BQ20Z45 Datasheet, PDF (4/20 Pages) Texas Instruments – SBS 1.1-Compliant Gas Gauge and Protection Enabled With Impedance Track™

bq20z45
SLUS800 – MARCH 2009 .................................................................................................................................................................................................. www.ti.com
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature (unless otherwise noted) ⁽¹⁾
V_SS
V_IN
V_OUT
I_SS
T_A
T_F
T_stg
Supply voltage range
Input voltage range
Output voltage range
Maximum combined sink current for input pins
Operating free-air temperature range
Functional temperature
Storage temperature range
PIN
BAT, VCC
PACK, PMS
VC(n)-VC(n+1); n = 1, 2, 3, 4
VC1, VC2, VC3, VC4
VC5
PFIN, SMBD, SMBC
TS1, TS2, SAFE, VCELL+, PRES; ALERT
MRST, GSRN, GSRP, RBI
ASRN, ASRP
DSG, CHG, GPOD
ZVCHG
TOUT, ALERT, REG33
RESET
REG25
PRES, PFIN, SMBD, SMBC
UNIT
–0.3 V to 34 V
–0.3 V to 34 V
–0.3 V to 8.5 V
–0.3 V to 34 V
–0.3 V to 1 V
–0.3 V to 6 V
–0.3 V to V_(REG25) + 0.3 V
–0.3 V to V_(REG25) + 0.3 V
–1 V to 1 V
–0.3 V to 34 V
–0.3 V to V _(BAT)
–0.3 V to 6 V
–0.3 V to 7 V
–0.3 V to 2.75 V
50 mA
–40°C to 85°C
–40°C to 100°C
–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.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
V_SS
V_(STARTUP)
Supply voltage
Minimum startup voltage
V_IN
Input Voltage Range
V_(GPOD)
A_(GPOD)
C_(REG25)
C_(REG33)
C_(VCELL+)
C_(PACK)
Output Voltage Range
Drain Current⁽¹⁾
2.5V LDO Capacitor
3.3V LDO Capacitor
Cell Voltage Output Capacitor
PACK input block resistor⁽²⁾
PIN
VCC, BAT
VCC, BAT, PACK
VC(n)-VC(n+1); n = 1,2,3,4
VC1, VC2, VC3, VC4
VC5
ASRN, ASRP
PACK, PMS
GPOD
GPOD
REG25
REG33
VCELL+
PACK
(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.
MIN NOM MAX UNIT
4.5
25 V
5.5
V
0
5V
0
V_SUP
V
0
0.5 V
–0.5
0.5 V
0
25 V
0
25 V
1 mA
1
µF
2.2
µF
0.1
µF
1
kΩ
4
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