Datasheet

Data Sheet ADM1191
Rev. C | Page 3 of 16
SPECIFICATIONS
V
CC
= 3.15 V to 26 V, T
A
= −40°C to +85°C, typical values at T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Min Typ Max Unit Conditions
VCC PIN
Operating Voltage Range, V
CC
3.15 26 V
Supply Current, I
CC
1.7 2 mA
Undervoltage Lockout, V
UVLO
2.8 V VCC rising
Undervoltage Lockout Hysteresis, V
UVLOHYST
80 mV
CONV PIN
Input Current, I
CONV
−2 +2 µA
Logic Low Threshold, V
CONVL
1.2 V
Logic High Threshold, V
CONVH
1.4 V
MONITORING ACCURACY
1
Current Sense Absolute Accuracy
0°C to +70°C −1.45 +1.45 % V
SENSE
= 75 mV
−1.8 +1.8 % V
SENSE
= 50 mV
−2.8 +2.8 % V
SENSE
= 25 mV
−5.7 +5.7 % V
SENSE
= 12.5 mV
0°C to +85°C −1.5 +1.5 % V
SENSE
= 75 mV
−1.8 +1.8 % V
SENSE
= 50 mV
−2.95 +2.95 % V
SENSE
= 25 mV
−6.1 +6.1 % V
SENSE
= 12.5 mV
−40°C to +85°C −1.95 +1.95 % V
SENSE
= 75 mV
−2.45
+2.45
%
V
SENSE
= 50 mV
−3.85 +3.85 % V
SENSE
= 25 mV
−6.7 +6.7 % V
SENSE
= 12.5 mV
V
SENSE
for ADC Full Scale
2
105.84 mV
Voltage Sense Accuracy
0°C to +70°C −0.85 +0.85 % V
CC
= 3.0 V to 5.5 V (low range)
−0.9 +0.9 % V
CC
= 10.8 V to 16.5 V (high range)
0°C to +85°C −0.85 +0.85 % V
CC
= 3.0 V to 5.5 V (low range)
−0.9 +0.9 % V
CC
= 10.8 V to 16.5 V (high range)
−40°C to +85°C −0.9 +0.9 % V
CC
= 3.0 V to 5.5 V (low range)
−1.15 +1.15 % V
CC
= 10.8 V to 16.5 V (high range)
V
CC
for ADC Full Scale
3
Low Range (VRANGE = 1)
6.65
V
High Range (VRANGE = 0)
26.52
V
ADC Conversion Time
4
150 µs
SENSE PIN
Input Current, I
SENSE
−1 +1 µA V
SENSE
= V
CC
SETV PIN
Overcurrent Trip Threshold 98 100 102 mV V
SETV
= 1.8 V
49.5 50 50.5 mV V
SETV
= 0.9 V
Overcurrent Trip Gain, V
SETV
/(V
CC
− V
SENSE
) 18 V
SETV
= 0.9 V to 1.9 V
Input Current, I
SETVLEAK
−1 +1 µA V
SETV
= 0.9 V to 1.9 V
ALERTB PIN
Output Low Voltage, V
ALERTOL
0.05 0.1 V I
ALERT
= −100 µA
1 1.5 mA I
ALERT
= −2 mA
Input Current, I
ALERT
−1 +1 µA V
ALERT
= V
CC
; ALERTB not asserted