IR2159 查看數據表（PDF） - International Rectifier

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IR2159

DIMMING BALLAST CONTROL IC

International Rectifier 

IR2159/IR21591 (S)

State Diagram

Power Turned On

SD > 2.0V

(Lamp Removal)

or

VCC < 10.9V

(Power Turned Off)

FAULT Mode

Fault Latch Set

1/2-Bridge Off

IQCC ≅ 240µA

CPH = 0V

VCC = 15.6V

Oscillator Off

TJ > 175C

(Over-

Temperature)

CS > VCSTH (1.6V)

(Failure to Strike Lamp

or Hard Switching)

or

TJ > 175C

(Over-Temperature)

UVLO Mode

1/2-Bridge Off

IQCC ≅ 200µA

CPH = 0V

Oscillator Off

VCC > 12.5V (UV+)

and

VDC > 5.1V (Bus OK)

and

SD < 1.7V (Lamp OK)

and

TJ < 175C (Tjmax )

PREHEAT Mode

1/2-Bridge Oscillator On

VCSPK=VIPH (Peak Current Control)

CPH Charging @ IPH = 1µA

DIM = Open Circuit

Over-Current Disabled

CPH > 5.1V

(End of PREHEAT Mode)

IGNITION Mode

fPH ramps to f MIN

CPH Charging @ IPH = 1µA

DIM = Open Circuit

Over-Current Enabled

CS > VCSTH (1.6V)

(Over-Current or Hard Switching)

or

TJ > 175C

(Over-Temperature)

VCO < VDIMTH

(End of IGNITION Mode)

DIM Mode

Phase CS = PhaseREF

DIM = CPH

Over-Current Enabled

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)

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