Datasheet > BD7844AEFV-LB

BD7844AEFV-LB

更新时间： 2024-11-05 01:21:03

品牌	Logo	应用领域
罗姆 - ROHM		/
页数	文件大小	规格书
18页	676K
描述
16-Channel, 8-Bit PWM LED Driver with I2C Compatible and 2-wire Serial Interface

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BD7844AEFV-LB 数据手册

Datasheet

16-Channel, 8-Bit PWM LED Driver

with I²C Compatible and

2-wire Serial Interface

BD7844AEFV-LB

General Description

Key Specifications

This is the product guarantees long time support in

Industrial market.

Operating power supply voltage range: 4.5V to 5.5V

LED output terminal current:

80mA (Max.)

Operating temperature range:

-40℃ to +85℃

BD7844AEFV-LB is LED Display Driver. It can control

16ch Nch Open Drain output for LED drive. It can

control the luminance of the LEDs by the setting of the

internal register, with 256 steps PWM control. It

supports I²C interface. HTSSOP-B28 (with Back-side

metal for heat radiation) package.

Package W(Typ.) x D(Typ.) x H(Max.)

Features

Long time support product for Industrial applications

16ch × 80mA (Absolute Maximum Rating)

Conforming to I²C -bus I/F (1MHz Fast mode Plus)

Either of interactive or single direction can be

selected with the I2CSEL pin. (2MHz clock

frequency on single direction)

HTSSOP-B28

9.70mm x 6.40mm x 1.00mm

Independent setting of output brightness is possible

by register setting for each channel. (PWM 256

steps)

Built-in thermal shutdown (TSD）circuit

Built-in power-on reset circuit

Applications

Industrial Equipment, LED indicators and illuminators for

Industrial or Home appliance，LED Signboards，Large

LED Displays，

Traffic Signboards, Amusement, hobby, etc.

Typical Application Circuit

4.5V – 5.5V

VLED (Max 20V)

4.7uF

VDD

BD7844AEFV-LB

OUT0

I2CSEL

RESETB

OUT1

SDA

SCL

From

Controller

OUT14

OUT15

GND

●Pin Configuration [TOP VIEW]

○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays

www.rohm.com

TSZ22111・14・001

TSZ02201-0G3G0CZ10310-1-2

26.Feb.2014 Rev.002

1/15

12 3 4 5 6 7...18

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