TC651BEVUA データシートの表示（PDF） - Microchip Technology

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TC651BEVUA

Tiny Integrated Temperature Sensor & Brushless DC Fan Controller with Over-Temperature Alert

Microchip Technology 

TC650/TC651

2.0 PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 2-1.

TABLE 2-1: PIN FUNCTION TABLE

Pin No.

(8-Pin MSOP)

(8-Pin SOIC)

Symbol

Description

1

VDD Power Supply Input. May be independent of fan power supply.

2

NC No Internal Connect.

3

SHDN Fan Shutdown, Active-Low Input. During Shutdown mode the chip still monitors temper-

ature and TOVER is low if temperature rises above factory set point.

4

GND Ground. Ground return for all TC650/TC651 functions.

5

NC No Connect.

6

TOVER Over-Temperature Alert, Active-Low Output.

7

GND Ground.

8

PWM PWM Fan Drive Output. Pulse width modulated rail-to-rail logic output. Nominal

Frequency is 15Hz.

DS21450B-page 4

© 2002 Microchip Technology Inc.

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