ADM1034ARQZ-R7 ON Semiconductor, ADM1034ARQZ-R7 Datasheet - Page 3

• Manufacturer Part Number: ADM1034ARQZ-R7
• Description: IC THERM/FAN SPEED CTLR 16-QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1034ARQZ-R7

• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 125°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. During powerup the voltage on FAN_FAULT should not be higher than V
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
NOTE:
ABSOLUTE MAXIMUM RATINGS
THERMAL CHARACTERISTICS
PIN ASSIGNMENT
Positive Supply Voltage (V
Voltage on Any Input or Output Pin except FAN_FAULT and LOCATION
Voltage on FAN_FAULT (Note 1)
Voltage on LOCATION
Input Current at Any Pin
Maximum Junction Temperature (T
Storage Temperature Range
Lead Temperature, Soldering (10 s)
IR Reflow Peak Temperature
ESD Rating − All Pins
16−Lead QSOP Package
Pin No.
10
12
13
14
15
16
11
1
2
3
4
5
6
7
8
9
This device is ESD sensitive. Use standard ESD precautions when handling.
FAN_FAULT/REF
LOCATION
Mnemonic
DRIVE1
DRIVE2
THERM
TACH1
TACH2
ALERT
GND
VCC
SDA
SCL
D1−
D1+
D2−
D2+
CC
)
Parameter
J
DRIVE1 Pin Drives Fan 1. Open−drain output. Requires a pullup resistor.
Fan 1 Fan Speed Measurement Input. Connects to the fan’s TACH output to measure the fan speed.
DRIVE2 Pin Drives Fan 2. Open−drain output. Requires a pullup resistor.
Fan 2 Fan Speed Measurement Input. Connects to the fan’s TACH output to measure the fan speed.
Ground for Analog and Digital Circuitry.
Power. Can be powered by 3.3 V standby power if monitoring in low power states is required.
Can be configured as an overtemperature interrupt output, or as an input (to monitor PROCHOT
output of an INTEL CPU). A timer measures assertion times on the THERM pin (either input or output).
FAN_FAULT: Open−Drain Output. Asserted low when one or both fans stall. Requires a pullup
resistor to V
Cathode Connection for the First Thermal Diode or Diode−Connected Transistor.
Anode Connection for the First Thermal Diode or Diode−Connected Transistor.
Cathode Connection for the Second Thermal Diode or Diode−Connected Transistor.
Anode Connection for the Second Thermal Diode or Diode−Connected Transistor.
8−Level Analog Input. Used to determine the correct SMBus version and the SMBus address (in
fixed and discoverable mode) and to set the LLL bits in the UDID (in ARP−capable mode).
Open−Drain Output. SMBusALERT pin. Alerts the system in the case of out−of−limit events, such as
over temperature. Can be configured as sticky SMBus mode or comparator mode.
Serial Bus Bidirectional Data. Connects to the SMBus master’s data line. Requires pullup resistor if
not provided elsewhere in the system.
Serial SMBus Clock Input. Connects to the SMBus master’s clock line. Requires pullup resistor if not
already provided in the system.
max)
Parameter
CC
. REF: Analog Input Reference for the THERM Input.
http://onsemi.com
3
CC
.
Description
−0.3 to V
−65 to +150
−0.3, +6.5
V
Rating
CC
1500
V
±20
150
300
220
CC
+ 0.3
DD
q
+6.5
JA
= 150°C/W, q
Rating
JC
= 39°C/W
Unit
mA
°C
°C
°C
°C
V
V
V
V