BD1754HFN_15 Datasheet, PDF (1/21 Pages) Rohm – Constant Current LED Driver

Datasheet
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)
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)
Applications
This driver can be used in various applications such as
mobile phones, portable game consoles and etc.
HSON8
2.90mm x 3.00mm x 0.60mm
Typical Application Circuit
Power Supply
IN
CIN 0.1µF
EN
L1
L2
L3
L4
BD1754HFN
GND
ISET
RISET 120kΩ
(When ILED-max =32mA)
○Product structure：Silicon monolithic integrated circuit
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111ï½¥14ï½¥001
○This product has no designed protection against radioactive rays
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TSZ02201-0G3G0C200060-1-2
10.Dec.2015 Rev.002