BH0170 데이터 시트보기 (PDF) - Fairchild Semiconductor

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BH0170

Green Mode Fairchild Power Switch (FPS™)

Fairchild Semiconductor 

Vo

VFB

KA431

Feedback Open

Loop

6V

PWM

3R

R

4.6V

56ms OLP

VDD Over-Voltage Protection (OVP)

VDD over-voltage protection prevents IC damage caused

by over voltage on the VDD pin. The OVP is triggered

when VDD voltage reaches 28V. Debounce time (typically

130µs) prevents false trigger by switching noise.

Over-Temperature Protection (OTP)

The SenseFET and the control IC are integrated,

making it easier to detect the temperature of the

SenseFET. When the temperature exceeds

approximately 142°C, thermal shutdown is activated.

Figure 34. OLP Operation

© 2009 Fairchild Semiconductor Corporation

FSBH0F70A, FSBH0170/A, FSBH0270/A, FSBH0370 • Rev. 1.0.1

14

www.fairchildsemi.com

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