Overview
The ADM1030ARQZ-RL7, produced by onsemi, is an intelligent temperature monitor and PWM (Pulse Width Modulation) fan controller. This device is ACPI-compliant and designed for use in computers and thermal management systems. It is optimized for the Pentium III processor, allowing for reduced temperature guardbanding and increased system performance. The ADM1030ARQZ-RL7 features automatic fan speed control, remote and local temperature sensing, and various monitoring and control functions to ensure optimal system temperature management.
Key Specifications
| Parameter | Value |
|---|---|
| Accuracy | ±1°C (remote), ±0.25°C (local) |
| Topology | ADC, Comparator, Multiplexer, Register Bank |
| Output Type | SMBus |
| Output Alarm | Yes |
| Temperature Range | 0°C to 100°C |
| PWM Duty Cycle | 33% to 100% |
| PWM Frequency | Programmable |
| Supply Voltage | 3 V to 5.5 V |
| Package | 16-QSOP |
Key Features
- Optimized for Pentium III: Allows reduced guardbanding and increased system performance.
- Automatic fan speed control independent of CPU intervention after initial setup.
- Remote temperature measurement accurate to ±1°C using a remote diode.
- Local temperature sensor with 0.25°C resolution.
- Pulsewidth modulation fan control with programmable PWM frequency and duty cycle.
- Tach fan speed measurement and 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-RL7?
The primary function is to monitor temperature and control fan speed using PWM. - What is the accuracy of the remote temperature measurement?
The accuracy is ±1°C. - What is the resolution of the local temperature sensor?
The resolution is 0.25°C. - Can the PWM duty cycle be programmed?
Yes, the PWM duty cycle can be programmed between 33% and 100%. - What type of bus does the ADM1030ARQZ-RL7 use?
The device uses a 2-wire System Management Bus (SMBus) with ARA support. - What is the supply voltage range for the ADM1030ARQZ-RL7?
The supply voltage range is 3 V to 5.5 V. - Does the device have a shutdown mode to minimize power consumption?
Yes, it does have a shutdown mode. - Can the fan speed be monitored and controlled without CPU intervention?
Yes, the device has a dedicated fan speed control loop that operates independently of CPU software. - What type of package does the ADM1030ARQZ-RL7 come in?
The device comes in a 16-QSOP package. - Is the ADM1030ARQZ-RL7 Pb-free?
Yes, the device is Pb-free.
