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DATA SHEET
BQ25792 I2C Controlled, 1-4 Cell, 5-A Buck-Boost Battery Charger with Dual-Input Selector and USB PD 3.0 OTG Output
1 Features
- High power density, high
integration buck-boost charger for 1-4 cell batteries supporting any USB PD 3.0 profile
- Integrates four switching MOSFETs, BATFET
- Integrates input and charging current sensing
- Highly efficient
- 750-kHz or 1.5-MHz switching frequencies
- 5-A charging current
with 10-mA resolution
- 96.5% efficient: 16-V battery at 3A from 20V
- Supports a wide range of input sources
- 3.6-V to 24-V wide input operating voltage range with
30-V absolute maximum rating
- Maximum power tracking with input voltage dynamic power management
(VINDPM) up to 22 V and input current dynamic power management (IINDPM)
up to 3.3 A
- Detects USB BC1.2, SDP, CDP, DCP, HVDCP and non-standard adapters
- Dual-input power mux controller (optional) for source selection
- Narrow voltage DC (NVDC) power path management
- Powers USB port from battery (USB
OTG)
- 2.8-V to 22-V OTG output voltage with 10-mV resolution to support USB-PD PPS
- OTG output current regulation up to 3.32 A with 40-mA
resolution
- Flexible autonomous and I2C mode for optimal system performance
- Integrated 16-bit ADC for voltage, current, and temperature
monitoring
- Low battery quiescent current
- 21 µA for battery only operation
- 600 nA in Charger Shutdown Mode
- High accuracy
- +0.65% to -0.85% charge voltage
regulation for 2S-4S batteries
- ±5% charge current regulation
- ±5% input current regulation
- Safety
- Thermal regulation and thermal shutdown
- Input/battery OVP and OCP
- Converter MOSFETs OCP
- Charging safety timer
- Package