BD7851FP

更新时间： 2024-11-25 22:27:27

品牌	Logo	应用领域
罗姆 - ROHM		驱动器移位寄存器
页数	文件大小	规格书
3页	570K
描述
LED driver IC with built-in 16bit shift register

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BD7851FP 数据手册

01W079B

LED driver IC with built-in 16bit shift register

BD7851FP

Description

Dimension (Units : mm)

The BD7851FP is a constant-current output LED

driver that incorporates a shift register and latch

circuit, which drives 16 LED lamps. Output value

of the constant-current can be set from 1mA to

50mA (Max.) by a single external resistor.

13.6 0.2

2.75 0. 1

In addition, this IC incorporates a thermal-shut-down

circuit which detects the IC temperature rising and

turns the constant-current output OFF.

1.95 0. 1

0.36 0. 1

0.3Min.

0.8

0. 15

Features

1) Drive capability: constant-current output 50mA (Max.)

2) Can set the constant-current output value by one external resistor.

3) 3 wire serial (Data, Clock, Latch) control from micro computer

4) With ENABLE pin

HSOP25

5) Power ON reset function

6) Built-in thermal-shut-down circuit

7) Low power consumption

8) Cascade connection

9) Allows multiple LED displays due to the dynamic operation.

10) Small power package HSOP25

Applications

All sets having micro computers and LED displays

Absolute Maximum Ratings (Ta=25˚C)

Parameter

Symbol

Vcc

Limits

Unit

Power supply voltage

0 ~ 7.0

–0.3 ~ Vcc+0.3

⁰~ ¹⁰

Input voltage

Output voltage

˚C

Power dissipation

1450

Tstg

Topr

Storage temperature range

–55 ~ +150

–20 ~ +85

Operating temperature range

*^{Derating : –11.6mW/˚C for operation above Ta=25˚C}PCB (70mm×70mm×1.6mm glass epoxy board)

April, 2001

12 3

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