Key facts
- Brand
- MICROCHIP
- Model
- TC650
- Category
- Other Electronics
- Documents
- 2
- Languages
- EN · JA
- Last added
- 2012-06-12
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Microchip TC650/TC651 Tiny Integrated Temperature Sensor & Brushless DC Fan Controller Datasheet
The TC650/TC651 are integrated temperature sensors and brushless DC fan speed controllers designed for thermal protection in electronic equipment such as personal computers, set-top boxes, and projectors. They measure junction temperature and control fan speed proportionally to reduce acoustic noise and extend fan life.
These devices feature solid-state sensing with a typical accuracy of +1°C from 25°C to +70°C. The TC650 offers multi-speed fan control ranging from 40% to 100%, while the TC651 includes an auto-fan shutdown function for power savings when temperatures are low. Both models include a built-in over-temperature alert (TOVER) that triggers at a set point plus 10°C.
MICROCHIP TC650 specifications
| Supply Voltage Range | 2.8V — 5.5V |
|---|---|
| Operating Temperature Range | -40°C to +125°C |
| Temperature Accuracy | +1°C (Typical) |
| Supply Current | 50uA (Typical) |
| PWM Frequency | 15 Hz |
Source: Microchip TC650/TC651 Tiny Integrated Temperature Sensor & Brushless DC Fan Controller Datasheet
All MICROCHIP TC650 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the typical accuracy of the TC650/TC651 temperature sensor?
The device has a typical accuracy of +1°C from 25°C to +70°C.
From: Microchip TC650/TC651 Tiny Integrated Temperature Sensor & Brushless DC Fan Controller Datasheet
Does the TC651 include an auto-fan shutdown feature?
Yes, the TC651 includes an auto fan shutdown function for additional power savings when temperatures are below the factory set point.
From: Microchip TC650/TC651 Tiny Integrated Temperature Sensor & Brushless DC Fan Controller Datasheet
What supply voltage range do the TC6501‑TC6504 devices require?
They operate with a supply voltage from –0.3 V up to +7 V.
What is the allowed operating temperature range for these sensors?
The devices can operate from –55 °C to +135 °C.