Datasheet Texas Instruments BQ24745

ManufacturerTexas Instruments
SeriesBQ24745
Datasheet Texas Instruments BQ24745

SMBus-Controlled Level 2 Multi-Chemistry Battery Charger With Input Current Detect Comparator

Datasheets

SMBus-Controlled Multi-chemistry Battery Charger With Input Current datasheet
PDF, 1.8 Mb, Revision: D, File published: Oct 5, 2011
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Prices

Status

BQ24745RHDRBQ24745RHDRG4BQ24745RHDTBQ24745RHDTG4
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesYesNoNo

Packaging

BQ24745RHDRBQ24745RHDRG4BQ24745RHDTBQ24745RHDTG4
N1234
Pin28282828
Package TypeRHDRHDRHDRHD
Industry STD TermVQFNVQFNVQFNVQFN
JEDEC CodeS-PQFP-NS-PQFP-NS-PQFP-NS-PQFP-N
Package QTY30003000250250
CarrierLARGE T&RLARGE T&RSMALL T&RSMALL T&R
Device Marking24745247452474524745
Width (mm)5555
Length (mm)5555
Thickness (mm).9.9.9.9
Pitch (mm).5.5.5.5
Max Height (mm)1111
Mechanical DataDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsBQ24745RHDR
BQ24745RHDR
BQ24745RHDRG4
BQ24745RHDRG4
BQ24745RHDT
BQ24745RHDT
BQ24745RHDTG4
BQ24745RHDTG4
Absolute Vin (safety rating)(Max)(, V30303030
Battery Charge Voltage(Max), V24242424
Cell ChemistryLi-Ion/Li-PolymerLi-Ion/Li-PolymerLi-Ion/Li-PolymerLi-Ion/Li-Polymer
Charge Current(Max), A10101010
Control InterfaceSMBusSMBusSMBusSMBus
Control TopologySwitch-Mode BuckSwitch-Mode BuckSwitch-Mode BuckSwitch-Mode Buck
Number of Series Cells2,3,42,3,42,3,42,3,4
Operating Vin(Max), V24242424
Operating Vin(Min), V7777
Package GroupVQFNVQFNVQFNVQFN
Package Size: mm2:W x L, PKG28VQFN: 25 mm2: 5 x 5(VQFN)28VQFN: 25 mm2: 5 x 5(VQFN)28VQFN: 25 mm2: 5 x 5(VQFN)28VQFN: 25 mm2: 5 x 5(VQFN)
Special FeaturesPower PathPower PathPower PathPower Path
USB FeatureN/AN/AN/AN/A

Eco Plan

BQ24745RHDRBQ24745RHDRG4BQ24745RHDTBQ24745RHDTG4
RoHSCompliantCompliantCompliantCompliant

Application Notes

  • How to Use bq24745 for Charging Single-Cell Li-Ion Battery
    PDF, 195 Kb, File published: Nov 25, 2008
    The bq24745 Evaluation Module (EVM) is designed for 2- to 4-cell notebook battery-charger applications. However, the bq24745 also supports single-cell, battery-charger applications. This application report describes how to change bq24745EVM components for meeting single-cell applications. One example for 5-V input, single-cell application was tested based on a modified bq24745EVM.
  • Li-ion battery-charger solutions for JEITA compliance
    PDF, 506 Kb, File published: Jan 29, 2010
  • How to Review a Multicell Switching Charger Schematic
    PDF, 196 Kb, File published: Sep 21, 2011
    This application report provides a checklist for reviewing a switching charger schematic and explains each item in the list.
  • Q1 2010 Issue Analog Applications Journal
    PDF, 2.6 Mb, File published: Jan 29, 2010
  • Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 Chargers
    PDF, 132 Kb, File published: Oct 6, 2009
    The smart charger bq24747/765 is a high-efficiency, synchronous battery charger with an integrated input current comparator. This charger provides low component count for space constrained, multichemistry battery charging applications. SMBus input current, charge current, and input current digital-to-analog converters allow for very high regulation accuracies that the system power management micr

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> Battery Management Products> Battery Charger IC