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| BQ20Z70 Datasheet, PDF (5/22 Pages) Texas Instruments – SBS 1.1-COMPLIANT GAS GAUGE ENABLED WITH IMPEDANCE TRACK™ TECHNOLOGY FOR USE WITH THE bq29330 | |||
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POWER-ON RESET
VCC = 2.4 V to 2.6 V, TA = â40°C to 85°C (unless otherwise noted)
PARAMETER
VITâ Negative-going voltage input
VHYS Power-on reset hysteresis
1.81
bq20z70
SLUS686A â NOVEMBER 2005 â REVISED JUNE 2006
TEST CONDITIONS
MIN TYP MAX UNIT
1.7 1.8 1.9 V
50 125 200 mV
1.8
1.79
1.78
1.77
1.76
-40 -20
0
20
40
60
80
TA - Free-Air Temperature - °C
INTEGRATING ADC (Coulomb Counter) CHARACTERISTICS
VCC = 2.4 V to 2.6 V, TA = â40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
V(SR)
V(SROS)
INL
Input voltage range, V(SRN) and V(SRP)
Input offset
Integral nonlinearity error
V(SR) = V(SRP) â V(SRN)
TA =25°C to 85°C
MIN
â0.20
TYP
10
±0.007
MAX
0.20
±0.037
UNIT
V
µV
%
OSCILLATOR
VCC = 2.4 V to 2.6 V, TA = â40°C to 85°C (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP MAX
HIGH FREQUENCY OSCILLATOR
f (OSC) Operating frequency
f (EIO) Frequency error (1)(2)
f (sxo)
Start-up time (3)
LOW FREQUENCY OSCILLATOR
T A = 20°C to 70°C
4.194
-3% 0.25%
3%
-2% 0.25%
2%
2.5
5
f (LOSC)
f (LEIO)
Operating frequency
Frequency error (2)(4)
f (Lsxo) Start-up time (5)
T A = 20°C to 70°C
-2.5%
-1.5%
32.768
0.25%
0.25%
2.5%
1.5%
500
(1) The frequency error is measured from 4.194 MHz.
(2) The frequency drift is included and measured f rom the trimmed frequency at V CC = 2.5 V, T A = 25°C.
(3) The start-up time is defined as the time it takes for the oscillator output frequency to be within 1% of the specified frequency.
(4) The frequency error is measured from 32.768 kHz.
(5) The start-up time is defined as the time it takes for the oscillator output frequency to be ±3%.
UNIT
MHz
ms
kHz
µs
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