Datasheet

Datasheet

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BD81A24MUV-M/EFV-M

TSZ02201-0T3T0C600070-1-2

© 2016 ROHM Co., Ltd. All rights reserved.

2016.10.19 Rev.003

www.rohm.com

TSZ22111・15・001

Timing Chart (Start up and Restart)

Figure 20. Start up and EN restart timing chart

*1 EN Low term when EN restart needs more 2.0ms

*2 Please restart after Vout voltage discharged. Vout discharge function (P.8) or external discharge switch is available. If

EN restart with Vout voltage remaining, there is possibility of LED flash.

VCC

EN

UVLO

SYNC

PWM

SS

ILED1

ILED2

ILED3

ILED4

VLED1

VLED2

VLED3

VLED4

FAIL1 *3

3.5V

VREG

①

Hi-z

Hi-z

Hi-z

Hi-z

1.0V

FAIL2 *3

SW/OUTL/

OUTH

4.5V

2.0V

3.5V

2.0ms *1

1.0V

Hi-z

Hi-z

Hi-z

Hi-z

VOUT

VOVP

1.0V

1.0V