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BQ24350
  • BQ24350

BQ24350

ACTIVE

Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 6.17 Input OVP

Texas Instruments BQ24350 Product Info

1 April 2026 3

Parameters

Rating

Catalog

Number of series cells (max)

1

Number of series cells (min)

1

Features

Integrated Charging FET, Overcurrent protection, Overvoltage, Short-circuit Discharge (SCD)

Function

Charger Front-End Protection

Operating current (typ) (µA)

400

Vin (max) (V)

30

Overvoltage protection

6.17

Operating temperature range (°C)

-40 to 85

Battery overvoltage protection (min) (V)

4.35

Battery overvoltage protection (max) (V)

4.35

Package

WSON (DSG)-8-4 mm² 2 x 2

Features

  • Robust Protection
    • Input Over-Voltage Protection
    • Input Over-Current Protection
    • Accurate Battery Over-Voltage Protection
    • Thermal Shutdown
    • Output Short-Circuit Protection
  • Integrated Charging FET
  • LDO Mode Operation
  • Current Limited Power Supply for Host Controller
  • Soft-Start to Prevent Inrush Currents
  • Soft-Stop to Prevent Voltage Spikes
  • 30V Maximum Input Voltage
  • Supports Up to 1A Load Current
  • Small 2mm × 2mm 8pin SON Package
  • APPLICATIONS
    • Mobile Phones
    • Low-Power Handheld Devices

  • Robust Protection
    • Input Over-Voltage Protection
    • Input Over-Current Protection
    • Accurate Battery Over-Voltage Protection
    • Thermal Shutdown
    • Output Short-Circuit Protection
  • Integrated Charging FET
  • LDO Mode Operation
  • Current Limited Power Supply for Host Controller
  • Soft-Start to Prevent Inrush Currents
  • Soft-Stop to Prevent Voltage Spikes
  • 30V Maximum Input Voltage
  • Supports Up to 1A Load Current
  • Small 2mm × 2mm 8pin SON Package
  • APPLICATIONS
    • Mobile Phones
    • Low-Power Handheld Devices

Description

The bq24350/2 is a highly integrated circuit designed to provide protection to Li-ion batteries from failures of the charging circuit. The IC continuously monitors the input voltage and the battery voltage. In case of an input over-voltage condition, the IC will turn off the internal power FET after a blanking time. If the battery voltage rises to unsafe levels during charging process, power is removed from the system. If the input current exceeds the over current threshold for a limited time, the IC will turn off the output power. The integrated charging FET can regulate the charge voltage and current according to the control from the host. The device can also provide a voltage source with over voltage and over current protection for host controller.

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