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| BQ40Z60_16 Datasheet, PDF (11/47 Pages) Texas Instruments – Programmable Battery Management Unit | |||
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www.ti.com
bq40z60
SLUSAW3C â DECEMBER 2014 â REVISED JULY 2015
8.20 Internal Temperature Sensor
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
VTEMP
Internal temperature
sensor voltage drift
VTEMPP
VTEMPP â VTEMPN, assured by design
â1.9
0.177
â2.0
0.178
â2.1
mV/°C
0.179
8.21 NTC Thermistor Measurement Support (ADCx)
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
RNTC(PU)
Internal pullup
resistance
14.4
18
21.6 kΩ
RNTC(DRIFT)
Resistance drift over
temperature
â360 â280
â200 PPM/°C
8.22 High-Frequency Oscillator
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
fHFO
fHFO(ERR)
tHFO(SU)
Operating frequency
Frequency error
Start-up time
TA = â20°C to 70°C, includes frequency drift
TA = â40°C to 85°C, includes frequency drift
TA = â20°C to 85°C, CLKCTL[HFRAMP] = 1, oscillator
frequency within +/â3% of nominal
CLKCTL[HFRAMP] = 0, oscillator frequency within +/â3%
of nominal
16.78
â2.5% ±0.25%
â3.5% ±0.25%
2.5%
3.5%
4
MHz
ms
100 µs
8.23 Low-Frequency Oscillator
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
fLFO
fLFO(ERR)
fLFO(FAIL)
Operating frequency
Frequency error
Failure detection
frequency
TA = â20°C to 70°C, includes frequency drift
TA = â40°C to 85°C, includes frequency drift
262.144
â1.5% ±0.25%
â2.5 ±0.25
30
80
kHz
1.5%
2.5
100 kHz
8.24 Voltage Reference 1
Typical values stated where TA = 25°C and VCC = 10.8 V, Min/Max values stated where TA = â40°C to 85°C and VCC =
2.2 V to 26 V (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN TYP
MAX UNIT
VREF1
Internal reference
voltage
TA = 25°C, after trim
1.21 1.215
1.22 V
VREF1(DRIFT)
Internal reference
voltage drift
TA = 0°C to 60°C, after trim
TA = â40°C to 85°C, after trim
±50
PPM/°C
±80
Copyright © 2014â2015, Texas Instruments Incorporated
Product Folder Links: bq40z60
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