Datasheet

bq76PL536-Q1
www.ti.com SLUSAB1 –MAY 2011
VCn (Cell) Inputs
Typical values stated where T
A
= 25°C and BAT = 20 V, Min/Max values stated where T
A
= –40˚C to 105°C and BAT = 7.2 V
to 27 V (unless otherwise noted), FUNCTION_CONFIG[]=01xxxx00b for all test conditions (6-µs conversion time selected).
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
V
IN
Input voltage range
(1)
VCn – VCn–1, where n = 1 to 6 0 6 V
V
RES
Voltage resolution
(2)
14 bits ~378 µV
Voltage accuracy,
(3)
total –10°C ≤ T
A
≤ 50°C, 1.2 V < V
IN
< 4.5 V –2.5 ±1 2.5
V
ACC
error, mV
–40°C ≤ T
A
≤ 105°C, 1.2 V < V
IN
< 4.5 V –5 5
V
IN
= VCn to VCn–1
R
IN
Effective input resistance Converting 2 MΩ
C
IN
Input capacitance
(3)
Converting 1 pF
E
N
NoiseSLUSA086559 V
IN
= 3 V <250 µV
RMS
(1) 0 V may not lie within the range of measured values due to offset voltage limit and device calibration.
(2) See text for specific conversion formula.
(3) ADC is factory trimmed at the conversion speed of ~6 µs/channel (FUNC_CONFIG[ADCT1:0] = 01b). Use of a different
conversion-speed setting may affect measurement accuracy.
V
BAT
(V
BRICK
) Measurement
Typical values stated where T
A
= 25°C and BAT = 20 V, Min/Max values stated where T
A
= –40˚C to 105°C and BAT = 7.2 V
to 27 V (unless otherwise noted), FUNCTION_CONFIG[] = 01xxxx00b for all test conditions
PARAMETER TEST CONDITION MIN TYP MAX UNIT
Input voltage range
(1)
,
V
IN
FUNCTION_CONFIG[] = 0101xx00b 0 30 V
BATn to VSS
V
RES
Voltage resolution
(2)
14 bits ~1.831 mV
V
ACC
Voltage accuracy
(3)
Total error –80 –30 20 mV
C
IN
Input capacitance Converting 1 pF
R
IN
Effective input resistance Converting 50 kΩ
E
N
Noise <1.5 mV
RMS
(1) 0 V may not lie within the range of measured values due to offset voltage limit and device calibration.
(2) See text for specific conversion formula.
(3) ADC is factory trimmed at the conversion speed of ~6 µs/channel (FUNC_CONFIG[ADCT1:0] = 01b). Use of a different
conversion-speed setting may affect measurement accuracy.
GPAI Measurement
Typical values stated where T
A
= 25°C and BAT = 20 V, Min/Max values stated where T
A
= –40˚C to 105°C and BAT = 7.2 V
to 27 V (unless otherwise noted), FUNCTION_CONFIG[] = 0101xx00b for all test conditions
PARAMETER TEST CONDITION MIN TYP MAX UNIT
Input voltage range,
(1)
V
IN
0 2.5 V
GPAI+ to GPAI–
V
RES
Voltage resolution
(2)
14 bits ~153 µV
0.25 V ≤ V
IN
≤ 2.5 V –7 7
Voltage accuracy,
(3)
V
IN
=
V
ACC
mV
GPAI+ – GPAI–
V
IN
= 1.25 V, T
A
= 25°C ±2
C
IN
Input capacitance Converting 40 pF
R
IN
Effective input resistance Converting 50 KΩ
E
N
Noise <150 µV
RMS
(1) 0 V may not lie within the range of measured values due to offset voltage limit and device calibration.
(2) See text for specific conversion formula.
(3) ADC is factory trimmed at the conversion speed of ~6 µs/channel (FUNC_CONFIG[ADCT1:0] = 01b). Use of a different
conversion-speed setting may affect measurement accuracy.
Copyright © 2011, Texas Instruments Incorporated 9