IS31LT3935-DSL2-TR ISSI, IS31LT3935-DSL2-TR Datasheet

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IS31LT3935-DSL2-TR

Manufacturer Part Number
IS31LT3935-DSL2-TR
Description
LED Lighting Drivers HV LED driver Triac dimming
Manufacturer
ISSI
Datasheet

Specifications of IS31LT3935-DSL2-TR

Rohs
yes
Input Voltage
110 V to 220 V
Maximum Supply Current
500 uA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
DFN-10
Minimum Operating Temperature
- 40 C
Flicker-Free
TRIAC Dimmable AC/DC LED Driver with Active PFC
GENERAL DESCRIPTION
The Flicker-Free™ IS31LT3935 is a single stage
current-mode LED driver optimized for high power
factor and compatibility with all TRIAC dimmers. The
PFC architecture enables excellent power factor over a
wide range of operating line and load conditions, even
with the simplest of inductor-based driver topologies,
thereby reducing system cost and size while
maximizing efficiency.
The IS31LT3935 LED controller features patent
pending AccuDim™ flicker-free dimming technology
that mimics the characteristics of an incandescent light
bulb. It presents a dynamic impedance to the dimmer
and integrates an active bleed circuit for true dimming
performance across all dimmers.
The device is available in a tiny 10 lead DFN-EP (3mm
× 3mm) package. It operates over the temperature
range of -40°C to +85°C.
TYPICAL APPLICATIONS
TYPICAL APPLICATION CIRCUIT
Copyright © 2013 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any
time without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are
advised to obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. does not recommend the use of any of its products in life support applications where the failure or malfunction of the
product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not
authorized for use in such applications unless Integrated Silicon Solution, Inc. receives written assurance to its satisfaction, that:
a.) the risk of injury or damage has been minimized;
b.) the user assume all such risks; and
c.) potential liability of Integrated Silicon Solution, Inc is adequately protected under the circumstances
Integrated Silicon Solution, Inc. – www.issi.com - 1-800-379-4774
Rev. B, 03/07/2013
Dimmable Retrofit LED Lamps and Luminaries up
to 30W
Industrial and Commercial Lighting
Offline LED Driver Modules and Bricks
TM
IS31LT3935
Figure 1 Typical Application Schematic
FEATURES
DIMMING PERFORMANCE
Smooth 0-100% Flicker-free Dimming Range
Compatibility with all TRIAC Dimmers (Digital,
Leading and Trailing-edge)
Near­unity PFC without External PFC Circuitry
Spread­Spectrum Switching for Reduced EMI
Low 500µA Quiescent Current
Protections:
Power Factor = 0.99 at 13W output
Power Factor = 0.91 at 1W output
Efficiency: 87% from 120Vrms to 39Vdc at full
power
Efficiency: 85% from 120Vrms to 23Vdc at full
power
Efficiency: >82% down to 2W output
0~100% Light Output and anything in between
No flicker over Full Dimming Range
Soft Start
Under­-voltage, (Over-voltage) Lockout
Thermal Shutdown)
March 2013
1

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