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ADM1278-1BCPZ Datasheet(PDF) 7 Page - Analog Devices

Part # ADM1278-1BCPZ
Description  Hot Swap Controller and Digital Power and Energy Monitor with PMBus Interface
Download  61 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADM1278-1BCPZ Datasheet(HTML) 7 Page - Analog Devices

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Data Sheet
ADM1278
Parameter1
Symbol
Min
Typ
Max
Unit
Test Conditions/Comments
PWGIN PIN
Input Current
IPWGIN
50
nA
PWGIN ≤ 3.6 V
PWGIN Threshold
PWGINTH
A Grade and AA Grade
0.99
1.0
1.01
V
PWGIN falling
B Grade Only
0.97
1.0
1.03
V
PWGIN falling
PWGIN Threshold Hysteresis
PWGINHYST
50
60
70
mV
Glitch Filter
1
µs
Asserting and deasserting of PWRGD pin
CURRENT AND VOLTAGE
MONITORING
See Table 3 for power monitor accuracy specifications
ADC Conversion Time
Includes time for power multiplication
144
165
µs
One sample of IOUT; from command received to valid data
in register
64
73
µs
One sample of VIN; from command received to valid data
in register
64
73
µs
One sample of VOUT; from command received to valid data
in register
ADRx PINS
Address Set to 00
0
0.8
V
Connect to GND
Input Current for Address Set
to 00
−40
−22
μA
VADRx = 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
Address Set to 11
2
V
Connect to VCAP
Input Current for Address Set
to 11
3
10
μA
VADRx = 2.0 V to VCAP; must not exceed the maximum
allowable current draw from VCAP
TEMP PIN
External transistor is 2N3904
Operating Range
−55
+150
°C
Limited by external diode
Accuracy
±1
±10
°C
TA = TDIODE = −40°C to +85°C
Resolution
0.25
°C
LSB size
Output Current Source2
Low Level
5
µA
Medium Level
30
µA
High Level
105
µA
Maximum Series Resistance
for External Diode2
RS
100
Ω
For <±0.5°C additional error, CP = 0 F
Maximum Parallel
Capacitance for External
Diode2
CP
1
nF
RS = 0 Ω
SPI DIGITAL INPUTS (SPI_SS,
MCLK, MDAT)
Compatible with SPI Mode 0; MDAT is the output data
pin; output is high impedance when not transmitting
Input High Voltage
VIH
2.0
V
Input Low Voltage
VIL
0.8
V
Output Low Voltage
VOL
0.4
V
IOL = 4 mA
Leakage Current
1
µA
Data Rate
1
MHz
SERIAL BUS DIGITAL INPUTS
(SDA, SCL)
Input High Voltage
VIH
1.1
V
Input Low Voltage
VIL
0.8
V
Output Low Voltage
VOL
0.4
V
IOL = 4 mA
Input Leakage
ILEAK-PIN
−10
+10
μA
−5
+5
μA
Device is not powered
Rev. A | Page 7 of 61


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