Datasheet

bq20z655-R1
www.ti.com SLUSAN9 –AUGUST 2011
RECOMMENDED OPERATING CONDITIONS (continued)
Over operating free-air temperature range (unless otherwise noted)
PIN MIN NOM MAX UNIT
VC(n)-VC(n+1); n = 1,2,3,4 0 5 V
VC1, VC2, VC3, VC4 0 V
SS
V
V
IN
Input voltage range VC5 0 0.5 V
ASRN, ASRP –0.5 0.5 V
PACK, PMS 0 25 V
V
(GPOD)
Output voltage range GPOD 0 25 V
I
(GPOD)
Drain current
(1)
GPOD 1 mA
C
(REG25)
2.5V LDO capacitor REG25 1 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 1 kΩ
(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), T
A
= –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 T
A
= 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 90 µA
CHG FET off; DSG FET off 52 µA
I
(SHUTDOWN)
Shutdown mode 0.1 1 µA
SHUTDOWN WAKE; T
A
= 25°C (unless otherwise noted)
Shutdown exit at V
STARTUP
I
(PACK)
1 µA
threshold
SRx WAKE FROM SLEEP; T
A
= 25°C (unless otherwise noted)
Positive or negative wake
threshold with 1.00 mV, 2.25
V
(WAKE)
1.25 10 mV
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)
mV
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 1 10 ms
bq20z655-R1
WATCHDOG TIMER
t
WDTINT
Watchdog start up detect time 250 500 1000 ms
t
WDWT
Watchdog detect time 50 100 150 µs
2.5V LDO; I
(REG33OUT)
= 0 mA; T
A
= 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 V
T
A
= –40°C to 100°C
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