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BQ20Z65-R1 Datasheet(PDF) 9 Page - Texas Instruments

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Part # BQ20Z65-R1
Description  SBS 1.1-COMPLIANT GAS GAUGE AND PROTECTION ENABLED WITH IMPEDANCE TRACK?
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

BQ20Z65-R1 Datasheet(HTML) 9 Page - Texas Instruments

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SLUS990 – DECEMBER 2009
ELECTRICAL CHARACTERISTICS (continued)
Over operating free-air temperature range (unless otherwise noted), TA = –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 TA = 25°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
V(CHG): V(PACK) + V(CHGON) ≥ V(PACK)+
40
200
1V
tf
Fall time
CL= 4700pF
μs
V(DSG): VC1 + V(DSGON) ≥ VC1 + 1 V
40
200
V(ZVCHG)
ZVCHG clamp voltage
BAT = 4.5 V
3.3
3.5
3.7
V
LOGIC; TA = –40°C to 100°C (unless otherwise noted)
ALERT
60
100
200
R(PULLUP)
Internal pullup resistance
k
RESET
1
3
6
ALERT
0.2
VOL
Logic low output voltage level
RESET; V(BAT) = 7V; V(REG25) = 1.5 V; I (RESET) = 200 μA
0.4
V
GPOD; I(GPOD) = 50 μA
0.6
LOGIC SMBC, SMBD, PFIN, PRES, SAFE, ALERT, DISP
VIH
High-level input voltage
2.0
V
VIL
Low-level input voltage
0.8
V
VREG25–0.
VOH
Output voltage high(1)
IL = –0.5 mA
V
5
VOL
Low-level output voltage
PRES, PFIN, ALERT, DISP; IL = 7 mA;
0.4
V
CI
Input capacitance
5
pF
I(SAFE)
SAFE source currents
SAFE active, SAFE = V(REG25) –0.6 V
–3
mA
Ilkg(SAFE)
SAFE leakage current
SAFE inactive
–0.2
0.2
µA
Ilkg
Input leakage current
1
µA
ADC(2)
Input voltage range
TS1, TS2, using Internal Vref
–0.2
1
V
Conversion time
31.5
ms
Resolution (no missing codes)
16
bits
Effective resolution
14
15
bits
Integral nonlinearity
±0.03
%FSR(3)
Offset error(4)
140
250
µV
Offset error drift(4)
TA = 25°C to 85°C
2.5
18
μV/°C
Full-scale error(5)
±0.1%
±0.7%
Full-scale error drift
50
PPM/°C
Effective input resistance(6)
8
M
COULOMB COUNTER
Input voltage range
–0.20
0.20
V
Conversion time
Single conversion
250
ms
Effective resolution
Single conversion
15
bits
–0.1 V to 0.20 V
±0.007
±0.034
Integral nonlinearity
%FSR
–0.20 V to –0.1 V
±0.007
Offset error (7)
TA = 25°C to 85°C
10
µV
Offset error drift
0.4
0.7
µV/°C
Full-scale error(8) (9)
±0.35%
Full-scale error drift
150
PPM/°C
(1)
RC[0:7] bus
(2)
Unless otherwise specified, the specification limits are valid at all measurement speed modes.
(3)
Full-scale reference
(4)
Post-calibration performance and no I/O changes during conversion with SRN as the ground reference.
(5)
Uncalibrated performance. This gain error can be eliminated with external calibration.
(6)
The A/D input is a switched-capacitor input. Since the input is switched, the effective input resistance is a measure of the average
resistance.
(7)
Post-calibration performance
(8)
Reference voltage for the coulomb counter is typically Vref/3.969 at V(REG25) = 2.5 V, TA = 25°C.
(9)
Uncalibrated performance. This gain error can be eliminated with external calibration.
Copyright © 2009, Texas Instruments Incorporated
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