http://www.belling.com.cn

- 7-

8/8/2006

BL8501

Its breakdown voltage between gate and source should be a few V higher than Input Voltage.

In the case of Input Voltage is low, to turn on MOSFET completely, to use a MOSFET with low

threshold voltage is effective.

If a large load current is necessary for your application and important, choose a MOSFET

with low ON resistance for good efficiency.

If a small load current is mainly necessary for your application, choose a MOSFET with low

gate capacity for good efficiency.

Maximum continuous drain current of MOSFET should be larger than peak current,

TEST CIRCUITS

1

FB

V

Feedback Voltage

2

osc

f

(Oscillator frequency)