EL SEGUNDO, Calif. — International Rectifier, IR®(NYSE: IRF), a world leader in power management technology, today introduced the IRS2153D, an electronic ballast IC for fluorescent lamps. The new 600V self-oscillating half-bridge IC includes an internal bootstrap diode to simplify circuits.

The new ballast IC is designed to increase efficiency and performance over older, less efficient self-oscillating bipolar transistor-based solutions. The IRS2153D has an oscillator frequency precision of 3%, which helps to optimize external component selection for uniform lamp brightness during manufacturing. A preheat feature, which sets the correct preheat frequency for the correct duration, helping to maximize lamp life, can be realized externally easily.

The IC is lead-free (PbF), and includes a 2V under-voltage lockout hysteresis for more robust ballast circuits and prevents unwanted shutdown if momentary transients occur. In addition, the new IRS2153D includes an under-voltage lockout circuit that ensures that the high-side floating voltage (VBS) correctly switches the high-side gate driver output (HO), protecting the external MOSFET.

The new IRS2153D is based on the very popular IR2153x product family that integrates a “555” type oscillator circuit with a 600V half-bridge gate driver to drive two output FETs or IGBTs.

The IRS2153D is made with IR’s proprietary high voltage integrated circuit (HVIC) technology, which is ideal for designing products to drive MOSFETs and IGBTs. Gate drive outputs are designed using a latch-immune CMOS circuit. The technology integrates a low-voltage driver with a high-voltage level shifter for high-side and low-side gate drivers in one monolithic IC.

“International Rectifier’s HVIC technology is a perfect fit for the electronic ballast industry. IR’s lighting products continue to simplify circuits and improve performance, while saving energy,” said David Tam, International Rectifier Vice President of the Consumer and Industrial business sector.

Specifications	Existing Part Number IR2153	New Part Number IRS2153D
Integrated high voltage half-bridge gate driver	600V	600V
Duty cycle	50%	50%
tRISE/tFALL	80/45ns	120/50ns
Internal bootstrap FET	No	Yes
Zener clamp on VCC	15.6V	15.4V
VCC undervoltage lockout hysterisis	1V	2V
CT, RT programmable oscillator	up to 100kHz+	up to 100kHz+
Frequency tolerance (at 25%C)	3%	3%
Typical micropower startup current	75 µA	130 µA
dV/dt immunity	+/- 50ns	+/- 50ns
Shutdown	Yes	Yes
Package	8-pin DIP 8-pin SOIC	8-pin DIP 8-pin SOIC
UVLO protection for the high-side floating voltage (VBS)	No	Yes
Datasheet	IR2153	IRS2153D IRS2153DS

Availability and Pricing

Pricing for the IRS2153DPbF, IRS2153DSPbF and IRS2153DSTRPbF is US $0.80 each in 10,000-unit quantities, and are available either in tubes or Tape & Reel. Prices are subject to change. The devices are lead-free and are compliant with the Restriction of Hazardous Substances Directive (RoHS).