This Product Specification contains functional descriptions, register tables, and electrical specifications, and is organized into chapters based on the modules that are available in this device.
Note: The HTML rendition of the Product Specification corresponds to the latest version only.
| Features: |
- 400 mA linear battery charger
- Linear charger for lithium-ion/lithium-polymer batteries
- Adjustable charge current from 20 mA to 400 mA
- Selectable termination voltage
- 4.1 V or 4.2 V on the standard VTERM device
- 4.25 V or 4.35 V on the high VTERM device
- Automatic trickle, constant current, and constant voltage charging
- Battery thermal protection
- Discharge current limitation
- JEITA compliant
- Li-ion/Li-polymer USB battery charger with a high efficiency buck regulator
- 800 nA - Typical quiescent current
- 460 nA - Shipping mode quiescent current
- Thermal protection
- Input regulator
- USB compatible current limit of 100 mA and 500 mA
- 4.1 V to 6.7 V input voltage range for normal operation
- 20 V overvoltage protection
- Reverse current protection
- 3.0 V to 5.5 V system voltage output
- USB port detection supporting the following types:
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- 1.8 V to 3.0 V, 150 mA step-down buck regulator
- Step-down buck regulator with up to 92% efficiency
- Automatic transition between hysteretic and pulse width modulation (PWM) modes
- Forced PWM mode for clean power operation
- Pin-selectable output voltage (1.8 V, 2.1 V, 2.7 V, 3.0 V)
- Soft start-up
- LED drivers for charger state indication
- 5 mA low side LED driver for charging indication
- 5 mA low side LED driver for error indication
- 2.3 V to 4.35 V battery operating input range
- Package options suitable for two layer PCB:
- 2.1x2.1 mm WLCSP package
- 4.0x4.0 mm QFN package
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| Applications: |
- Advanced wearables
- Health/fitness sensor and monitor devices
- Advanced computer peripherals and I/O devices
- Mouse
- Keyboard
- Multi-touch trackpad
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- Interactive entertainment devices
- Remote controls
- Gaming controllers
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