This range of battery charger ICs from Analog Devices includes switching, linear and monitoring types. Within this range, some products feature constant current or constant voltage linear charging, stacked lithium monitoring or battery isolation and USB-based battery management. Typical applications for the battery charger ICs include: lithium ion battery monitoring, PV cell energy harvesting, wearable devices, portable technology and industrial monitoring, TEG energy harvesting, wireless sensors and electric/hybrid vehicles.
Feature
- 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
(Picture: Pinout)
