TPS65820
TPS65820 is SINGLE-CELL Li-ION BATTERY- AND POWER-MANAGEMENT IC manufactured by Texas Instruments.
ATURES
- BATTERY CHARGER
- plete charge management solution for single Li-Ion/Li-Pol cell with thermal foldback, dynamic power management and pack temperature sensing, supporting up to 1.5-A max charge current
- Programmable charge parameters for AC adapter and USB port operation
- INTEGRATED POWER SUPPLIES
- A total of 9 LDOs are integrated:
- Six adjustable output LDOs (1.25-V to 3.3-V)
- Two fixed-voltage LDOs (3.3-V)
- One fixed-voltage, always-on LDO (3.3-V)
- One RTC backup supply with low leakage
(3.1-V)
- Two 600-m A, programmable dc/dc buck converters (0.6-V to 3.4-V) with enable, standby mode operation and automatic low-power mode setting
- DISPLAY FUNCTIONS
- Two open-drain PWM outputs with programmable frequency and duty cycle. Can be used to control keyboard backlight, vibrator, or other external peripheral functions
- RGB LED driver with programmable flashing period and individual R/G/B brightness control
- Constant-current white LED driver, with programmable current level, brightness control, and over-voltage protection can drive up to 6 LEDs in series configuration
- SYSTEM MANAGEMENT
- Dual input power path function with input current limiting and OVP protection
- POR function with programmable masking monitors all integrated supplies outputs
- Software and hardware reset functions
- 8-channel integrated A/D samples system parameters with single conversion, peak detection, or averaging operating modes
- HOST INTERFACE
- Host can set system parameters and access system status using I2C interface
- Interrupt function with programmable masking signals system status modifiction to host
- 3 GPIO ports, programmable as drivers, integrated A/D trigger or buck converters standby mode control
APPLICATIONS
- PDAs
- Smart Phones
- MP3s
- Internet...
