BQ24738RGRR BQ24738 BQ738 BQ 738 IC

Description

Key Features

• Cell Configuration: Supports 1 to 4 series Li-ion / Li-polymer cells

• Control Interface: SMBus interface for configuring charge voltage, charge current, and input current

• Switching Topology: Synchronous NMOS-NMOS buck converter with programmable switching frequencies: 615 kHz, 750 kHz, 885 kHz

• Input Voltage Range: 4.5 V to 24 V

• Absolute Maximum Input Voltage: 30 V

• Charge Voltage Range: 1.024 V to 19.2 V

• Maximum Charge Current: Up to 8.128 A (±3% accuracy)

• Input Current Regulation: Up to 8.064 A (±3% accuracy)

• Charge Voltage Regulation Accuracy: ±0.5% (up to 19.2 V)

• Off-State Battery Discharge Current: Approximately 5 µA

• Adapter Standby Quiescent Current: Approximately 0.65 mA (maximum 0.8 mA)

• Power Path Control: Automatic selection between adapter and battery via dual charge pumps

• Real-Time Current Limiting: Via ILIM pin

• Battery LEARN Function: Programmable battery depletion threshold and LEARN function for state-of-charge calibration

• Adapter Detection and Indicator: Programmable adapter detection and indicator

• Integrated Features: Loop compensation and soft-start

• Protection Features: Overvoltage, overcurrent, short-circuit, inductor fault, cycle-by-cycle current protection

• Watchdog Timer: Charging is suspended if the controller does not receive updated settings within a timeout window (~175 s by default)

• Package: 20-pin VQFN package (3.5 mm × 3.5 mm)

• Operating Temperature Range: –40 °C to +85 °C

Please Note:

• No Returns, Exchanges, or Warranty available.

• Kindly verify the model number and ensure it matches your product before placing an order.

• We guarantee premium quality.

• All items are thoroughly inspected prior to shipping.