| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
|---|---|---|---|---|---|---|---|---|---|
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46 pcs
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46 pcs | On Request | 1 | On Request | On Request | 2026-02-25 06:16:38 | On Request | On Request |
| Category | |
| Manufacturer Name | |
| Features | |
| Interface | |
| Mounting Type | |
| Tape & Reel |
The ADT7490ARQZ-REEL by Texas Instruments is a versatile thermal monitor and fan controller designed for noise-sensitive and power-sensitive applications requiring active system cooling.
This device integrates a local on-chip temperature sensor and two remote temperature sensors with series resistance cancellation. It monitors CPU temperature via a PECI interface and supports up to four PECI inputs on a single pin. The ADT7490 can drive fans using either low or high frequency PWM signals and measure the speed of up to four fans, ensuring they operate at the lowest possible speed for minimal acoustic noise.
Key features include an OS-independent automatic fan speed control loop that optimizes fan speed based on thermal information, a dynamic TMIN control mode for acoustic optimization, and a default startup at 100% PWM for all fans. It also provides critical thermal protection using a bidirectional THERM/SMBALERT pin and offers GPIO functionality for additional features like loadline setting or LED control. IMON monitoring is available for CPU current and power information.
The ADT7490ARQZ-REEL is supplied in a QSOP-24 NB package suitable for surface mounting. It is footprint and register compatible with the ADT7473/ADT7475/ADT7476/ADT7476A family of fan controllers.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.47 | $1.47 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
It supports one local on-chip temperature sensor and two remote temperature sensors, with the capability to monitor up to three external temperature sensors with series resistance cancellation.
The device features PECI and SMBus interfaces.
It uses PWM outputs for fan speed control and TACH inputs to measure fan speed, supporting up to four fans.
Key features include automatic fan speed control, dynamic TMIN control for acoustics, default 100% PWM startup, a bidirectional THERM/SMBALERT pin, GPIO functionality, and IMON monitoring.
It is supplied in a QSOP-24 NB package.
The RoHS status is RoHS3 Compliant.
The Moisture Sensitivity Level is 1 Unlimited.