ADM1033 データシートの表示（PDF） - ON Semiconductor
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ADM1033 Datasheet PDF : 35 Pages
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ADM1033
ELECTRICAL CHARACTERISTICS (TA = TMIN to TMAX, VCC = VMIN to VMAX, unless otherwise noted. (Note 1)
Parameter
Test Conditions / Comments
Min
Typ
Max
Unit
Power Supply
Supply Voltage, VCC (Note 2)
Supply Current, ICC
Undervoltage Lockout Threshold
Interface inactive, ADC active
Standby mode
3.0
3.30
3.6
V
3.0
mA
900
mA
2.5
V
Power−On Reset Threshold
Temperature−to−Digital Converter
1.0
2.4
V
Internal Sensor Accuracy
Resolution
20°C ≤ TA ≤ 60°C
−40°C ≤ TA ≤ +100°C
±1.0
±2.0
°C
−4.0
+2.0
0.03125
°C
External Diode Sensor Accuracy
Resolution
Remote Sensor Source Current
−40°C ≤ TD ≤ +100°C; TA = +40°C
±0.5
±1.0
°C
−40°C ≤ TD ≤ +100°C; +20°C ≤ TA ≤ +60°C
±1.0
±1.25
−40°C ≤ TD ≤ +100°C; −40°C ≤ TA ≤ +100°C
−3.0
+2.0
0.03125
°C
High level
Mid level
Low level
85
mA
34
5.0
Series Resistance Cancellation
Power Supply Sensitivity
1000
W
±1.0
%/V
Conversion Time (Local Temperature)
Averaging enabled
11
ms
Conversion Time (Remote Temperature) Averaging enabled
32
ms
Total Conversion Time
Averaging enabled
43
ms
Open−Drain Digital Outputs (ALERT, THERM, FAN_FAULT, DRIVE1, DRIVE2) (Note 3)
Output Low Voltage, VOL
IOUT = −6.0 mA; VCC = +3.0 V
High Level Output Leakage Current, IOH VOUT = VCC; VCC = 3.0 V
Digital Input Leakage Current (TACH1, TACH2)
0.4
V
0.1
1.0
mA
Input High Current, IIH
−VIN = VCC
Input Low Current, IIL
VIN = 0
Input Capacitance, CIN
Digital Input Logic Levels (TACH1, TACH2)
−1.0
mA
1.0
mA
7.0
pF
Input High Voltage, VIH
Input Low Voltage, VIL
Hysteresis
2.0
5.5
V
−0.3
+0.8
V
500
mV p−p
Open−Drain Serial Data Bus Output (SDA)
Output Low Voltage, VOL
High Level Output Leakage Current, IOH
Serial Bus Digital Inputs (SCL, SDA)
IOUT = −6.0 mA; VCC
VOUT = VCC
0.4
V
0.1
1.0
mA
Input High Voltage, VIH
Input Low Voltage, VIL
Hysteresis
2.1
V
0.8
V
500
mV
Analog Inputs (Location, REF)
Input Resistance
80
125
160
kW
1. Typicals are at TA = 25°C and represent most likely parametric norm. Standby current typ. is measured with VCC = 3.3 V. Timing
specifications are tested at logic levels of VIL = 0.8 V for a falling edge and VIH = 2.1 V for a rising edge.
2. Operation at 5.5 V is guaranteed by design, not production tested.
3. Recommend use of 100 kW pullup resistors for all open−drain outputs from the ADM1033.
4. Guaranteed by design, not production tested.
5. SMBus timeout disabled by default. See the SMBus section for more information.
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