BQ29312ARTHR datasheet(3/35 Pages) TI

Part #	BQ29312ARTHR

Description	TWO-CELL, THREE-CELL, AND FOUR-CELL LITHIUM-ION OR LITHIUM-POLYMER BATTERY PROTECTION AFE

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Manufacturer	TI [Texas Instruments]

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RECOMMENDED OPERATING CONDITIONS

bq29312A

SLUS629A – JANUARY 2005 – REVISED AUGUST 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

VIL

0

0.2 × REG

VIH

V(PACK) – 0.2

V(PACK)

V

PMS logic level

PMS

VIL

0

0.2

PMS pullup/pulldown resistance

RPMS

100

1000

k

Ω

VO

Output voltage

OD

25

V

IO

Output current

XALERT, SDATA

200

µA

CELL

±10

µA

Input current,

II

SLEEP

-0.5

1.0

µA

External 3.3-V REG 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

–40

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 bq29312A.

3

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BQ29312ARTHR Datasheet(PDF) 3 Page - Texas Instruments

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