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2009.06 - Rev.A

© 2009 ROHM Co., Ltd. All rights reserved.

Serial-in / Parallel-out Driver Series

Serial / Parallel

4-input Drivers

BU2050F,BU2092F,BU2092FV,BU2099FV,BD7851FP,BU2152FS

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Description

Serial-in-parallel-out driver incorporates a built-in shift register and a latch circuit to control a maximum of 24 LED by a 4-line

interface, linked to a microcontroller.

A single external resistor can set the output current value of the constant current up to a maximum of 50mA. (BD7851FP only)

CMOS open drain output type products can drive the maximum current of 25mA.

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Features

1) LED can be driven directly.

2) Parallel output of a maximum of 24 bit

3) Operational on low voltage (2.7V to 5.5V)

4) Cascade connection is possible (BU2050F and BU2092F,BU2092FV are not acceptable)

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Application

For AV equipment such as, audio stereo sets, videos and TV sets, PCs, control microcontroller mounted equipment.

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Product line-up

Parameter

BU2050F

BU2092F

BU2092FV

BU2099FV

BD7851FP

BU2152FS

Unit

Output current

25

25

25

25

50

25

mA

Output line

8

12

12

12

16

24

line

Output type

CMOS

Open drain

Constant

current

CMOS

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Package

SOP14

SOP18

SSOP-B20

SSOP-B20

HSOP25

SSOP-A32

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No.09051EAT03