ELM916DA
450V LED controller
■General
description
ELM916DA is high efficiency LED driver control IC, which uses fewer components and drives LED with
constant current. ELM916DA works in open loop and current mode, and can be programmed to operate in either
constant frequency or constant off-time mode. ELM916DA consists of an 8 to 450V linear regulator, which
makes working in wide input voltage range without external low voltage power supply
.
Internal 0 to 100%
PWM dimming and 0 to 245mV linear dimming help to adjust LED luminance. ELM916DA is suitable for buck
LED drivers; it is capable of providing good stability response because of open loop current mode control and
with the controller, it is able to regulate output current without any compensation outstandingly.
■Features
Open loop peak current controller
Constant Current LED Driver
LED string from one to hundreds of diodes
Support linear and PWM dimming interface
Requires few external components
Buck system efficiency
: >90%
Internal linear regulator
: 8 to 450V
Constant off time function
: 50%
(when duty cycle is over)
• Package
: SOP-8
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■Application
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DC/DC LED driver applications
RGB backlighting LED driver
General purpose constant current source
Signage and decorative LED lighting
Chargers
Non-isolation LED bulb
■Maximum absolute ratings
Parameter
VIN voltage power supply
VDD voltage
LD voltage
PWMD voltage
GATE voltage
CS voltage
RT voltage
Power dissipation
Operating ambient temperature
Storage temperature
Symbol
Vin
Vdd
Vld
Vpwmd
Vgate
Vcs
Vrt
Pd
Top
Tstg
Limit
500
36
7
630
-40 to +85
-55 to +150
Unit
V
V
V
mW
°C
°C
Caution: Permanent damage to the device may occur when ratings above maximum absolute ones are used.
■Selection guide
Symbol
a
b
c
ELM916DA-N
Package
Product version
Taping direction
D: SOP-8
A
N: Refer to PKG file
ELM916 D A - N
↑ ↑ ↑
a b c
* Taping direction is one way.
6- 1
Rev.1.3