BQ24751 datasheet(3/39 Pages) TI | Host-controlled Multi-chemistry Battery Charger with System Power Selector, AC Over-Power Protection, and Programmable OVP

3 page

www.ti.com

VREF

R1432kW

66.5

10kW

R3422kW

R571kW

RAC

RSR

(1) Pull-uprailcouldbeeitherVREForothersystemrail .

(2) SRSET/ACSET couldcomefromeitherDACorresistordividers .

Q2 (ACFET)

SI4435

Q3(BATFET)

SI4435

ACN

ACP

ACDRV

ACDET

ACGOOD

PVCC

BATDRV

HIDRV

BTST

REGN

LODRV

PGND

SRP

SRN

PACK+

PACK-

SYSTEM

ADAPTER+

ADAPTER-

ACGOOD

AGND

bq24751

FDS6680A

BAT54

BAT

OVPSET

LEARN

ACOP

Q1 (ACFET)

SI4435

0.1 F

0.010 W

1 F

10 F

0.010 W

C12

10 F

0.1 F

C13

0.1 F

C11

10 F

0.1 F

C15

0.1 F

C16

0.47 F

8.2 H

PowerPad

SRSET

ACSET

VREF

CELLS

CHGEN

VDAC

VADJ

GPIO

ADC

IADAPT

HOST

1 F

100pF

66.5kW

100kW

43kW

100kW

C19

10 F

C18

10 F

C17

10 F

R10100kW

C10

1 F

PACKAGE THERMAL DATA

bq24751

SLUS734 – DECEMBER 2006

VIN = 20 V, VBAT = 3-cell Li-Ion, Icharge = 3 A, Iadapter_limit = 4 A

Figure 2. Typical System Schematic, Voltage and Current Programmed by Resistor

ORDERING INFORMATION

Part number

Package

Ordering Number

Quantity

(Tape and Reel)

bq24751RHDR

3000

bq24751

28-PIN 5 x 5 mm QFN

bq24751RHDT

250

PACKAGE

TA = 70°C POWER RATING

DERATING FACTOR ABOVE TA = 25°C

QFN – RHD(1)(2)

°C/W

2.36 W

0.028 W/

°C

(1)

For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI

Web site at www.ti.com.

(2)

This data is based on using the JEDEC High-K board and the exposed die pad is connected to a Cu pad on the board. This is

connected to the ground plane by a 2x3 via matrix.

Submit Documentation Feedback

Número de Pieza	Descripción de Componentes	Html View	Fabricante
BQ24750	Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection	1 2 3 4 5 More	Texas Instruments
BQ24750_07	Host-controlled Multi-chemistry Battery Charger with Integrated System Power Selector and AC Over-Power Protection	1 2 3 4 5 More	Texas Instruments
BQ24740_07	Host-controlled Multi-chemistry Battery Charger with Low Input Power Detect	1 2 3 4 5 More	Texas Instruments
BQ24740	Host-controlled Multi-chemistry Battery Charger with Low Input Power Detect	1 2 3 4 5 More	Texas Instruments
MAX1909	Multichemistry Battery Charger with Automatic System Power Selector	1 2 3 4 5 More	Maxim Integrated Products
BQ24721_07	ADVANCED MULTI-CHEMISTRY AND MULTI-CELL SYNCHRONOUS SWITCH-MODE CHARGER AND SYSTEM POWER SELECTOR	1 2 3 4 5 More	Texas Instruments
MAX8600	Single-/Dual-Input 1-Cell Li+ Chargers with OVP Protection and Programmable Charge Timer	1 2 3 4 5 More	Maxim Integrated Products
MAX1363	4-Channel 12-Bit System Monitors with Programmable Trip Window and SMBus Alert Response	1 2 3 4 5 More	Maxim Integrated Products
ISL1209_06	Low Power RTC with Battery Backed SRAM and Event Detection	1 2 3 4 5 More	Intersil Corporation
ISL12020	Low Power RTC with VDD Battery Backed SRAM and Embedded Temp Compensation ±5ppm with Auto Day Light Saving	1 2 3 4 5 More	Intersil Corporation

Número de Pieza relacionado

Enlace URL

Patrocinador de Alldatasheet