TC647EOATR(2002) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

TC647EOATR
(Rev.:2002)

PWM Fan Speed Controller with FanSense™ Technology

Microchip Technology 

TC647

+5V

Analog or Digital

Temperature

Data from one or

more Sensors

Open-drain

Outputs

I/O0 (RESET) (Optional)

R1

I/O1 (MSB) 110 kΩ

CMOS

Outputs

I/O2

I/O3

R2

240 kΩ

R3

360 kΩ

CMOS

Microcontroller

(LSB)

R5

1.5 kΩ

+5V

R6

1 kΩ

CB

.01 µF

R4

R7

18 kΩ 33 kΩ

+5V

R8

18 kΩ

GND

INT

+12V

+5V

1

VIN

8

VDD CB +

1 µF

R9

2

+

CF

VOUT 7

800Ω

1 µF TC647

+5V

R10

3

6 10 kΩ

VMIN

FAULT

CB

.01 µF

4 GND

5

SENSE

0.1 µF

Fan

2N2222A

R11

2.2Ω

FIGURE 5-10:

TC647 as a Microcontroller Peripheral.

DS21447C-page 16

 2002 Microchip Technology Inc.

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