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New Application Note on ZLSL7031 LED Driver IC

 

ZMDI has released a new application note on the ZLSL7031 LED Driver IC titled "230VAC Buck-Boost Converter for 45 LEDs".

zsls7035 thumbnailThe ZSLS7031 is a high-brightness LED driver that supports both isolated and non-isolated LED lighting designs with active power factor correction (PFC). Designed for isolated flyback and non-isolated buck-boost applications, the ZSLS7031 has applications in PFC buck operation in special conditions.

The purpose of a buck-boost converter is to provide a constant output even if the input supply changes from lower to higher than the required output voltage. Like a flyback converter, the buck-boost converter can be active during the entire rectified sinusoid, allowing continuous PFC correction and low total harmonic distortion. The buck-boost topology provides better efficiency when the LED forward voltage is relatively high and the current is reasonably low as in the example given in this application note for a string of 45 LEDs in series at a current of 350 mA.

Key benefits of the ZSLS7031 include:

  • High efficiency of 90%
  • No optocoupler or secondary-side feedback device required
  • Safety features including thermal shutdown and over-current and over-voltage protection

The ZSLS7031 integrates over-current and over-voltage protection, as well as a thermal shutdown to halt the switching action in the event of abnormally high operation temperatures.

Download the complete application note here

If you have an LED driver IC application, the best use of your time is to utilize our LED help questionnaire located here. Simply fill out your requirements, and you will be contacted with specific part number suggestions for your application. 

LED Driver IC Product Overview

 

zled drivers group

Recently we received an updated product family overview for the ZMDI LED driver IC line. We find this chart to be extremely useful for understanding the various part numbers and capabilities. We hope you do too!

Embedded within the chart are links to the individual LED driver IC product pages. With efficiencies at 95-98% depending on the model, ZMDI LED driver IC's make a dramatic impact in creating energy efficient LED lighting solutions. 

LED Driver Product Family

Part

Type

Dimming

Iout

Effic.

Acc.

Pkg

 

ZLED7000

40V DC/DC Buck

DC/PWM

750 mA

<95%

<95%

SOT89-5

 

ZLED7010

40V DC/DC Buck

DC/PWM

750 mA

<95%

<5%

SOP8

Temp Comp

ZLED7020

ZLED7320

ZLED7520

ZLED7720 

40V DC/DC Buck

DC/PWM

1200 mA

1000 mA

750 mA

350 mA 

<98%

<3%

SOT89-5

DFN-5

DFN-5

DFN-5 

 

ZLED7030

ZLED7330

ZLED7530

ZLED7730 

40V DC/DC Buck 

Switch 

1200 mA

1000 mA

750 mA

350 mA  

<98% 

 <3%

 SOP8

 

ZLED7001

 8-450V Univ

DC Linear PWM

>2000
mA 

 ~96%

 NA

 SOP8

Temp Comp

ZLED7002

 Low Voltage Toggle

 NA

 250 mA

   

 SOP8

 

ZSLS7015

 35V DC/DC Boost

DC Linear PWM 

 ~800 mA

<95% 

 <5%

 MSOP10

 

ZSLS7025

 5-100V DC/DC Boost

 DC Linear PWM

 >2000
mA

 <95%

 <5%

 SOP8

 

ZSLS7031 

 Active PFC Flyback

 DC Linear PWM

 >2000
mA

 <85%

 

 MSOP8

 

Typical applications for LED driver IC's include:

  • Retrofit lighting
  • Street lighting
  • Traffic lighting
  • Architectural lighting
  • Industrial lighting and much more!

All ZMDI LED driver IC's have small footprints and high levels of integration, thus minimizing the need for additional parts to run these IC's.

If you are interested in estimated pricing of these LED drivers, take a look at our LED driver Product & Pricing Guide. This 5 minute overview provides estimated costs of various ZMDI LED drivers.

New LED Drivers added to ZLED7X20 & ZLED7X30 Families

 

7x20 familyServoflo is pleased to announce the addition of new LED drivers to the ZLED7x20 & ZLED7X30 families. Both groups are high current 40V LED drivers. The ZLED7X20 has an internal switch while the ZLED7X30 has a switch dimming function.

Both families require a low bill of materials and have a small footprint. Thermal shutdown protection and LED open circuit protection is included. Typical applications include:

  • Interior/exterior LED lighting
  • General purpose consumer LED applications
  • MR16 LED spot lights
  • Architectural lighting
  • Retrofit LED lighting fixtures

This chart summarizes all LED Drivers available. It is a simple way to quickly evaluating the key features of different models. Evaluation kits are available for purchase.

LED family

To see all LED Drivers, visit our LED driver section of our web site.

You can also download our LED driver product & pricing guide!

led-product-guide-cta

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