ILA3354_11 Datasheet, PDF (1/6 Pages) IK Semicon Co., Ltd – IC for Electronic Ballasts

TECHNICAL DATA
IC for Electronic Ballasts
ILA3354
Short Description
The bipolar monolithic integrated circuit triggers,
monitors and turns-off RF-oscillation of electronic
ballast for fluorescent lamps dependent on several
control- and monitoring functions.
Features
• Minimum wiring complexity
• Over temperature protection without external
components
• Malfunction detection
• Timer output
• Automatical reignition after lamp change
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
TM
CT
TR
GND
EI
LW
S
VCC
Pinning
temperature mode selection
clock generator
trigger output, turn-off attenuation, oscillation detector
connection to ground
error indication input
input of lamp change
switching output of the timer
supply voltage
Block diagram
Characteristics of the IC
• The ILA3354 is a control- and monitoring-IC to drive an electronic ballast for fluorescent lamps.
• The IC actuates the oscillation of a self-oscillating circuit for generation of RF-shaped lamp current by
means of trigger pulses. After successful excitation the oscillation is monitored and further trigger pulses are
blocked.
• The IC has a timer with low-active output which is activated for one second after supply voltage was
applied.
The switching output is effective for pre-heating and ignition systems.
• The IC consists an error indication input. In case of error indication the IC stops oscillation. Enquiry cycles
realize interference reduction.
• After lamp change the IC starts oscillation again.
• The IC protects from over temperature cutting oscillation. It is programmable when the oscillator circuit
shall be triggered again.
2011, February, Rev. 01