuration and Function Descriptions........................... 13
Typical Performance Characteristics ........................................... 15
Typical Waveforms ..................................................................... 19
Theory of Operation ...................................................................... 21
Battery Charger Overview......................................................... 21
Charger Modes............................................................................ 22
REVISION HISTORY
5/2018—Rev. A to Rev. B
Changes to Table 1............................................................................ 4
Changes to Table 3............................................................................ 7
Changes to Table 4............................................................................ 8
Change to Battery Pack Thermistor Input Section .................... 24
Change to Shutdown Current, Table 15 ...................................... 27
Changes to Figure 50...................................................................... 31
Change to Address 0x0C, Table 18............................................... 37
Change to Bits[1:0], Table 23 ........................................................ 41
Change to Bit 4 Mnemonic, Table 70........................................... 53
Updated Outline Dimensions ....................................................... 63
11/2017—Rev. 0 to Rev. A
Added CB-32-1 .............................................................. Throughout
Change to General Description ...................................................... 1
Data Sheet
Battery Isolation FET................................................................. 23
Battery Detection ....................................................................... 23
Battery Temperature .................................................................. 24
Battery Charger Operational Flowchart.................................. 26
Battery Voltage-Based Fuel Gauge ........................................... 26
Flowchart of SOC Calculation.................................................. 28
Boost and White LED Drivers.................................................. 29
Linear Low Dropout (LDO) Regulators.................................. 33
Thermal Management ............................................................... 34
I2C Interface .................................................................................... 35
I2C Addresses .............................................................................. 35
SDA and SCL Pins...................................................................... 35
Default Reset ............................................................................... 35
Interrupts..................................................................................... 36
Control Register Map..................................................................... 37
Register Bit Descriptions........................................................... 39
Applications Information .............................................................. 58
External Components................................................................ 58
PCB Layout Guidelines.............................................................. 60
Typical Application Circuits ..................................................... 61
Factory-Programmable Options .................................................. 62
Outline Dimensions ....................................................................... 63
Ordering Guide .......................................................................... 63
Changes to Table 1.............................................................................3
Changes to Table 4.............................................................................8
Changes to Figure 4 Caption and Table 9 Title .......................... 13
Added Figure 5; Renumbered Sequentially ................................ 14
Added Table 10; Renumbered Sequentially ................................ 14
Change to Figure 15 Caption........................................................ 16
Change to Figure 23 Caption........................................................ 17
Change to Figure 24 Caption........................................................ 18
Changes to Figure 59...................................................................... 60
Updated Outline Dimensions....................................................... 61
Changes to Ordering Guide .......................................................... 61
2/2017—Revision 0: Initial Version
Rev. B | Page 2 of 63


Part Number ADP5350
Description Advanced Battery Management PMIC
Maker Analog Devices
Total Page 30 Pages
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