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TI BQ24725ARGRRRoHS

Manufacturer
TI
MPN
BQ24725ARGRR
LCSC Part #
C97041
Packaging
VQFN-20-EP(3.5x3.5)
Customer #
Key Attributes
Li+ Battery SMBus Charge Controller with N-Channel Power MOSFET Selector and Advanced Circuit Protection
Datasheetpdf iconTI BQ24725ARGRR
In-Stock: 4,185
4,185 In stock, ships now
Minimum: 1Multiple: 1Sales Unit: Piece
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QtyUnit PriceTotal Amount
1+$ 2.5552$ 2.56
10+$ 2.4025$ 24.03
30+$ 2.3066$ 69.20
100+$ 1.3645$ 136.45
500+$ 1.3207$ 660.35
1,000+$ 1.3012$ 1301.20
Standard Packaging3000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Battery Chargers
ManufacturerTI
PackagingVQFN-20-EP(3.5x3.5)
Output Voltage1.024V~19.2V
PFM Mode-
Function-
FeaturesAdaptive switching frequency;Soft-start;Overcurrent Protection;Digital control
Voltage - Supply4.5V~24V
Output Resistance-
Quiescent Current800uA
Operating Temperature0℃~+125℃
Frequency - Switching750kHz
Energy Efficiency-
Output Current8.128A
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Introduction

AI Translation

The bq24725A is a high-efficiency, synchronous battery charger, offering low component count for space-constraint, multi-chemistry battery charging applications. The bq24725A utilizes two charge pumps to separately drive n-channel MOSFETs (ACFET, RBFET and BATFET) for automatic system power source selection. SMBus controlled input current, charge current, and charge voltage DACs allow for very high regulation accuracies that can be easily programmed by the system power management micro-controller. The bq24725A uses internal input current register or external ILIM pin to throttle down PWM modulation to reduce the charge current. The bq24725A charges one, two, three or four series Li+ cells.

Features

AI Translation
  • SMBus Host-Controlled NMOS-NMOS Synchronous Buck Converter with Programmable 615kHz, 750kHz, and 885kHz Switching Frequencies
  • Automatic N-channel MOSFET Selection of System Power Source from Adapter or Battery Driven by Internal Charge Pumps
  • Enhanced Safety Features for Over Voltage Protection, Over Current Protection, Battery, Inductor and MOSFET Short Circuit Protectio
  • Programmable Input Current, Charge Voltage, Charge Current Limits
  • ±0.5% Charge Voltage Accuracy up to 19.2V ±3% Charge Current Accuracy up to 8.128A ±3% Input Current Accuracy up to 8.064A ±2% 20× Adapter Current or Charge Current Amplifier Output Accuracy
  • Programmable Battery Depletion Threshold, and Battery LEARN Function
  • Programmable Adapter Detection and Indicator
  • Integrated Soft Start
  • Integrated Loop Compensation
  • Real Time System Control on ILIM pin to Limit Charge Current
  • AC Adapter Operating Range 4.5V-24V
  • 5μA Off-State Battery Discharge Current
  • 0.65mA (0.8mA max) Adapter Standby Quiescent Current
  • 20-pin 3.5×3.5mm² VQFN Package

Applications

AI Translation
  • Portable Notebook Computers, UMPC, Ultra-Thin Notebook, and Netbook
  • Handheld Terminal
  • Industrial and Medical Equipment
  • Portable Equipment