ADT7476ARQZ ON Semiconductor, ADT7476ARQZ Datasheet - Page 4

• Manufacturer Part Number: ADT7476ARQZ
• Description: IC REMOTE THERMAL CTRLR 24QSOP
• Manufacturer: ON Semiconductor
• Series: dBCool®r

Specifications of ADT7476ARQZ

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Fan Speed Counter, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: No
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 24-QSOP
• Full Temp Accuracy: +/- 0.5 C
• Digital Output - Bus Interface: Serial (3-Wire, 4-Wire)
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS
Power Supply
Temperature−to−Digital Converter
Analog−to−Digital Converter (Including MUX and Attentuators)
Fan RPM−To−Digital Converter
Open−Drain Digital Outputs, PWM1 TO PWM3, XTO
Open−Drain Serial Data Bus Output (SDA)
SMBus Digital Inputs (SCL, SDA) (Note 2)
Digital Input Logic Levels (TACH Inputs)
Supply Voltage
Supply Current, I
Local Sensor Accuracy
Remote Diode Sensor Accuracy
Remote Sensor Source Current
Total Unadjusted Error (TUE)
Differential Non−linearity (DNL)
Power Supply Sensitivity
Conversion Time
Total Monitoring Cycle Time
Input Resistance
Accuracy
Full−Scale Count
Nominal Input RPM
Current Sink, I
Output Low Voltage, V
High Level Output Current, I
Output Low Voltage, V
High Level Output Current, I
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Input High Voltage, V
Input Low Voltage, V
Hysteresis
Resolution
Resolution
Voltage Input
Local Temperature
Remote Temperature
Parameter
OL
CC
IL
IL
IH
IH
OL
OL
OH
OH
T
A
= T
Interface inactive, ADC active
0°C ≤ T
−40°C ≤ T
0°C ≤ T
−40°C ≤ T
Low level
High level
For 12 V channel
For all other channels
8 bits
Averaging enabled
Averaging enabled
Averaging disabled
For V
For all other channels
0°C ≤ T
−40°C ≤ T
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
I
V
I
V
Maximum input voltage
Minimum input voltage
OUT
OUT
OUT
OUT
MIN
= −8.0 mA
= −4.0 mA
CCP
= V
= V
to T
A
A
A
≤ 85°C
≤ 85°C
≤ 70°C
CC
CC
A
A
channel
A
MAX
≤ 125°C
≤ 125°C
≤ +120°C
http://onsemi.com
Conditions
, V
CC
= V
4
MIN
to V
MAX
, unless otherwise noted. (Note 1)
−0.3
Min
3.0
2.0
2.0
70
70
10,000
5000
±0.5
0.25
±0.5
0.25
±0.1
Typ
180
145
120
114
109
329
500
3.3
1.5
0.1
0.1
0.5
12
38
19
11
11
65,535
Max
±1.5
±2.5
±1.5
±2.5
±1.5
±10
3.6
3.0
8.0
0.4
0.4
1.0
0.4
3.6
0.8
±2
±1
±6
20
V p−p
RPM
Unit
LSB
%/V
mA
mA
mV
mA
ms
ms
kW
mA
mA
°C
°C
%
%
V
V
V
V
V
V
V