TC648BEUA [Microchip]

Name: TC648BEUA
Brand: Microchip
SKU: TC648BEUA
Availability: InStock

Part No:

TC648BEUA

Power Management ICs

Manufacturer:

Microchip

Description:

TC648B PWM fan speed controller with temperature proportional control, thermistor input, over temperature fault, shutdown

Stock Status:

Available for RFQ

Pricing:

Request Volume Pricing

Quote Response:

Within 24 Hours

Shipping:

In-stock parts ship in 1–2 business days

Specification

Type

Parameter

Device Description

Fan Manager

Typical Accuracy (°C)

Depends on External Thermistor

Over Temp Alert

Yes

SM Bus

Predictive Fan Fault

Max. Supply Current (µA)

400

Max Accuracy @ 25°C (°C)

Depends on External Thermistor

Integrated temp Sensor

Fan Sense

External Temp Input

Yes

Auto Shutdown

Yes

PWMFreq

Low

FanSpeedTable

Temp. Range Max. (°C)

+85

Temp. Range. Min. (°C)

-40

Vcc Range Max. (V)

+5.5

Vcc Range Min. (V)

+3.0

Products Detail

The TC648B is a new version of the existing TC648 fan speed controller. This device is a switch mode fan speed controller, which incorporates a new fan auto restart function. Temperature proportional speed control is accomplished using pulse width modulation. A thermistor (or other voltage output temperature sensor) connected to the VIN input supplies the required control voltage of 1.20V to 2.60V (typical) for 0% to 100% PWM duty cycle. The auto-shutdown speed is set by a simple resistor divider on the VAS input. An integrated Start-Up Timer ensures reliable fan motor start-up at turn-on, coming out of shutdown mode, auto-shutdown mode, or following a transient fault. A logic low applied to VIN, pin 1, causes fan shutdown. The OTF signal is asserted if the PWM reaches 100% duty cycle, indicating that maximum cooling capability has been reached and a possible thermal runaway condition exists.

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

Product FAQ

1. Is TC648BEUA available for RFQ?

Yes. TC648BEUA by Microchip is available for RFQ. Submit your required quantity and our team will confirm real-time stock, lead time, and volume pricing.

2. Why is there no fixed price for TC648BEUA?

Pricing for TC648BEUA can vary by order quantity, market availability, date code, packaging, and delivery destination. Request a quote to receive the latest volume pricing.

3. What are the key specifications of TC648BEUA?

TC648BEUA is a Microchip Power Management ICs with Max. Supply Current (µA): 400 and Max Accuracy @ 25°C (°C): Depends on External Thermistor. Review the product details or submit an RFQ if you need confirmation before purchase.

4. How fast can I get a quote for TC648BEUA?

Our sales team usually responds within 24 hours after receiving your RFQ. The quote may include stock status, unit price, lead time, shipping options, and available alternatives.

5. How soon can TC648BEUA be shipped?

If stock is confirmed, in-stock parts can usually ship within 1–2 business days. Final lead time depends on quantity, stock source, and delivery destination.

6. Can you suggest alternatives to TC648BEUA?

Yes. If TC648BEUA is unavailable, obsolete, or does not meet your required lead time, we can help check similar Microchip Power Management ICs parts or compatible alternatives.

RFQ

Part Number:

TC648BEUA

Manufacturer:

Microchip

Looking for Pricing? Contact us for volume pricing.

Shipping & Warranty

Fast Dispatch: Ships in 5-7 days(in-stock parts within 1-2 days)

Unishop Global Export: 1-7 days, $40.00

Guaranteed Delivery: Door-to-door in 30 days

Compliant Worldwide Shipping: DHL, FedEx, SF, and UPS.

Feature

30-Day Guarantee
Fasted Delivery
Hassle-Free Returns
Secure payment method

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.