Power Electronics / Power Management


Fluorescent lighting ballast control ICs

4 March 2009 Power Electronics / Power Management

New from International Rectifier are the IRS2530D and IRS2158D 600 V control ICs for energy-efficient dimming fluorescent lighting ballast applications.

The IRS2530D DIM8 is a linear dimming ballast control IC with a half-bridge driver in a compact 8-pin form factor. The new device provides a competitive solution to replace in­efficient incandescent bulbs in multilevel and three-way compact fluorescent lighting (CFL) applications. Requiring only several small external components, the IC simplifies and shrinks circuit design and delivers a dimming system performance of up to 10% for CFLs as well as linear ballasts.

The IRS2530D DIM8 features IR’s patented ballast and high-voltage technologies. A single high-voltage pin senses the half-bridge current and voltage to perform necessary ballast protection functions. The DC dim input voltage reference and AC lamp current feedback are combined, allowing a single pin to be used for dimming. The device also features an internal non-ZVS protection and internal crest factor protection to prevent lamp failure from damaging the ballast.

The IRS2158D 16-pin fluorescent dimming ballast control IC with half-bridge driver is designed for applications requiring dimming performance below 10%. Protection features such as protection from failure of a lamp to strike, filament failures and end-of-life protection are offered, making the device well suited for thin lamps including the increasingly popular T5 lamp.

The IRS2158D is a fully integrated, fully protected 600 V ballast control IC designed to drive a wide variety of fluorescent lamps. The device’s features include programmable half-bridge over-current protection, programmable pre-heat and run frequencies, programmable preheat time and dead-time, closed-loop half-bridge ignition current regulation, programmable end-of-life protection, brownout protection and low input offset operational amplifier for dimming, current or power control. In addition, it features an end-of-life window comparator pin and internal 60-event current sense up/down fault counter to accommodate T5 lamp and multilamp ballasts.

For more information contact Marian Ledgerwood, Future Electronics, +27 (0)21 421 8292, [email protected], www.futureelectronics.com



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

3-terminal filters for automotive applications
RS South Africa Power Electronics / Power Management
TDK has expanded its YFF series of 3-terminal filters for automotive applications to include higher voltages up to 35 V and higher capacitances up to 4,7 µF.

Read more...
Simple battery charger ICs for any chemistry
Altron Arrow Editor's Choice Power Electronics / Power Management
The LTC4162 is a highly integrated, high voltage multi-chemistry synchronous monolithic step-down battery charger and PowerPath manager with onboard telemetry functions and optional maximum power point tracking.

Read more...
Why your PoE budget could make or break your next installation
Power Electronics / Power Management
In South Africa’s often unpredictable networking environments, understanding and planning your PoE budget is essential for system reliability, customer satisfaction, and long-term scalability.

Read more...
Five-minute EV charging a reality
Power Electronics / Power Management
Successfully demonstrated in Beijing recently at the Shanghai auto show, BYD claimed to add 400 km of range in just five minutes of charging.

Read more...
The evolution of power management in electronics
TRX Electronics Power Electronics / Power Management
The Mibbo MPS Series metal-encased power supplies deliver solid, efficient power in a durable package that’s built to last.

Read more...
Power and precision in a compact package
Conical Technologies Power Electronics / Power Management
The Mibbo MPS Series metal-encased power supplies deliver solid, efficient power in a durable package that’s built to last.

Read more...
Robust PoE module
CST Electronics Power Electronics / Power Management
The Ag59800-LPB high power, IEEE 802.3bt compliant, PD module from Silvertel offers typical efficiency of 95% making it an ideal choice for higher power, space-constrained applications.

Read more...
Cutting-edge solutions for Africa’s clean energy future
Power Electronics / Power Management
As Africa pushes towards reliable, affordable, and sustainable energy, Sungrow is driving transformation with cutting-edge innovations that enhance grid stability, reduce energy costs, and expand access to clean power.

Read more...
Transformer protection is a critical safeguard for municipal power stability
Power Electronics / Power Management
Transformer protection is not just a technical requirement; it is a vital component in ensuring the resilience and operational integrity of South Africa’s municipal power infrastructure.

Read more...
PhotoMOS relays
Future Electronics Opto-Electronics
The AQY221R2SX and AQY221R2S PhotoMOS from Panasonic Industry ensures excellent characteristics and high-speed switching performance.

Read more...









While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd | All Rights Reserved