BQ24352 Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 7.1 Input OVP | TI.com

BQ24352 (ACTIVE) Over-Voltage and Over-Current Charger Front-End Protection IC With FET, 7.1 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

Parametrics

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Part number Order Function Number of series cells (Min) Number of series cells (Max) Communication interface Features Typical operating current (Typ) (uA) Rating Vin (Max) (V) Package Group Approx. price (US$)
BQ24352 Order now Charger Front-End Protection     1     1     No Communication     Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)    
400     Catalog     30     WSON | 8     0.40 | 1ku    
BQ24350 Samples not available Charger Front-End Protection     1     1     No Communication     Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)    
400     Catalog     30     WSON | 8     0.40 | 1ku    
BQ24351 Order now Charger Front-End Protection     1     1     No Communication     Over-current (OCP)
Over-voltage (OV)
Short-circuit Discharge (SCD)    
400     Catalog     30     WSON | 8     0.40 | 1ku