8/24

BD63621MUV

TSZ02201-0P2P0B701290-1-2

© 2017 ROHM Co., Ltd. All rights reserved.

21.Dec.2020 Rev.002

www.rohm.com

TSZ22111・15・001

○Current decay mode

The IC allows for a mixed decay mode in which the ratio of fast and slow decay can be optionally set.

The following diagrams show the operating state of each transistor and the regenerative current path during attenuation for

each decay mode:

Input DECAY Mode 1（SELECT＝L）

Figure 5. Route of Regenerated Current during Current Decay(DECAY Mode 1)

Input DECAY Mode 2（SELECT＝H）

Figure 6. Route of Regenerated Current during Current Decay(DECAY Mode 2)

ON→OFF

OFF→ON

M

ON→OFF

OFF

FAST DECAY

SLOW DECAY

ON→OFF

OFF→ON

M

ON→ON

OFF→OFF

Output ON Time

Current Decay Time

ON→OFF

OFF

M

ON→OFF

OFF→ON

FAST DECAY

SLOW DECAY

ON→ON

OFF→OFF

M

ON→OFF

OFF→ON

Output ON Time

Current Decay Time