Product Information

TC642EUA

TC642EUA electronic component of Microchip

Datasheet
Motor / Motion / Ignition Controllers & Drivers w/Fault Dtct

Manufacturer: Microchip
This product is classified as Large/Heavy, additional shipping charges may apply. A customer service representative may contact you after ordering to confirm exact shipping charges



Price (USD)

1: USD 2.4574 ea
Line Total: USD 2.4574

189 - Global Stock
Ships to you between
Tue. 17 Oct to Thu. 19 Oct
MOQ: 1  Multiples: 1
Pack Size: 1
Availability Price Quantity
189 - Global Stock


Ships to you between Tue. 17 Oct to Thu. 19 Oct

MOQ : 1
Multiples : 1

Stock Image

TC642EUA
Microchip

1 : USD 2.4574
25 : USD 2.0817
100 : USD 1.997

38 - Global Stock


Ships to you between Wed. 11 Oct to Tue. 17 Oct

MOQ : 1
Multiples : 1

Stock Image

TC642EUA
Microchip

1 : USD 2.86
5 : USD 2.782
6 : USD 2.483
17 : USD 2.353
100 : USD 2.327

     
Manufacturer
Microchip
Product Category
Motor/Motion/Ignition Controllers & Drivers
RoHS - XON
Y Icon ROHS
Product
Fan / Motor Controllers / Drivers
Type
Controller - Pwm Fan
Operating Supply Voltage
6 V
Operating Supply Current
1 mA
Minimum Operating Temperature
- 40 C
Maximum Operating Temperature
+ 85 C
Package / Case
MSOP - 8
Mounting Style
Smd/Smt
Packaging
Tube
Operating Temperature Range
- 40 C to + 85 C
Series
Tc642
Brand
Microchip
Cnhts
8542319000
Hts Code
8542390001
Mxhts
85423999
Product Type
Motor / Motion / Ignition Controllers & Drivers
Factory Pack Quantity :
100
Subcategory
Pmic - Power Management Ics
Taric
8542399000
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TC642 PWM Fan Speed Controller with FanSense Technology Features Package Types SOIC/PDIP/MSOP Temperature Proportional Fan Speed for Acoustic Control and Longer Fan Life V V IN18 DD Efficient PWM Fan Drive C V 3.0V to 5.5V Supply Range: 27 F OUT TC642 - Fan Voltage Independent of TC642 V MIN36 FAULT Supply Voltage GND45 SENSE - Supports any Fan Voltage Fault Detection Circuits Protect FanSense Against Fan Failure and Aid System Testing General Description Shutdown Mode forGree Systems The TC642 is a switch mode fan speed controller for Supports Low Cost NTC/PTC Thermistors use with brushless DC fans. Temperature proportional Space Saving 8-Pin MSOP Package speed control is accomplished using pulse width mod- Over-temperature Indication ulation (PWM). A thermistor (or other voltage output temperature sensor) connected to the V input fur- IN Applications nishes the required control voltage of 1.25V to 2.65V Power Supplies (typical) for 0% to 100% PWM duty cycle. Minimum fan speed is set by a simple resistor divider on the V Personal Computers MIN input. An integrated Start-up Timer ensures reliable File Servers motor start-up at turn-on, coming out of shutdown Telecom Equipment mode or following a transient fault. A logic low applied UPSs, Power Amps, etc. to V (Pin 3) causes fan shutdown. MIN General Purpose Fan Speed Control The TC642 also features Microchip Technology s pro- prietary FanSense technology for increasing system Available Tools reliability. In normal fan operation, a pulse train is pres- ent at SENSE (Pin 5). A missing pulse detector moni- Fan Controller Demonstration Board (TC642DEMO) tors this pin during fan operation. A stalled, open or Fan Controller Evaluation Kit (TC642EV) unconnected fan causes the TC642 to trigger its Start- up Timer once. If the fault persists, the FAULT output goes low and the device is latched in its shutdown mode. FAULT is also asserted if the PWM reaches 100% duty cycle, indicating a possible thermal runaway situation, although the fan continues to run. See Section5.0, Typical Applications, for more information and system design guidelines. The TC642 is available in the standard 8-pin plastic DIP, SOIC and MSOP packages and is available in the commercial, extended commercial and industrial temperature ranges. 2001-2012 Microchip Technology Inc. DS21444D-page 1TC642 Functional Block Diagram + V IN V DD V OTF + OTF SHDN + Control Logic V OUT C F 3 x T PWM Timer Clock Generator FAULT Start-up V Timer MIN + V SHDN Missing Pulse Detect TC642 SENSE 10k GND 70mV (typ.) DS21444D-page 2 2001-2012 Microchip Technology Inc. +

Tariff Desc

8542.39.23 No ..Linear/analogue and peripheral integrated circuits, timers, voltage regulators, A/D and D/A converters, telecommunication and modem integrated circuits, other than board level products Free

Electronic integrated circuits- Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
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