IRS21571DSPBF International Rectifier, IRS21571DSPBF Datasheet - Page 13

• Manufacturer Part Number: IRS21571DSPBF
• Description: IC BALLAST CTRL 600V 16-SOIC
• Manufacturer: International Rectifier
• Type: Ballast Controllerr

Specifications of IRS21571DSPBF

• Frequency: 43.7 ~ 48.3 kHz
• Current - Supply: 10mA
• Current - Output: 180mA
• Voltage - Supply: 11.5 V ~ 15.6 V
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Package: 16-lead SOIC Narrow
• Circuit: Fluorescent Ballast IC
• Offset Voltage (v): 600
• Output Source Current Min (ma): 180
• Output Sink Current Min (ma): 260
• Pbf: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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State Diagram
FAULT Mode
Fault Latch Set
VCC = 15.6V
1
I
Oscillator Off
/
QCC
2
CPH = 0V
-Bridge Off
CS > CS+ Threshold
(Over-Current or Hard Switching)
CS < 0.2V
(No-Load or Below Resonance)
T
(Over-Temperature)
J
≅ 150μA
> 140C
SD > 2.2V
(Lamp Removal)
VCC < 10.5V
(Power Turned Off)
or
or
or
CS > CS+ Threshold
(Failure to Strike Lamp
or Hard Switching)
T
(Over-Temperature)
J
> 140C
or
T
(Over-Temperature)
J
> 140C
IGNITION RAMP Mode
Power Turned On
CPH Charging @ I
PREHEAT Mode
CPH Charges to 10V Clamp
CPH Charging @ I
CS+ Threshold Enabled
CS- Threshold Enabled
RUN = Open Circuit
UVLO Mode
RPH = Open Circuit
RUN = Open Circuit
RPH = Open Circuit
1
f
RUN Mode
/
MIN
f
1
I
Oscillator Off
2
CS Disabled
PH
/
QCC
-Bridge @ f
2
CPH = 0V
RPH = 0V
-Bridge Off
Ramps to f
RUN = 0V
ramps to f
≅ 150μA
VCC > 12.5V (UV+)
VDC > 5.2V (Bus OK)
SD < 1.7V (Lamp OK)
T
CPH > 4.0V
(End of PREHEAT Mode)
CPH > 5V
(End of IGNITION RAMP)
13
J
< 140C (T
PH
PH
and
and
and
PH
MIN
RUN
= 1μA
= 1μA
jmax
)
VCC < 10.5V
(VCC Fault or Power Down)
VDC < 3.0V
(dc Bus/ac Line Fault or Power Down)
SD > 2.2V
(Lamp Fault or Lamp Removal)
© 2008 International Rectifier
or
or
IRS21571D