Overview
The ADM1030ARQZ-REEL, produced by onsemi, is an ACPI-compliant two-channel digital thermometer and under/over temperature alarm designed for use in computers and thermal management systems. It is optimized for systems like the Pentium III and offers high accuracy, allowing for reduced temperature guardbanding and increased system performance. The device also features a Pulsewidth Modulated (PWM) Fan Control output to manage cooling fan speed and includes a TACH input for monitoring fan speed.
Key Specifications
| Parameter | Value |
|---|---|
| Supply Voltage | 3 V to 5.5 V |
| Operating Temperature | 0°C to 100°C |
| Accuracy | ±1°C |
| Sensor Type | Internal and External |
| Topology | ADC, Comparator, Multiplexer, Register Bank |
| Output Type | SMBus |
| Package / Case | 16-SSOP (0.154", 3.90mm Width) |
| Mounting Type | Surface Mount |
| PWM Frequency | Programmable |
| PWM Duty Cycle | Programmable (33%–100%) |
| Fan Speed Measurement | TACH input, Analog input for 2-wire fans |
Key Features
- ACPI-compliant two-channel digital thermometer and under/over temperature alarm
- Pulsewidth Modulated (PWM) Fan Control output with programmable PWM frequency and duty cycle (33%–100%)
- TACH input for fan speed measurement and detection of stalled fans
- Analog input to measure fan speed of 2-wire fans using a sense resistor
- 2-wire System Management Bus (SMBus) with ARA support
- Overtemperature THERM output pin and programmable INT output pin
- Configurable offset for all temperature channels
- Shutdown mode to minimize power consumption
Applications
- Notebook PCs
- Network Servers
- Personal Computers
- Telecommunications Equipment
Q & A
- What is the primary function of the ADM1030ARQZ-REEL?
The primary function is to serve as an ACPI-compliant two-channel digital thermometer and under/over temperature alarm, along with PWM fan control.
- What is the operating temperature range of the ADM1030ARQZ-REEL?
The operating temperature range is 0°C to 100°C.
- What is the accuracy of the temperature measurements?
The accuracy is ±1°C.
- How does the ADM1030ARQZ-REEL control fan speed?
The device controls fan speed through a Pulsewidth Modulated (PWM) output with programmable PWM frequency and duty cycle.
- Can the ADM1030ARQZ-REEL detect a stalled fan?
Yes, it can detect a stalled fan.
- What communication bus does the ADM1030ARQZ-REEL use?
The device uses a 2-wire System Management Bus (SMBus) with ARA support.
- What is the supply voltage range for the ADM1030ARQZ-REEL?
The supply voltage range is 3 V to 5.5 V.
- What type of package does the ADM1030ARQZ-REEL come in?
The device comes in a 16-SSOP (0.154", 3.90mm Width) package.
- Is the ADM1030ARQZ-REEL RoHS compliant?
The RoHS status is not explicitly mentioned, but it is a Pb-Free device.
- What are some common applications for the ADM1030ARQZ-REEL?
Common applications include notebook PCs, network servers, personal computers, and telecommunications equipment.
