BQ20Z45-R1 Datasheet, PDF (4/18 Pages) Texas Instruments – SBS 1.1-Compliant Gas Gauge and Protection Enabled With Impedance Track™

bq20z45-R1
SLUS992 – DECEMBER 2009
www.ti.com
ABSOLUTE MAXIMUM RATINGS
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
VC1, VC2, VC3, VC4
–0.3 V to 8.5 V
–0.3 V to 34 V
VC5
–0.3 V to 1 V
PFIN, SMBD, SMBC
–0.3 V to 6 V
V_IN Input voltage range
TS1, TS2, SAFE, VCELL+, PRES; ALERT
MRST, GSRN, GSRP, RBI
ASRN, ASRP
–0.3 V to V_(REG25) + 0.3 V
–0.3 V to V_(REG25) + 0.3 V
–1 V to 1 V
DSG, CHG, GPOD
–0.3 V to 34 V
V_OUT Output voltage range
ZVCHG
TOUT, ALERT, REG33
RESET
–0.3 V to V _(BAT)
–0.3 V to 6 V
–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
T_A
Operating free-air temperature range
T_F
Functional temperature
T_stg Storage temperature range
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)
PIN
V_SS
V_(STARTUP)
Supply voltage
Minimum startup voltage
VCC, BAT
VCC, BAT, PACK
VC(n)-VC(n+1); n = 1,2,3,4
VC1, VC2, VC3, VC4
V_IN
Input Voltage Range
VC5
ASRN, ASRP
PACK, PMS
V_(GPOD)
I_(GPOD)
C_(REG25)
C_(REG33)
C_(VCELL+)
R_(PACK)
Output Voltage Range
Drain Current⁽¹⁾
2.5V LDO Capacitor
3.3V LDO Capacitor
Cell Voltage Output Capacitor
PACK input block resistor⁽²⁾
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_SS
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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