ADM1030ARQ-REEL ON Semiconductor, ADM1030ARQ-REEL Datasheet - Page 4

• Manufacturer Part Number: ADM1030ARQ-REEL
• Description: IC SNSR TEMP/FAN PWM CTRL 16QSOP
• Manufacturer: ON Semiconductor

Specifications of ADM1030ARQ-REEL

• Rohs Status: RoHS non-compliant
• Function: Fan Control, Temp Monitor
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: 0°C ~ 100°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 5.5 V
• Operating Temperature: 0°C ~ 100°C
• Mounting Type: Surface Mount
• Package / Case: 16-QSOP

Pin No.
1
2
3, 4, 11, 12
5
6
7
8
9
10
13
14
16
15
ADM1030
Mnemonic
PWM_OUT
TACH/AIN
NC
GND
V
THERM
FAN_FAULT
D–
D+
ADD
INT
SDA
SCL
CC
Description
Digital Output (Open-Drain). Pulsewidth modulated output to control fan speed. Requires pull-up
resistor (10 kW typical).
Digital/Analog Input. Fan tachometer input to measure fan speed. May be reprogrammed as an
analog input to measure speed of a 2-wire fan via a sense resistor (2 W typical)
Not Connected.
System Ground.
Power. Can be powered by 3.3 V Standby power if monitoring in low power states is required.
Digital I/O (Open-Drain). An active low thermal overload output that indicates a violation of a
temperature set point (overtemperature). Also acts as an input to provide external fan control.
When this pin is pulled low by an external signal, a status bit is set, and the fan speed is set to full-on.
Requires pull-up resistor (10 kW).
Digital Output (Open-Drain). Can be used to signal a fan failure. Requires pull-up resistor
(typically 10 kW).
Analog Input. Connected to cathode of an external temperature-sensing diode. The temperature-
sensing element is either a Pentium III substrate transistor or a general-purpose 2N3904.
Analog Input. Connected to anode of the external temperature-sensing diode.
Three-state Logic Input. Sets two lower bits of device SMBus address.
Digital Output (Open-Drain). Can be programmed as an interrupt output for temperature/fan
speed interrupts. Requires pull-up resistor (10 kW typical).
Digital I/O. Serial Bus Bidirectional Data. Open-drain output. Requires pull-up resistor
(2.2 kW typical).
Digital Input. Serial Bus Clock. Requires pull-up resistor (2.2 kW typ).
PIN FUNCTION DESCRIPTIONS
FAN_FAULT
PWM_OUT
TACH/AIN
Rev. 2 | Page 4 of 29 | www.onsemi.com
THERM
PIN CONFIGURATION
GND
V
NC
NC
CC
NC = NO CONNECT
1
2
3
4
5
6
7
8
(Not to Scale)
ADM1030
TOP VIEW
–4–
16
15
14
13
12
11
10
9
SCL
SDA
INT
ADD
NC
NC
D+
D–
REV. A