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BQ24040 Datasheet PDF

Part Series:BQ24040 Series
Description:1A, Single-Input, Single Cell Li-Ion and Li-Pol Battery Charger With Auto Start
Document:BQ24040DSQT Datasheet PDF (39 Pages)

BQ24040 - TI Specifications

TYPE
DESCRIPTION
Case/Package
SON-10
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BQ24040 - TI Function Overview

Description
The bq2404x series of devices are highly integrated Li-Ion and Li-Pol linear chargers devices targeted at
space-limited portable applications. The devices operate from either a USB port or AC adapter. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters.
Features
• Charging
– 1% Charge Voltage Accuracy
– 10% Charge Current Accuracy
– Pin Selectable USB 100mA and 500mA Maximum Input Current Limit
– Programmable Termination and Precharge Threshold, bq24040 and bq24045
– High voltage (4.35V) Chemistry Support with bq24045
• Protection
– 30V Input Rating; with 6.6V or 7.1V Input Overvoltage Protection
– Input Voltage Dynamic Power Management
– 125°C Thermal Regulation; 150°C Thermal Shutdown Protection
– OUT Short-Circuit Protection and ISET short detection
– Operation over JEITA Range via Battery NTC – 1/2 Fast-Charge-Current at Cold, 4.06V at Hot, bq24040 and bq24045
– Fixed 10 Hour Safety Timer, bq24040 and bq24045
• System
– Automatic Termination and Timer Disable Mode (TTDM) for Absent Battery Pack With Thermistor, bq24040 and bq24045
– Status Indication – Charging/Done
– Available in Small 2×2mm2 DFN-10 Package
– Integrated Auto Start Function for Production Line Testing, bq24041
Applications
• Smart Phones
• PDAs
• MP3 Players
• Low-Power Handheld Devices
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