BQ24721

synchronous battery pack charger, QFN , NMOS-NMOS, Synchronous Buck Converter, -0.3 V to 30 V

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Price:: US $3.68~5.56 / piece [Get Latest Price]

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	US $3.68~5.56

PartNumber:: BQ24721

Brand:: Texas Instruments - TI | Pack: QFN | D/C: 08+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
Delivery: 10-15 Business Days (ships out within 3 Business days)

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Products Upload time: 2012-08-22

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Part Number:BQ24721
US $3.68 - 5.56
YL-G709

US $65.00 - 68.00 / Piece
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Product Summary

The BQ24721 is a high efficiency synchronous battery pack charger with high level of integration for portable applications. This device implements a high performance analog front-end that interfaces to the system power management micro-controller through a simplified SBS-like SMBus interface. The dynamic power management (DPM) function of BQ24721 modifies the charge current depending on system load conditions, avoiding ac adapter overload.

Parametrics

BQ24721 absolute maximum ratings: (1)Supply voltage range: -0.3 V to 30 V at ACN, ACP, PVCC, ACDRV, SYNN, SYNP, SRP, SRN, BATDRV, BAT, BYPASS, SYS, VCC, -1 V to 30 V at PH, –0.3 V to 7 V at LODRV, REGN, FBO, EAI, EAO, ISYNSET, CHGEN, TS , VREF5, ACDET, IOUT, ALARM, SCL, SDA, –1 V to 36 V at BTST, HIDRV (with respect to AGND and PGND); (2)Maximum differential voltage: -0.3 V to 0.3 V; (3)Maximum difference voltage: 0.6 V; (4)Operating ambient temperature range: –40℃ to 85℃; (5)Maximum junction temperature: 150℃; (6)Storage temperature range: -65℃ to 150℃.

Features

BQ24721 features: (1)High Efficiency NMOS-NMOS Synchronous Buck Converter With User-Selectable 300 kHz or 500 kHz frequency; (2)bq24721C Offers Softer Turn-On, Stronger Turn-Off; (3)SBS-Like SMBus Interface for Control and Status Communications With Host; (4)Programmable Battery Voltage, Charge Current, and AC Adapter Current via SBS-Like SMBus Interface; (5)0.4% Charge Voltage Regulation Accuracy; (6)3% Charge Current Regulation Accuracy; (7)3% Adapter Current Regulation Accuracy Dynamic Power Management (DPM).