Datasheet

ADM1276 Data Sheet
Rev. C | Page 6 of 48
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
GPO2/ALERT2 PIN
Output Low Voltage V
OL_GPO2
0.4 V I
GPO2
= 1 mA
1.5 V I
GPO2
= 5 mA
Leakage Current 100 nA V
GPO2
≤ 2 V; GPO output high-Z
1 µA V
GPO2
= 20 V; GPO output high-Z
PWRGD PIN
Output Low Voltage V
OL_PWRGD
0.4 V I
PWRGD
= 1 mA
1.5
V
I
PWRGD
= 5 mA
VCC That Guarantees Valid
Output
1 V I
SINK
= 100 μA; V
OL_PWRGD
= 0.4 V
Leakage Current 100 nA V
PWRGD
≤ 2 V; PWRGD output high-Z
1 µA V
PWRGD
= 20 V; PWRGD output high-Z
CURRENT AND VOLTAGE
MONITORING
Current Sense Absolute
Error
25 mV input range; 128 sample averaging (unless otherwise
noted)
±0.2 ±0.7 % V
SENSE
= 20 mV; V
SENSE+
= 12 V; T
A
= 0°C to 65°C
±0.08 % V
SENSE
= 20 mV; V
SENSE+
= 12 V; T
A
= 25°C
±1.0 % V
SENSE
= 20 mV
±0.08 % V
SENSE
= 20 mV; T
A
= 25°C
±0.2 % V
SENSE
= 20 mV; T
A
= 0°C to 65°C
±1.0
%
V
SENSE
= 20 mV; 16 sample averaging
±0.08 % V
SENSE
= 20 mV; 16 sample averaging; T
A
= 25°C
±0.2 % V
SENSE
= 20 mV; 16 sample averaging; T
A
= 0°C to 65°C
±2.8 % V
SENSE
= 20 mV; 1 sample averaging
±0.09 % V
SENSE
= 20 mV; 1 sample averaging; T
A
= 25°C
±0.2 % V
SENSE
= 20 mV; 1 sample averaging; T
A
= 0°C to 65°C
±0.7 % V
SENSE
= 25 mV; V
SENSE+
= 12 V
±0.04 % V
SENSE
= 25 mV; V
SENSE+
= 12 V; T
A
= 25°C
±0.15 % V
SENSE
= 25 mV; V
SENSE+
= 12 V; T
A
= 0°C to 65°C
±0.75 % V
SENSE
= 20 mV; V
SENSE+
= 12 V
±0.8 % V
SENSE
= 15 mV; V
SENSE+
= 12 V
±1.1
%
V
SENSE
= 10 mV; V
SENSE+
= 12 V
±2.0 % V
SENSE
= 5 mV; V
SENSE+
= 12 V
±4.3 % V
SENSE
= 2.5 mV; V
SENSE+
= 12 V
SENSE+/VOUT Absolute
Error
±1.0 % Low input range; input voltage ≥ 3 V
±1.0 % High input range; input voltage ≥ 10 V
ADC Conversion Time
Includes time for power multiplication
237 280 µs
1 sample of VIN and IOUT; from command received to valid
data in register
360 426 µs
1 sample of VIN, VOUT, and IOUT; from command received to
valid data in register
3753 4233 µs
16 samples of VIN and IOUT averaged; from command
received to valid data in register
5545 6570 µs
16 samples of VIN, VOUT, and IOUT averaged; from command
received to valid data in register
Power Multiplication Time 14 µs
ADR PIN
Address Set to 00 0 0.8 V Connect to GND
Input Current for Address 00 −40 −22 μA V
ADR
= 0 V to 0.8 V
Address Set to 01 135 150 165 kΩ Resistor to GND
Address Set to 10
−1
+1
μA
No connect state; maximum leakage current allowed