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TSZ02201-0S2S0C700240-1-2

© 2020 ROHM Co., Ltd. All rights reserved.

BD68888MUV

14.Sep.2020 Rev.001

www.rohm.com

TSZ22111•15•001

PWM Constant Current Control – continued

4 Current Decay Mode

The current decay method is SLOW DECAY for PWM Constant Current Control.

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

SLOW DECAY mode:

Figure 2. Route of Regenerated Current during Current Decay

ON→OFF

OFF→ON

M

ON→ON

OFF→OFF

Output ON Time

Current Decay Time