BQ20Z655-R1_13 datasheet(7/25 Pages) TI

7 / 25 page

bq20z655-R1

www.ti.com

SLUSAN9

– AUGUST 2011

RECOMMENDED OPERATING CONDITIONS (continued)

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

MIN

NOM

MAX

UNIT

VC(n)-VC(n+1); n = 1,2,3,4

VC1, VC2, VC3, VC4

VSS

VIN

Input voltage range

VC5

0.5

ASRN, ASRP

–0.5

0.5

PACK, PMS

V(GPOD)

Output voltage range

GPOD

I(GPOD)

Drain current(1)

GPOD

C(REG25)

2.5V LDO capacitor

REG25

µF

C(REG33)

3.3V LDO capacitor

REG33

2.2

µF

C(VCELL+)

Cell voltage output capacitor

VCELL+

0.1

µF

R(PACK)

PACK input block resistor(2)

PACK

Ω

(1)

Use an external resistor to limit the current to GPOD to 1 mA in high voltage application.

(2)

Use an external resistor to limit the inrush current PACK pin required.

ELECTRICAL CHARACTERISTICS

Over operating free-air temperature range (unless otherwise noted), TA = –40°C to 85°C, V(REG25) = 2.41 V to 2.59 V,

V(BAT) = 14 V, C(REG25) = 1 µF, C(REG33) = 2.2 µF; typical values at TA = 25°C (unless otherwise noted)

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX

UNIT

SUPPLY CURRENT

I(NORMAL)

Firmware running

550

µA

I(SLEEP)

Sleep mode

CHG FET on; DSG FET on

124

µA

CHG FET off; DSG FET on

µA

CHG FET off; DSG FET off

µA

I(SHUTDOWN)

Shutdown mode

0.1

µA

SHUTDOWN WAKE; TA = 25°C (unless otherwise noted)

Shutdown exit at VSTARTUP

I(PACK)

µA

threshold

SRx WAKE FROM SLEEP; TA = 25°C (unless otherwise noted)

Positive or negative wake

threshold with 1.00 mV, 2.25

V(WAKE)

1.25

mV, 4.5 mV and 9 mV

programmable options

V (WAKE) = 1 mV;

-0.7

0.7

I(WAKE)= 0, RSNS1 = 0, RSNS0 = 1;

V(WAKE) = 2.25 mV;

I(WAKE) = 1, RSNS1 = 0, RSNS0 = 1;

-0.8

0.8

I(WAKE) = 0, RSNS1 = 1, RSNS0 = 0;

V(WAKE_ACR)

Accuracy of V(WAKE)

V(WAKE) = 4.5 mV;

I(WAKE) = 1, RSNS1 = 1, RSNS0 = 1;

-1.0

1.0

I(WAKE) = 0, RSNS1 = 1, RSNS0 = 0;

V(WAKE) = 9 mV;

-1.4

1.4

I(WAKE) = 1, RSNS1 = 1, RSNS0 = 1;

Temperature drift of V(WAKE)

V(WAKE_TCO)

0.5

°C

accuracy

Time from application of

t(WAKE)

current and wake of

bq20z655-R1

WATCHDOG TIMER

tWDTINT

Watchdog start up detect time

250

500

1000

tWDWT

Watchdog detect time

100

150

µs

2.5V LDO; I(REG33OUT) = 0 mA; TA = 25°C (unless otherwise noted)

4.5

< VCC or BAT < 25 V;

V(REG25)

Regulator output voltage

I(REG25OUT) ≤ 16 mA;

2.41

2.5

2.59

TA = –40°C to 100°C

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