ADP5350 - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADP5350
Manufacturer

ADI
ChipWorker Part#

CW983378631
Description

Advanced Battery Management PMIC with Inductive Boost LED and Three LDO Regulators
Documentation

Datasheet

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ADP5350 Specifications

Attribute	Attribute Value

Part Number	ADP5350
Manufacturer	ADI
ChipWorker Part#	CW983378631
Documentation	Datasheet
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Product Lifecycle Status	Recommended for New Designs

Product Description

Product Details
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.
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.
Applications
Rechargeable Li-Ion and Li-Ion polymer battery-powered devices
Portable consumer devices
Portable medical devices
Portable instrumentation devices
Wearable devices
### Features and Benefits
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

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