Datasheet

ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
bq20z45
SLUS800 – MARCH 2009 .................................................................................................................................................................................................. www.ti.com
over operating free-air temperature (unless otherwise noted)
(1)
PIN UNIT
BAT, VCC – 0.3 V to 34 V
PACK, PMS – 0.3 V to 34 V
V
SS
Supply voltage range VC(n)-VC(n+1); n = 1, 2, 3, 4 – 0.3 V to 8.5 V
VC1, VC2, VC3, VC4 – 0.3 V to 34 V
VC5 – 0.3 V to 1 V
PFIN, SMBD, SMBC – 0.3 V to 6 V
TS1, TS2, SAFE, VCELL+, PRES; ALERT – 0.3 V to V
(REG25)
+ 0.3 V
V
IN
Input voltage range
MRST, GSRN, GSRP, RBI – 0.3 V to V
(REG25)
+ 0.3 V
ASRN, ASRP – 1 V to 1 V
DSG, CHG, GPOD – 0.3 V to 34 V
ZVCHG – 0.3 V to V
(BAT)
V
OUT
Output voltage range TOUT, ALERT, REG33 – 0.3 V to 6 V
RESET – 0.3 V to 7 V
REG25 – 0.3 V to 2.75 V
I
SS
Maximum combined sink current for input pins PRES, PFIN, SMBD, SMBC 50 mA
T
A
Operating free-air temperature range – 40 ° C to 85 ° C
T
F
Functional temperature – 40 ° C to 100 ° C
T
stg
Storage temperature range – 65 ° C to 150 ° C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
over operating free-air temperature range (unless otherwise noted)
PIN MIN NOM MAX UNIT
V
SS
Supply voltage VCC, BAT 4.5 25 V
V
(STARTUP)
Minimum startup voltage VCC, BAT, PACK 5.5 V
VC(n)-VC(n+1); n = 1,2,3,4 0 5 V
VC1, VC2, VC3, VC4 0 V
SUP
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
A
(GPOD)
Drain Current
(1)
GPOD 1 mA
C
(REG25)
2.5V LDO Capacitor REG25 1 µ F
C
(REG33)
3.3V LDO Capacitor REG33 2.2 µ F
C
(VCELL+)
Cell Voltage Output Capacitor VCELL+ 0.1 µ F
C
(PACK)
PACK input block resistor
(2)
PACK 1 k Ω
(1) Use an external resistor to limit the current to GPOD to 1mA in high voltage application.
(2) Use an external resistor to limit the inrush current PACK pin required.
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