Microchip TC648EOA

Manufacturer No:

TC648EOA

Manufacturer:

Microchip

Package:

8-SOIC (0.154, 3.90mm Width)

Description:

TC648 PWM fan speed controller with temperature proportional control, thermistor input, over temperature fault, shutdown

Quantity:

Delivery:

Payment:

In Stock :Available

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TC648EOA information

Microchip TC648EOA technical specifications, attributes, parameters and parts with similar specifications to Microchip TC648EOA.

Type
Parameter

Device Description
Fan Manager

Typical Accuracy (°C)
Depends on external thermistor

Over Temp Alert
Yes

SM Bus
No

Predictive Fan Fault
No

Max. Supply Current (µA)
1000

Max Accuracy @ 25°C (°C)
Depends on external thermistor

Integrated temp Sensor
No

Fan Sense
No

External Temp Input
Yes

Auto Shutdown
Yes

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 TC648EOA.

The TC648 is a switch mode fan speed controller for use with brushless DC motors. Temperature proportional speed control is accomplished using pulse width modulation(PWM). A thermistor (or other voltage output temperature sensor) connected to the VIN input furnishes the required control voltage of 1.25V to 2.65V(typical) for 0% to 100% PWM duty cycle. The TC648 can be configured to operate in either Auto-Shutdown or Minimum Speed mode. In Auto-Shutdown mode,fan operation is automatically suspended when measured temperature (VIN) is lower than a user-programmed minimum setting (VAS). The fan is automatically restarted and proportional speed control restored when VIN exceeds VAS (plus hysteresis). Operation in Minimum Speed mode is similar to Auto-Shutdown mode, except the fan is operated at a user-programmed minimum setting when measured temperature is low. An integrated Start-Up Timer ensures reliable motor start-up at turn-on, or when coming out of Shutdown mode. The over-temperature fault (OTF) is asserted when the PWM reaches 100% duty cycle, indicating a possible thermal runaway situation. The TC648 is packaged in a space-saving 8-pin plastic DIP, MSOP or SOIC package and is available in the industrial temperature range.

Temperature Proportional
Fan Speed for Acoustic Control and Longer Fan Life
Efficient PWM Fan Drive
3.0V to 5.5V Supply Range
Fan Voltage Independent of TC648 Supply Voltage - Supports Any Fan Voltage!
Over-Temperature Fault Detection
Automatic Shutdown Mode for "Green" Systems
Supports Low Cost NTC/PTC Thermistors

User Guide

PURCHASE

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MEANS OF PAYMENT

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IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step4：Individual Package

Step5：Anti-collision Filling

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.