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

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TSZ02201-0G3G0C200060-1-2

10.Dec.2015 Rev.002

www.rohm.com

© 2012 ROHM Co., Ltd. All rights reserved.

TSZ22111･14･001

Constant Current LED Driver

with 64 Dimming Steps for up to 4 LEDs

BD1754HFN

General Description

BD1754HFN is a multi-level brightness control LED

Driver that works as a constant current driver with 64

steps, so that the driving current can be adjusted finely.

BD1754HFN is best suited to turn ON LEDs that require

high-accuracy LED brightness control.

Features

 Current Regulation for up to 4 Parallel LEDs

 Adjustable Constant Current with 64 Steps

 High Accuracy and Good Matching of each Current

Channel (0.5% Typ)

 Brightness Control Via Single-Line Digital Control

Interface (Uni-Port Interface Control = UPIC)

Applications

This driver can be used in various applications such as

mobile phones, portable game consoles and etc.

Typical Application Circuit

Key Specification

 Operating Power Supply Voltage Range:

2.7V to 5.5V

 Quiescent Current:

0.1μA (Typ)

 Operating Temperature Range:

-30°C to +85 °C

Package

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

BD1754HFN

IN

ISET

GND

EN

L4

L3

L2

L1

Power Supply

0.1µF

120k

Ω

HSON8

2.90mm x 3.00mm x 0.60mm

Datasheet

Datasheet