Microchip TC654EUNTR
Manufacturer No:
TC654EUNTR
Manufacturer:
Microchip
Package:
10-TFSOP, 10-MSOP (0.118, 3.00mm Width)
Description:
TC654 Dual PWM fan speed controller with thermistor input, temperature proportional speed control, SMBus speed programming
Quantity:
In Stock :6243
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Shipped from：HK Warehouse
Expected Shipping：Sun, May 31 - Mon, Jun 1, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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TC654EUNTR Information
Microchip TC654EUNTR technical specifications, attributes, parameters and parts with similar specifications to Microchip TC654EUNTR.
- Type
- Parameter
- Device Description
- Programmable Dual Fan Manager
- Typical Accuracy (°C)
- Depends on external thermistor
- Over Temp Alert
- No
- SM Bus
- Yes
- Predictive Fan Fault
- Yes
- Max. Supply Current (µA)
- 320
- Max Accuracy @ 25°C (°C)
- Depends on external thermistor
- Integrated temp Sensor
- No
- Fan Sense
- Yes
- External Temp Input
- Yes
- Type
- Parameter
- Auto Shutdown
- No
- PWMFreq
- Low
- FanSpeedTable
- No
- Temp. Range Max. (°C)
- +85
- Temp. Range. Min. (°C)
- -40
- Vcc Range Max. (V)
- +5.5
- Vcc Range Min. (V)
- +3.0
Download datasheets and manufacturer documentation for Microchip TC654EUNTR.
Application Notes:
Brochures:
Data Sheets:
The TC654 is a dual PWM mode fan speed controller with FanSense™ TM technology for use with brush-less DC motors. The device allows temperature proportional speed control and therefore accomplishes lower acoustic fan noise and longer fan life. The TC654 reads the voltage provided by an external ther-mistor (or voltage output temperature sensor) and adjusts a 30% to 100% PWM duty cycle output to the fan with respect to the input temperature voltage. The PWM duty cycle can also be programmed via SMBus to allow fan speed control without the need of an external thermistor.
In normal fan operation, pulse trains are present at the SENSE pin. These pulses are used to calculate the fan RPM. The fan RPM data is used to detect a worn out, stalled, open or unconnected fan. An RPM level below the user-programmable threshold causes the TC654 to assert a logic low alert signal (FAULT). Thedefault value is 500RPM. The TC654 consumes only 0.3mA during operation and can also enter a low-power shutdown mode by setting the appropriate bit in the configuration register.
- Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life
- FanSense™ Protects Against Fan Failure
- Provides RPM Data
- 2-wire SMBus Compatible Interface
- 3.0V to 5.5V Supply Range
- Fan Voltage Independent of Supply Voltage – Supports Any Fan Voltage
- Supports Low Cost NTC/PTC Thermistors
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Listed Part Number
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