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Datasheet

Datasheet

BM2PXX4 Series

TSZ02201-0F2F0A200070-1-2

28.NOV.2012.Rev.003

© 2012 ROHM Co., Ltd. All rights reserved.

www.rohm.com

TSZ22111・15・001

●Description of Blocks

( 1 ) Start circuit (DRIAN : 6,7pin)

This IC built in Start circuit (tolerates 650V). It enables to be low standby mode electricity and high speed starting.

+

-

VCCUVLO

VCC

Cvcc

DRAIN

FUSE

+

-

Diode

Bridge

SW1

AC

85- 265 Vac

Figure 4. Block diagram of start circuit

Figure 5. Start current vs VCC voltage

Figure 6. Start time( reference value)

* Start current flows from the DRAIN pin

ex) Consumption power of start circuit only when the Vac=100V

PVH＝100V*√2*10uA=1.41mW

ex) Consumption power of start circuit only when the Vac=240V

PVH＝240V*√2*10uA=3.38mW

0.0 

0.1 

0.2 

0.3 

0.4 

0.5 

0.6 

0.7 

0.8 

0.9 

1.0 

0

5

10

15

20

25

30

35

40

45

50

Cvcc  [uF]