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IR2159 Datasheet(PDF) 7 Page - International Rectifier

Part No. IR2159
Description  DIMMING BALLAST CONTROL IC
Download  25 Pages
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Maker  IRF [International Rectifier]
Homepage  http://www.irf.com
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IR2159 Datasheet(HTML) 7 Page - International Rectifier

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IR2159/IR21591 (S)
www.irf.com
7
UVLO Mode
1/
2-Bridge Off
I
QCC ≅ 200µA
CPH = 0V
Oscillator Off
PREHEAT Mode
1/
2-Bridge Oscillator On
V
CSPK=VIPH (Peak Current Control)
CPH Charging @ I
PH = 1µA
DIM = Open Circuit
Over-Current Disabled
IGNITION Mode
f
PH ramps to f MIN
CPH Charging @ I
PH = 1µA
DIM = Open Circuit
Over-Current Enabled
DIM Mode
Phase
CS = Phase REF
DIM = CPH
Over-Current Enabled
VCC > 12.5V (UV+)
and
VDC > 5.1V (Bus OK)
and
SD < 1.7V (Lamp OK)
and
T
J < 175C (Tjmax )
CPH > 5.1V
(End of PREHEAT Mode)
VCO < V
DIMTH
(End of IGNITION Mode)
VCC < 10.9V
(VCC Fault or
Power Down)
or
VDC < 3.0V
(dc Bus/ac Line Fault
or Power Down)
or
SD > 2.0V
(Lamp Fault or
Lamp Removal)
Power Turned On
FAULT Mode
Fault Latch Set
1/
2-Bridge Off
I
QCC ≅ 240µA
CPH = 0V
VCC = 15.6V
Oscillator Off
T
J > 175C
(Over-
Temperature)
CS > V
CSTH (1.6V)
(Failure to Strike Lamp
or Hard Switching)
or
T
J > 175C
(Over-Temperature)
CS > V
CSTH (1.6V)
(Over-Current or Hard Switching)
or
T
J > 175C
(Over-Temperature)
SD > 2.0V
(Lamp Removal)
or
VCC < 10.9V
(Power Turned Off)
State Diagram


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