?Semiconductor Components Industries, LLC, 2012
May, 2012 Rev. 3
1
Publication Order Number:
NSI50350AS/D
NSI50350AST3G
Constant Current Regulator
& LED Driver
50 V, 350 mA + 10%, 5.8 W Package
The linear constant current regulator (CCR) is a simple, economical
and robust device designed to provide a costeffective solution for
regulating current in LEDs. The CCR is based on SelfBiased
Transistor (SBT) technology and regulates current over a wide voltage
range. It is designed with a negative temperature coefficient to protect
LEDs from thermal runaway at extreme voltages and currents.
The CCR turns on immediately and is at 20% of regulation with
only 0.5 V Vak. It requires no external components allowing it to be
designed as a high or lowside regulator. The high anodecathode
voltage rating withstands surges common in Automotive, Industrial
and Commercial Signage applications. The CCR comes in thermally
robust packages and is qualified to AECQ101 standard and
UL94V0 Certified.
Also available in DPAK: NSI50350ADT4G.
Features
" Robust Power Package: 5.8 W
" Wide Operating Voltage Range
" Immediate TurnOn
" Voltage Surge Suppressing Protecting LEDs
" AECQ101 Qualified and PPAP Capable, UL94V0 Certified
" SBT (SelfBiased Transistor) Technology
" Negative Temperature Coefficient
" These Devices are PbFree, Halogen Free/BFR Free and are RoHS
Compliant
Typical Applications
" Automobile: Chevron Side Mirror Markers, Cluster, Display &
Instrument Backlighting, CHMSL, Map Light
" AC Lighting Panels, Display Signage, Decorative Lighting, Channel
Lettering
" Application Note AND8349/D Automotive CHMSL
" Application Notes AND8391/D, AND9008/D Power Dissipation
Considerations
Mechanical Characteristics
" CASE: Void-free, transfer-molded, thermosetting plastic
" FINISH: All external surfaces are corrosion resistant and leads are
readily solderable
" MAXIMUM CASE TEMPERATURE FOR SOLDERING PURPOSES:
260癈 for 10 seconds
" LEADS: Modified LBend providing more contact area to bond pads
" POLARITY: Cathode indicated by molded polarity notch
" MOUNTING POSITIONS: Any
http://onsemi.com
SMC
CASE 403
MARKING DIAGRAM
Device
Package
Shipping
ORDERING INFORMATION
NSI50350AST3G
SMC
(PbFree)
2500 / Tape & Reel
For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
(Note: Microdot may be in either location)
Anode 2
Cathode 1
I
reg(SS)
= 350 mA
@ Vak = 7.5 V
AYWW
350AG
G
350A = Specific Device Code
A
= Assembly Location
Y
= Year
WW
= Work Week
G
= PbFree Package
1
2
2
1
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