Document
NSI45020JZ, NSV45020JZ
Adjustable Constant Current
Regulator & LED Driver
45 V, 20 − 40 mA + 15%, 1.5 W Package
The adjustable constant current regulator (CCR) is a simple, economical and robust device designed to provide a cost effective solution for regulating current in LEDs (similar to Constant Current Diode, CCD). The CCR is based on Self-Biased 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. The Radj pin allows Ireg(SS) to be adjusted to higher currents by attaching a resistor between Radj (Pin 3) and the Cathode (Pin 4). The Radj pin can also be left open (No Connect) if no adjustment is required. It requires no external components allowing it to be designed as a high or low−side regulator. The high anodecathode voltage rating withstands surges common in Automotive, Industrial and Commercial Signage applications. This device is available in a thermally robust package and is qualified to stringent AEC−Q101 standard, which is lead-free RoHS compliant and uses halogen-free molding compound, and UL94−V0 certified.
Features
• Robust Power Package: 1.5 Watts • Adjustable up to 40 mA • Wide Operating Voltage Range • Immediate Turn-On • Voltage Surge Suppressing − Protecting LEDs • AEC−Q101 Qualified and PPAP Capable, UL94−V0 Certified • SBT (Self−Biased Transistor) Technology • Negative Temperature Coefficient • Eliminates Additional Regulation • NSV Prefix for Automotive and Other Applications Requiring
Unique Site and Control Change Requirements; AEC−Q101 Qualified and PPAP Capable
• These Devices are Pb−Free, Halogen Free/BFR Free and are RoHS
Compliant
Applications
• Automobile: Chevron Side Mirror Markers, Cluster, Display &
Instrument Backlighting, CHMSL, Map Light
• AC Lighting Panels, Display Signage, Decorative Lighting, Channel
Lettering
• Switch Contact Wetting • Application Note AND8349/D − Automotive CHMSL • Application Note AND8391/D − Power Dissipation Considerations
© Semiconductor Components Industries, LLC, 2013
July, 2013 − Rev. 2
1
http://onsemi.com
Ireg(SS) = 20 − 40 mA @ Vak = 7.5 V
Anode 1
2/4 Cathode
3 Radj
SOT−223 CASE 318E
STYLE 2
MARKING DIAGRAM
C
AYW AAJG
G
1 A C Radj
A = Assembly Location Y = Year W = Work Week AAJ = Specific Device Code G = Pb−Free Package (Note: Microdot may be in either location)
ORDERING INFORMATION
Device
Package
Shipping†
NSI45020JZT1G SOT−223 1000/Tape & Reel (Pb−Free)
NSV45020JZT1G SOT−223 1000/Tape & Reel (Pb−Free)
†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.
Publication Order Number: NSI45020JZ/D
NSI45020JZ, NSV45020JZ
MAXIMUM RATINGS (TA = 25°C unless otherwise noted) Rating
Symbol
Value
Unit
Anode−Cathode Voltage
Vak Max
45
V
Reverse Voltage
Operating and Storage Junction Temperature Range
ESD Rating:
Human Body Model Machine Model
VR TJ, Tstg
ESD
500 −55 to +150
Class 2 Class C
mV °C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability. ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Typ
Max Unit
Steady State Current @ Vak = 7.5 V (Note 1) Voltage Overhead (Note 2) Pulse Current @ Vak = 7.5 V (Note 3) Capacitance @ Vak = 7.5 V (Note 4)
Ireg(SS) Voverhead
Ireg(P) C
17 17.15
20 1.8
7.4
23 mA V
23.4 mA pF
Capacitance @ Vak = 0 V (Note 4)
C 31 pF
1. Ireg(SS) steady state is the voltage (Vak) applied for a time duration ≥ 35 sec, using FR−4 @ 300 mm2 2 oz. Copper traces, in still air. 2. Voverhead = Vin − VLEDs. Voverhead is typical value for 80% Ireg(SS). 3. Ireg(P) non−repetitive pulse test. Pulse width t ≤ 1.0 msec. 4. f = 1 MHz, 0.02 V RMS.
THERMAL CHARACTERISTICS
Characteristic
Symbol
Max
Unit
Total Device Dissipation Derate above 25°C
(Note
5)
TA
=
25°C
PD
1008 8.06
mW mW/°C
Thermal Resistance, Junction−to−Ambient (Note 5) Thermal Reference, Junction−to−Lead 4 (Note 5)
Total Device Dissipation (Note 6) TA = 25°C Derate above 25°C
RθJA
RψJL4 PD
124 33.3
1136 9.09
°C/W °C/W
mW mW/°C
Thermal Resistance, Junction−to−Ambient (Note 6) Thermal Reference, Junction−to−Lead 4 (Note 6)
Total Device Dissipation (Note 7) TA = 25°C Derate above 25°C
RθJA
RψJL4 PD
110 33.3
1238 9.9
°C/W °C/W
mW mW/°C
Thermal Resistance, Junction−to−Ambient (Note 7) Thermal Reference, Junction−to−Lead 4 (Note 7)
Total Device Dissipation (Note 8) TA = 25°C Derate above 25°C
RθJA
RψJL4 PD
101 33.7
1420 11.36
°C/W °C/W
mW mW/°C
Thermal Resistance, Junction−to−Ambient (Note 8) Thermal Reference, J.