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Details for BQ24232HRGTT by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Battery Management
BQ24232HRGTT
Buy Directly from Texas Instruments (500 in stock) $1.0100
BATTERY CHARGER LI-ION 0.5A VQFN-16
BQ24232HRGTT image

BQ24232HRGTT by Texas Instruments

BATTERY CHARGER LI-ION 0.5A VQFN-16
Features
28-V Input Rating With Overvoltage Protection
4.35-V Battery Regulation
Fully Compliant USB Charger u2013 Selectable 100-mA and 500-mA Maximum Input Current u2013 100-mA Maximum Current Limit Ensures Compliance to USB-IF Standard u2013 Input-based Dynamic Power Management (VINu2013 DPM) for Protection Against Poor USB Sources
Integrated Dynamic Power-Path Management (DPPM) Function Simultaneously and Independently Powers the System and Charges the Battery
NTC Thermistor Input
Programmable Input Current Limit up to 500 mA for Wall Adapters
Programmable Precharge and Fast-Charge Safety Timers
Programmable Termination Current (bq24232H)
Proprietary Start-up Sequence Limits Inrush Current
Reverse Current, Short-Circuit, and Thermal Protection
Small 3-mm u00d7 3-mm 16-Lead QFN Package
Status Indication u2013 Charging/Done, Power Good
Supports up to 500-mA Charge Current With Current Monitoring Output (ISET)
Part Information
BQ24232HRGTT image
RoHS Compliant
Description
The bq2423xH series of devices are highly integrated Li-ion linear chargers and system power-path management devices targeted at space-limited portable applications. The devices operate from either a USB port or AC adapter and support charge currents from 25 mA to 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 bq2423xH to meet USB-IF inrush current specifications. Additionally, the input dynamic power management (VIN-DPM) prevents the charger from crashing poorly designed or incorrectly configured USB sources. The bq2423xH 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 feature enables instant system turnon even with a totally discharged battery. The powerpath management architecture also lets the battery supplement the system current requirements when the adapter cannot deliver the peak system currents, thus enabling the use of a smaller adapter.
Specifications
Battery Type:
Li-Ion
Input Voltage:
10.2V
Battery Charge Voltage:
4.35V
Charge Current Max:
500mA
Battery IC Case Style:
VQFN
No. of Pins:
16Pins
No. of Series Cells:
1
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 2 - 1 year
SVHC:
No SVHC (27-Jun-2018)
Alternate Descriptions
Battery Charger Li-Ion/Li-Pol 1500mA 4.5V 16-Pin QFN T/R Avnet America
Battery Charger Li-Ion/Li-Pol 1500mA 4.5V 16-Pin QFN T/R Avnet Europe
USB-Friendly Lithium Based battery charger With power-Path For 4.35V Batteries Texas Instruments