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RECOMMENDED OPERATING CONDITIONS

PACKAGE THERMAL DATA

ELECTRICAL CHARACTERISTICS

bq24740

SLUS736 – DECEMBER 2006

over operating free-air temperature range (unless otherwise noted)

MIN

NOM

MAX

UNIT

PH

–1

24

PVCC, ACP, ACN, SRP, SRN, BAT

0

24

REGN, LODRV

0

6.5

VREF

0

3.3

VDAC, IADAPT

0

3.6

Voltage range

V

ACSET, SRSET, ACDET, ISYNSET, LPMD, LPREF, CHGEN, CELLS,

0

5.5

EXTPWR, DPMDET

VADJ

0

6.5

BTST, HIDRV with respect to AGND and PGND

0

30

AGND, PGND

–0.3

0.3

Maximum difference voltage: ACP–ACN, SRP–SRN

5.5

Junction temperature range

–40

125

°C

Storage temperature range

–55

150

PACKAGE

θ

JA

39

°C/W

2.36W

0.028 W/

°C

(1)

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.

7.0 V

≤ V

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

OPERATING CONDITIONS

PVCC Input voltage operating range

5.0

24.0

V

CHARGE VOLTAGE REGULATION

BAT voltage regulation range

4V-4.512V per cell, times 2,3,4 cell

8

18

V

VDAC reference voltage range

2.6

3.6

V

VADJ voltage range

0

REGN

V

Charge voltage regulation accuracy

8 V, 8.4 V, 9.024 V

–0.5

0.5

12 V, 12.6 V, 13.536 V

–0.5

0.5

%

16 V, 16.8 V, 18.048 V

–0.5

0.5

Charge voltage regulation set to default to

VADJ connected to REGN, 8.4 V,

–0.5

0.5

%

4.2 V per cell

12.6 V, 16.8 V

CHARGE CURRENT REGULATION

Charge current regulation differential

0

100

mV

voltage range

SRSET voltage range

0

VDAC

V

–3

3

–5

5

Charge current regulation accuracy

%

–25

25

–33

33

7

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