Data Sheet

ZSLS7031
Isolated and Non-isolated Flyback LED Driver with Active PFC
Brief Description
Features
The ZSLS7031 is a primary-side controlled, peakcurrent-mode high-brightness LED flyback driver
that supports both isolated and non-isolated
designs with active power factor correction (PFC).

The device works at a constant frequency in
discontinuous conduction mode to provide constant power to the output. It eliminates the need for
an opto-coupler, TL431 shunt regulator, or any
other type of secondary-side feedback device. It
operates from a wide input voltage range of
85VAC to 265VAC.

The ZSLS7031 integrates over-current and overvoltage protection, as well as a thermal shutdown
to halt the switching action in the event of abnormally high operating temperatures.




Available Support



High efficiency
Minimum bill of materials
Small form-factor package
No loop compensation required
Isolated and non-isolated applications




Evaluation Kit
Physical Characteristics
Benefits

Power factor PF > 0.95 depending on
application
Wide application input voltage range: 85V to
265VAC
Internal over-temperature protection
Output over-voltage protection (OVP)
Output over-current protection (OCP) on
primary side
Operating temperature:-45°C to 105°C
Maximum junction temperature: 150°C
Package: MSOP-8, RoHS-compliant
ZSLS7031 Typical Isolated Application
D4
LED+
+
TR
R5
C3
C6
85VAC to 265VAC
R8
LED1 to LEDn
Fuse
LED-
-
L
DB1 to DB4
R1
C1
R3
D1
D2
N
D3
IC1
1
2
3
R2
4
C2
Rset
ZSLS7031
VSINE
n.c.
FSET
GND
VCC
GATE
CS
FB
8
Q1
7
R6
6
5
C5
C4
R9
Rcs
R7
For more information, contact ZMDI via [email protected]
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00 — May 7, 2013 All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated,
stored, or used without the prior written consent of the copyright owner. The information furnished in this publication is subject to changes without notice.
ZSLS7031
Isolated and Non-isolated Flyback LED Driver with Active PFC
Circuit Block Diagram
Typical Applications

LED bulb lamps


LED tube lamps
General LED lighting
Ordering Information
Ordering Code
Description
Package
ZSLS7031ZI1R
ZSLS7031 Flyback LED Driver IC, MSOP-8
Tape on Reel
ZSLS7031KIT-D1
ZSLS7031PCB-D1 Evaluation Board, 5 ZSLS7031 ICs
Kit
Sales and Further Information
www.zmdi.com
[email protected]
Zentrum Mikroelektronik
Dresden AG
Global Headquarters
Grenzstrasse 28
01109 Dresden, Germany
ZMD America, Inc.
1525 McCarthy Blvd., #212
Milpitas, CA 95035-7453
USA
Central Office:
Phone +49.351.8822.0
Fax
+49.351.8822.600
USA Phone +855.275.9634
Phone +408.883.6310
Fax
+408.883.6358
European Technical Support
Phone +49.351.8822.7.772
Fax
+49.351.8822.87.772
DISCLAIMER: This information applies to a product under development. Its characteristics and specifications are subject to change without notice.
Zentrum Mikroelektronik Dresden AG (ZMD AG) assumes no obligation regarding future manufacture unless otherwise agreed to in writing. The
information furnished hereby is believed to be true and accurate. However, under no circumstances shall ZMD AG be liable to any customer,
licensee, or any other third party for any special, indirect, incidental, or consequential damages of any kind or nature whatsoever arising out of or
in any way related to the furnishing, performance, or use of this technical data. ZMD AG hereby expressly disclaims any liability of ZMD AG to any
customer, licensee or any other third party, and any such customer, licensee and any other third party hereby waives any liability of ZMD AG for
any damages in connection with or arising out of the furnishing, performance or use of this technical data, whether based on contract, warranty,
tort (including negligence), strict liability, or otherwise.
European Sales (Stuttgart)
Phone +49.711.674517.55
Fax
+49.711.674517.87955
Zentrum Mikroelektronik
Dresden AG, Japan Office
2nd Floor, Shinbashi Tokyu Bldg.
4-21-3, Shinbashi, Minato-ku
Tokyo, 105-0004
Japan
ZMD FAR EAST, Ltd.
3F, No. 51, Sec. 2,
Keelung Road
11052 Taipei
Taiwan
Phone +81.3.6895.7410
Fax
+81.3.6895.7301
Phone +886.2.2377.8189
Fax
+886.2.2377.8199
Zentrum Mikroelektronik
Dresden AG, Korea Office
U-space 1 Building
11th Floor, Unit JA-1102
670 Sampyeong-dong
Bundang-gu, Seongnam-si
Gyeonggi-do, 463-400
Korea
Phone +82.31.950.7679
Fax
+82.504.841.3026
© 2013 Zentrum Mikroelektronik Dresden AG — Rev. 1.00 — May 7, 2013
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner.