IR2156PBF_15 Datasheet, PDF (1/21 Pages) International Rectifier – BALLAST CONTROL IC

Features
Ballast control and half bridge driver in one IC
Programmable preheat frequency
Programmable preheat time
Internal ignition ramp
Programmable over-current threshold
Programmable run frequency
IR2156(S)PbF
BALLAST CONTROL IC
Programmable dead time
DC bus under-voltage reset
Shutdown pin with hysteresis
Internal 15.6V zener clamp diode on Vcc
Micropower startup (150 µA)
Latch immunity and ESD protection
Description
The IR2156 incorporates a high voltage half-
bridge gate driver with a programmable oscillator and
state diagram to form a complete ballast control IC.
The IR2156 features include programmable preheat
and run frequencies, programmable preheat time,
programmable dead-time, and programmable over-
current protection. Comprehensive protection
features such as protection from failure of a lamp to
strike, filament failures, as well as an automatic
restart function, have been included in the design.
Packages
IR2156SPBF
SOICN14
Application Diagram
IR2156PBF
PDIP14
1