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ADM1034 Folha de dados(PDF) 4 Page - ON Semiconductor

Nome de Peças ADM1034
Descrição Electrónicos  Thermal Monitor and Fan Speed (RPM) Controller
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Fabricante Electrônico  ONSEMI [ON Semiconductor]
Página de início  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

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ADM1034
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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)
3.0
3.30
3.6
V
Supply Current, ICC
Interface inactive, ADC active
3.0
mA
Standby mode
900
mA
Undervoltage Lockout Threshold
2.5
V
Power−On Reset Threshold
1.0
2.4
V
Temperature−to−Digital Converter
Internal Sensor Accuracy
+20°C ≤ TA ≤ +60°C
−40°C ≤ TA ≤ +100°C
±1.0
±2.0
±2.5
°C
Resolution
0.03125
°C
External Diode Sensor Accuracy
−40°C ≤ TD ≤ +100°C; TA = +40°C
−40°C ≤ TD ≤ +100°C; +20°C ≤ TA ≤ +60°C
−40°C ≤ TD ≤ +100°C; −40°C ≤ TA ≤ +100°C
±0.5
±1.0
±1.0
±1.25
±2.5
°C
Resolution
0.03125
°C
Remote Sensor Source Current
High level
Mid level
Low level
87
33
5.5
mA
Series Resistance Cancellation
1000
W
Power Supply Sensitivity
±1.0
%/V
Conversion Time (Local Temperature)
Averaging enabled
11
ms
Conversion Time (Remote Temperature)
Averaging enabled
32
ms
Total Conversion Time
Averaging enabled
75
ms
Open−Drain Digital Outputs (ALERT, THERM, FAN_FAULT, DRIVE1, DRIVE2) (Note 3)
Output Low Voltage, VOL
IOUT = −6.0 mA; VCC = +3 V
0.4
V
High Level Output Leakage Current, IOH
VOUT = VCC; VCC = 3 V
0.1
1.0
mA
Digital Input Leakage Current (TACH1, TACH2)
Input High Current, IIH
−VIN = VCC
−1.0
mA
Input Low Current, IIL
VIN = 0
1.0
mA
Input Capacitance, CIN
7.0
pF
Digital Input Logic Levels (TACH1, TACH2)
Input High Voltage, VIH
2.0
5.5
V
Input Low Voltage, VIL
−0.3
+0.8
V
Hysteresis
500
mV p−p
Open−Drain Serial Data Bus Output (SDA)
Output Low Voltage, VOL
IOUT = −6.0 mA; VCC
0.4
V
High Level Output Leakage Current, IOH
VOUT = VCC
0.1
1.0
mA
Serial Data Bus Inputs (SCL, SDA)
Input High Voltage, VIH
2.1
V
Input Low Voltage, VIL
0.8
V
Hysteresis
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 ADM1034.
4. Guaranteed by design, not production tested.
5. SMBus timeout disabled by default. See the SMBus section for more information.


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