Texas Instruments bq24707
The bq24707 and bq24707A devices are highefficiency, synchronous battery chargers, offering low component count for space-constrained, multichemistry battery charging applications. The IC uses the internal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current. The IC provides an IFAULT output to alarm if any MOSFET fault or input over current occurs.| Part No. | bq24707 |
|---|---|
| Datasheet | bq24707 Download |
| Manufacturer |  Texas Instruments |
| Description | 1-4 Cell Li+ Battery SMBus Charge Controller |
| Buy | Stock & Price |
FEATURES
●1 SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter With Programmable 615 kHz, 750 kHz, and 885 kHz Switching Frequency● Real-Time System Control on ILIM Pin to Limit Charge Current
● Enhanced Safety
FEATURES
for Overvoltage Protection, Overcurrent Protection, Battery, Inductor, and MOSFET Short-Circuit Protection● Programmable Input Current, Charge Voltage, Charge Current Limits – ±0.5% Charge Voltage Accuracy up to 19.2 V – ±3% Charge Current Accuracy up to 8.128 A – ±3% Input Current Accuracy up to 8.064 A – ±2% 20× Adapter Current or Charge Current Output Accuracy
● Programmable Adapter Detection and Indicator
● Independent Comparator With Internal Reference
● Integrated Soft-Start
● Integrated Loop Compensation
● AC Adapter Operating Range 5 V to 24 V
● 15-µA Off-State Battery Discharge Current
● 20-pin 3.5 mm × 3.5 mm QFN Package
● bq24707: ACOK Delay Default 1.3 s
● bq24707A: ACOK Delay Default 1.2 ms 3
DESCRIPTION
SMBus controlled input current, charge curr...
