ELM916DB Datasheet, PDF (1/6 Pages) ELM Technology Corporation – 600V LED controller

ELM916DB 600V LED controller
■General description
http://www.elm-tech.com
ELM916DB is a high efficient LED driver control IC, which uses fewer components and drives LEDs with
constant current. ELM916DB works in constant frequency and the frequency can be programmed by an external
resistor. ELM916DB includes a high voltage regulator which makes it work in wide 10 to 600V input voltage
range without an external low voltage power supply. External 0 to 100% PWM dimming and 0 to 250mV linear
dimming help to adjust LEDs luminance. ELM916DB is suitable for buck, boost or buck-boost LED drivers.
It has a good stable response that is provided by open loop current mode control without any compensation
circuits.
■Features
• Open loop peak current control
• A constant current LED driver
• For a LED string from one to hundreds of diodes
• Linear and PWM dimming interface
• Require a few external components
• A buck system with high efficiency : >90%
• Wide operating voltage range
: 10V to 600V
• Package
: SOP-8
■Application
• 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
Symbol
Limit
Unit
VIN voltage power supply
Vin
600
V
VDD voltage
Vdd
+10
V
LD voltage
Vld
PWMD voltage
Vpwmd
GATE voltage
Vgate
-0.3 to Vdd+0.3
V
CS voltage
Vcs
RT voltage
Vrt
Power dissipation
Pd
630
mW
Operating ambient temperature
Top
-40 to +85
°C
Storage temperature
Tstg
-55 to +150
°C
Caution: Permanent damage to the device may occur when ratings above maximum absolute ones are used.
Rev.1.0
6- 1