Ti Bq24232ha Battery Power Charger Control Management Integrated Circuit IC Voltage Monitor Protector Electronic Components Chip

• shape: Flat
• Conductive Type: Bipolar Integrated Circuit
• Integration: MSI
• Technics: Semiconductor IC
• Rating: Catalog
• RoHS: Yes
• Reach: Yes
• Delivery Time: 1-3 Days
• Transport Package: Small Large T&R
• Specification: 9 mm² 3 x 3
• Trademark: TI
• HS Code: 8542399000
• Production Capacity: 60000

Product Description

Quality information

RatingCatalog

RoHSYes

REACHYes

Lead finish / Ball materialNIPDAU

MSL rating / Peak reflowLevel-2-260C-1 YEAR

 

Packaging information

Package | PinsVQFN (RGT) | 16

Operating temperature range (°C)-5 to 125

Package qty | Carrier250 | SMALL T&R

Features for the BQ24232HA

• Fully Compliant USB Charger
  • Selectable 100-mA and 500-mA Maximum
    Input Current
  • 100-mA Maximum Current Limit Ensures
    Compliance to USB-IF Standard
  • Input-based Dynamic Power Management
    (V_IN - DPM) for Protection Against Poor USB
    Sources
• 28-V Input Rating With Overvoltage Protection
• Integrated Dynamic Power-Path Management
  (DPPM) Function Simultaneously and
  Independently Powers the System and Charges
  the Battery
• Supports up to 500-mA Charge Current With
  Current Monitoring Output (ISET)
• Programmable Input Current Limit up to 500 mA
  for Wall Adapters
• Programmable Termination Current
• Programmable Precharge and Fast-Charge Safety
  Timers
• Reverse Current, Short-Circuit, and Thermal
  Protection
• NTC Thermistor Input
• Proprietary Start-Up Sequence Limits Inrush
  Current
• Status Indication - Charging/Done, Power Good
• Small 3 mm × 3 mm 16-Lead QFN Package

Description for the BQ24232HA

The bq24232HA device is a highly integrated Li-ion linear charger and system power-path management device targeted at space-limited portable applications. The device operates from either a USB port or ac adapter and supports charge currents between 25 mA and 500 mA. The high-input-voltage range with input overvoltage protection supports low-cost, unregulated adapters. The USB input current limit accuracy and start-up sequence allow the bq24232HA to meet USB-IF inrush current specification. Additionally, the input dynamic power management (V_IN - DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources.

The bq24232HA features dynamic power-path management (DPPM) that powers the system while simultaneously and independently charging the battery. The DPPM circuit reduces the charge current when the input current limit causes the system output to fall to the DPPM threshold, thus supplying the system load at all times while monitoring the charge current separately. This feature reduces the number of charge and discharge cycles on the battery, allows for proper charge termination, and enables the system to run with a defective or absent battery pack. Additionally, this enables instant system turn-on even with a totally discharged battery. The power-path management architecture also permits the battery to supplement the system current requirements when the adapter cannot deliver the peak system currents, enabling the use of a smaller adapter.

The battery is charged in three phases: conditioning, constant current, and constant voltage. In all charge phases, an internal control loop monitors the IC junction temperature and reduces the charge current if the internal temperature threshold is exceeded.

The charger power stage and charge current sense functions are fully integrated. The charger function has high-accuracy current and voltage regulation loops, charge status display, and charge termination. The input current limit and charge current are programmable using external resistors.