Specification	ADM1027ARQZ-REEL

Accuracy	1 °C
Function	Fan Control, Temp Monitor
Mounting Type	Surface Mount
Operating Temperature [Max]	105 ░C
Operating Temperature [Min]	0 °C
Output Alarm	False
Output Fan	True
Output Type	SMBus
Package / Case	24-SSOP
Package / Case [custom]	0.154 ", 3.9 mm
Sensing Temperature	External Sensor
Sensing Temperature [Max]	105 °C
Sensing Temperature [Min]	0 °C
Sensor Type	Internal and External
Supplier Device Package	24-QSOP
Topology	Comparator, Fan Speed Counter, ADC, Register Bank, Multiplexer
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	3 V

ADM1027 Series

Part	Package / Case	Package / Case [custom]	Sensor Type	Operating Temperature [Max]	Operating Temperature [Min]	Output Fan	Supplier Device Package	Sensing Temperature	Sensing Temperature [Max]	Sensing Temperature [Min]	Output Type	Mounting Type	Function	Topology	Output Alarm	Accuracy	Voltage - Supply [Max]	Voltage - Supply [Min]
ON Semiconductor ADM1027ARQ-REEL7	24-SSOP	0.154 " 3.9 mm	Internal and External	105 ░C	0 °C		24-QSOP	External Sensor	105 °C	0 °C	SMBus	Surface Mount	Fan Control Temp Monitor	ADC Comparator Fan Speed Counter Multiplexer Register Bank		1 °C	5.5 V	3 V
ON Semiconductor ADM1027ARQZ-REEL	24-SSOP	0.154 " 3.9 mm	Internal and External	105 ░C	0 °C		24-QSOP	External Sensor	105 °C	0 °C	SMBus	Surface Mount	Fan Control Temp Monitor	ADC Comparator Fan Speed Counter Multiplexer Register Bank		1 °C	5.5 V	3 V

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Description

General part information

ADM1027 Series

The ADM1027 controller is a complete systems monitor and multiple PWM fan controller for noise sensitive applications requiring active system cooling. It can monitor 12 V, 5 V, 2.5 V CPU supply voltage, plus its own supply voltage it can monitor the temperature of up to two remote sensor diodes, plus its own internal temperature. It can measure and control the speed of up to four fans so that they operate at the lowest possible speed for minimum acoustic noise. The automatic fan speed control loop optimizes fan speed for a given temperature. Once the control loop parameters are programmed, the ADM1027 can vary fan speed without CPU intervention.