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| BQ34Z651_15 Datasheet, PDF (8/29 Pages) Texas Instruments – SBS 1.1-Compliant Gas Gauge | |||
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bq34z651
SLUSAL7 â AUGUST 2011
www.ti.com
ELECTRICAL CHARACTERISTICS
Over operating free-air temperature range (unless otherwise noted), TA = â40°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)
I(SLEEP)
Firmware running
Sleep Mode
CHG FET on; DSG FET on
CHG FET off; DSG FET on
550
µA
124
µA
90
µA
CHG FET off; DSG FET off
52
µA
I(SHUTDOWN)
Shutdown Mode
SHUTDOWN WAKE; TA = 25°C (unless otherwise noted)
I(PACK)
Shutdown exit at VSTARTUP threshold
SRx WAKE FROM SLEEP; TA = 25°C (unless otherwise noted)
V(WAKE)
Positive or negative wake threshold
with 1.00 mV, 2.25 mV, 4.5 mV and 9
mV programmable options
0.1
1.25
1
µA
1
µA
10
mV
V (WAKE) = 1 mV;
I(WAKE)= 0, RSNS1 = 0, RSNS0 = 1;
â0.7
V(WAKE_ACR)
Accuracy of V(WAKE)
V(WAKE) = 2.25 mV;
I(WAKE) = 1, RSNS1 = 0, RSNS0 = 1;
I(WAKE) = 0, RSNS1 = 1, RSNS0 = 0;
V(WAKE) = 4.5 mV;
I(WAKE) = 1, RSNS1 = 1, RSNS0 = 1;
I(WAKE) = 0, RSNS1 = 1, RSNS0 = 0;
â0.8
â1.0
V(WAKE) = 9 mV;
I(WAKE) = 1, RSNS1 = 1, RSNS0 = 1;
â1.4
V(WAKE_TCO) Temperature drift of V(WAKE) accuracy
0.5
t(WAKE)
Time from application of current and
wake of bq34z651
1
0.7
0.8
mV
1.0
1.4
%/°C
10
ms
WATCHDOG TIMER
tWDTINT
Watchdog start up detect time
tWDWT
Watchdog detect time
2.5V LDO; I(REG33OUT) = 0 mA; TA = 25°C (unless otherwise noted)
V(REG25)
Regulator output voltage
4.5 < VCC or BAT < 25 V;
I(REG25OUT) ⤠16 mA;
TA = â40°C to 100°C
ÎV(REG25TEMP)
Regulator output change with
temperature
I(REG25OUT) = 2 mA;
TA = â40°C to 100°C
ÎV(REG25LINE) Line regulation
5.4 < VCC or BAT < 25 V;
I(REG25OUT) = 2 mA
ÎV(REG25LOAD) Load Regulation
0.2 mA ⤠I(REG25OUT) ⤠2 mA
0.2 mA ⤠I(REG25OUT) ⤠16 mA
I(REG25MAX)
Current Limit
Drawing current until
REG25 = 2 V to 0 V
250
500
1000
ms
50
100
150
µs
2.41
2.5
2.59
V
±0.2
%
3
10
mV
7
25
mV
25
50
5
40
75
mA
3.3V LDO; I(REG25OUT) = 0 mA; TA = 25°C (unless otherwise noted)
V(REG33)
Regulator output voltage
4.5 < VCC or BAT < 25 V;
I(REG33OUT) ⤠25 mA;
TA = â40°C to 100°C
ÎV(REG33TEMP)
Regulator output change with
temperature
I(REG33OUT) = 2 mA;
TA = â40°C to 100°C
ÎV(REG33LINE) Line regulation
5.4 < VCC or BAT < 25 V;
I(REG33OUT) = 2 mA
ÎV(REG33LOAD) Load Regulation
0.2 mA ⤠I(REG33OUT) ⤠2 mA
0.2 mA ⤠I(REG33OUT) ⤠25 mA
I(REG33MAX)
Current Limit
Drawing current until REG33 = 3 V
Short REG33 to VSS, REG33 = 0 V
3
3.3
3.6
V
±0.2
%
3
10
mV
7
17
mV
40
100
25
100
145
mA
12
65
THERMISTOR DRIVE
V(TOUT)
RDS(on)
Output voltage
TOUT pass element resistance
I(TOUT) = 0 mA; TA = 25°C
I(TOUT) = 1 mA; RDS(on) = (V(REG25) â
V(TOUT) )/ 1 mA; TA = â40°C to 100°C
V(REG25)
V
50
100
â¦
8
Copyright © 2011, Texas Instruments Incorporated
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