Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 6.17 Input OVP - BQ24350

BQ24350 (ACTIVE)

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

 

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.

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

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Parametrics Compare all products in Battery Monitor, Protection & Authentication Solutions

 
Function
Number of Series Cells (Min)
Number of Series Cells (Max)
Input Over-Current Protection (A)
Input Over-Voltage Protection (V)
Communication Interface
Features
Typical Operating Current (Typ) (uA)
Rating
Vin (Max) (V)
Pin/Package
BQ24350 BQ24351 BQ24352
Charger Front-End Protection    Charger Front-End Protection    Charger Front-End Protection   
1    1    1   
1    1    1   
1.2    1.2    1.2   
6.17    10.5    7.1   
No Communication    No Communication    No Communication   
Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)   
Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)   
Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)   
400    400    400   
Catalog    Catalog    Catalog   
30    30    30   
8WSON    8WSON    8WSON