BD8203EFV-E2(2010) データシートの表示（PDF） - ROHM Semiconductor

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BD8203EFV-E2
(Rev.:2010)

5ch System Moter Driver

ROHM Semiconductor 

BD8203EFV

④3.6V changeable regulator 2

3.3V

10kΩ

REGCTL

REG-RST

8V

PREVCC

5V

REGVARVCC

REGVAR

3.6V

10uF

Technical Note

◎Regulator 2 controls

ON/OFF of regulator 2 can control with REGRST terminal.

REGRST

Regulator 2

Low

OFF

High

ON

◎Vcc-Vo Characteristic

PREVCC=8V

REGCTL=3.3V

3.6V

REGVARVCC

REGVAR

REGVARVCC=5.0V

REGCTL=3.3V

REGVARON_PREVCC

3.6V

PREVCC

REGVAR

0V

0V

◎REGCTL－Vo Characteristic

It is changeable according to the terminal REGCTL in linear as for the output voltage of REGVAR.

The range of REGVAR of the output voltage setting is 0.5-4.1V(At REGVARVCC=5V (typ.)).

REGVAR [V]

4.1

3.6

0.5

0

0.46

ΔV =

ΔREGVAR

ΔREGCTL

≒ 1.09

Setting

range

3.3

3.76

REGCTL [V]

◎Timing chart

3.6V

REGVAR

0V

High

REGRST

Low

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11/21

2010.02 - Rev.A

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