Datasheet Texas Instruments BQ24745 — Datenblatt

Hersteller	Texas Instruments
Serie	BQ24745

SMBus-gesteuertes Multi-Chemie-Batterieladegerät der Stufe 2 mit Eingangsstromerkennungskomparator

Datenblätter

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PDF, 1.8 Mb, Revision: D, Datei veröffentlicht: Oct 5, 2011

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Preise

Status

	BQ24745RHDR	BQ24745RHDRG4	BQ24745RHDT	BQ24745RHDTG4
Lifecycle Status	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes	Yes	No	No

Verpackung

	BQ24745RHDR	BQ24745RHDRG4	BQ24745RHDT	BQ24745RHDTG4
N	1	2	3	4
Pin	28	28	28	28
Package Type	RHD	RHD	RHD	RHD
Industry STD Term	VQFN	VQFN	VQFN	VQFN
JEDEC Code	S-PQFP-N	S-PQFP-N	S-PQFP-N	S-PQFP-N
Package QTY	3000	3000	250	250
Carrier	LARGE T&R	LARGE T&R	SMALL T&R	SMALL T&R
Device Marking	24745	24745	24745	24745
Width (mm)	5	5	5	5
Length (mm)	5	5	5	5
Thickness (mm)	.9	.9	.9	.9
Pitch (mm)	.5	.5	.5	.5
Max Height (mm)	1	1	1	1
Mechanical Data	Herunterladen	Herunterladen	Herunterladen	Herunterladen

Parameter

Parameters / Models	BQ24745RHDR	BQ24745RHDRG4	BQ24745RHDT	BQ24745RHDTG4
Absolute Vin (safety rating)(Max)(, V	30	30	30	30
Battery Charge Voltage(Max), V	24	24	24	24
Cell Chemistry	Li-Ion/Li-Polymer	Li-Ion/Li-Polymer	Li-Ion/Li-Polymer	Li-Ion/Li-Polymer
Charge Current(Max), A	10	10	10	10
Control Interface	SMBus	SMBus	SMBus	SMBus
Control Topology	Switch-Mode Buck	Switch-Mode Buck	Switch-Mode Buck	Switch-Mode Buck
Number of Series Cells	2,3,4	2,3,4	2,3,4	2,3,4
Operating Vin(Max), V	24	24	24	24
Operating Vin(Min), V	7	7	7	7
Package Group	VQFN	VQFN	VQFN	VQFN
Package Size: mm2:W x L, PKG	28VQFN: 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 Features	Power Path	Power Path	Power Path	Power Path
USB Feature	N/A	N/A	N/A	N/A

Öko-Plan

	BQ24745RHDR	BQ24745RHDRG4	BQ24745RHDT	BQ24745RHDTG4
RoHS	Compliant	Compliant	Compliant	Compliant

Anwendungshinweise

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How to Use bq24745 for Charging Single-Cell Li-Ion Battery
PDF, 195 Kb, Datei veröffentlicht: 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.
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Li-ion battery-charger solutions for JEITA compliance
PDF, 506 Kb, Datei veröffentlicht: Jan 29, 2010
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How to Review a Multicell Switching Charger Schematic
PDF, 196 Kb, Datei veröffentlicht: Sep 21, 2011
This application report provides a checklist for reviewing a switching charger schematic and explains each item in the list.
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Q1 2010 Issue Analog Applications Journal
PDF, 2.6 Mb, Datei veröffentlicht: Jan 29, 2010
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Operating Fuel Gauge bq20z7x/8x/9x and SMBus-Like bq24745/47/65 Chargers
PDF, 132 Kb, Datei veröffentlicht: 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

Modellreihe

Serie: BQ24745 (4)

BQ24745RHDR BQ24745RHDRG4 BQ24745RHDT BQ24745RHDTG4

Herstellerklassifikation

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