ADT7475ARQZ ON Semiconductor, ADT7475ARQZ Datasheet - Page 4

• Manufacturer Part Number: ADT7475ARQZ
• Description: IC REMOTE THERMAL CTRLR 16-QSOP
• Manufacturer: ON Semiconductor
• Series: dBCool®r

Specifications of ADT7475ARQZ

• 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: 16-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 ATTENUATORS)
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)
DIGITAL INPUT LOGIC LEVELS (TACH INPUTS)
1. All voltages are measured with respect to GND, unless otherwise specified. Typicals are at T
2. SMBus timing specifications are guaranteed by design and are not production tested.
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 (Voltage Input)
Conversion Time (Local Temperature)
Conversion Time (Remote Temperature)
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
parametric norm. Logic inputs accept input high voltages of up to V
specifications are tested at logic levels of V
OL
CC
Parameter
IL
IL
IH
IH
OL
OL
OH
OH
T
A
= T
IL
MIN
= 0.8 V for a falling edge and V
Interface inactive, ADC active
0°C ≤ T
0°C ≤ T
High level
Low level
8 bits
Averaging enabled
Averaging enabled
Averaging enabled
Averaging enabled
Averaging disabled
For V
0°C ≤ T
Fan count = 0xBFFF
Fan count = 0x3FFF
Fan count = 0x0438
Fan count = 0x021C
I
V
I
V
Maximum input voltage
Minimum input voltage
−40°C ≤ T
−40°C ≤ T
−40°C ≤ T
OUT
OUT
to T
OUT
OUT
MAX
= −8.0 mA
= −4.0 mA
CCP
= V
= V
http://onsemi.com
A
A
A
, V
≤ 85°C
≤ 85°C
≤ 70°C
CC
CC
A
A
channel
A
CC
≤ +125°C
≤ +125°C
≤ +120°C
Conditions
= V
4
MIN
MAX
to V
, even when the device is operating down to V
MAX
IH
, unless otherwise noted. (Note 1)
= 2.0 V for a rising edge.
−0.3
Min
3.0
2.0
2.0
70
A
= 25°C and represent the most likely
10,000
5000
±0.5
0.25
±0.5
0.25
±0.1
Typ
180
145
120
109
329
500
3.3
1.5
0.1
0.1
0.5
11
11
12
38
19
65,535
Max
±1.5
±2.5
±2.5
±1.5
±10
3.6
3.0
1.5
8.0
0.4
0.4
1.0
0.4
3.6
0.8
±1
±6
20
MIN
. Timing
V p−p
RPM
Unit
LSB
%/V
mA
mA
mV
mA
ms
ms
ms
ms
kW
mA
mA
°C
°C
%
%
V
V
V
V
V
V
V