BQ29312PW datasheet(3/39 Pages) TI1

Part #	BQ29312PW

Description	FOUR CELL LITHIUM-ION

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Manufacturer	TI1 [Texas Instruments]

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RECOMMENDED OPERATING CONDITIONS

bq29312

SLUS546E – MARCH 2003 – REVISED MARCH 2005

MIN

NOM

MAX

UNIT

Supply Voltage (BAT or PACK)

4.5(1)

25

V

VI(STARTUP)

Start-up voltage (PACK)

5.0

V

VC1, VC2, VC3, VC4

0

BAT

SR1, SR2

–0.5

0.5

VC5

–0.5

3.0

VI

Input voltage range

V

VCn – VC(n+1), (n = 1, 2, 3, 4 )

0

5.0

PMS

0

PACK

SLEEP

0

REG

VIH

0.8

×REG

REG

V

Logic level input voltage

SCLK, SDATA, WDI

0.2

×

VIL

0

REG

VIH

VPACK – 0.2

VPACK

V

PMS logic level

PMS

VIL

0

0.2

PMS pull up/pull down resistance

RPMS

100

1000

k

Ω

VO

Output voltage

OD

25

V

IO

Output current

XALERT, SDATA

200

µA

CELL

±10

µA

Input current,External 3.3 V REG

II

SLEEP

-0.5

1.0

µA

capacitor

C(REG)

4.7

µF

R(CELL)

100

Ω

Extend CELL output filter

C(CELL)

100

nF

OD

1

mA

IOL

Input frequency

WDI

32.768

kHz

WDI high time

2

28

µs

TA

Operating temperature

–25

85

°C

(1)

V(PACK) supply voltage must rise above start-up voltage on power up to enable the internal regulator which drives REG and TOUT as

required. Once V(PACK) is above the start-up voltage, it can fall down to the minimum supply voltage and still meet the specifications of

the bq29312.

3

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