IR2161S International Rectifier, IR2161S Datasheet - Page 6

• Manufacturer Part Number: IR2161S
• Description: Halogen Converter Control IC in a 8-lead SOIC package. Features Auto Resetting Short Circuit Protection, Auto Resetting Overload Protection, Overtemperature Protection, Phase Cut Dimmable, Adaptive Deadtime, Output Voltage Shift Compensation and Soft
• Manufacturer: International Rectifier

Specifications of IR2161S

• Package: 8-lead SOIC
• Circuit: Electronic Transformer
• Offset Voltage (v): 600
• Pbf: PbF Option Available

IR2161(
6
SHUTDOWN Mode
STANDBY Mode
CSD is slowly discharged
1
I
1
QCC
Oscillator Off
/
/
2
2
(Phase Cut Dimming)
-Bridge Off
-Bridge Off
≅ 300 μA
VCC < 10.5V (V
(V
Auto-Restart Timeout
CSD switched to run mode
CSD
S
(Power Turned Off)
VCC < 5.5V (V
< 2.4V) (V
) & (PbF)
VCC < 10.5V (V
(Phase Cut Dimming)
CCUV-
CSDRS
Fault Confirmed
T
Oscillator On
VCC > 12.1V(V
CCUVL-
(V
J
)
CSD
<135 C
(V
)
CCUV-
CSDSD
)
> 12V)
o
)
(T
)
jmax
CCUV+
)
V
CS
o
V
)
>0.56V(V
CS
> 1.2V (V
Fault Timing Mode
to V
Voltage compensation active
CSD initialized to 5V (V
Power Turned On
CSD charged from Isource
Frequency ramps down to
Initial frequency 130kHz
V
CSD(max)
CSOL
SOFTSTART
CSD varies between
UVLO Mode
CSD (min)
RUN Mode
1
1
I
1
/
CSSC
QCC
Oscillator Off
/
2
)=Overload:CSD slow charge
/
2
fast charge
2
CSD = 0V
Mode
- Bridge On
- Bridge On
-Bridge Off
f
≅ 300 μA
= 5.5V for f
(min)
) = Short Circuit : CSD
= 0 for f
(End of SOFTSTART Mode)
V
CSD switched to Comp function
CSD discharged to 0V
Frequency defaults to f(min)
CSD switched to Shutdown Circuit
Fault Detected (Vpk at V
Oscillator On
CSD
VCC > 12.1V (V
T
J
<135 C
> 5.2V
(min)
CSDOL
(max)
o
(T
)
jmax
(Over-Temperature)
T
)
CCUV+
CSD switched to
run mode
J
(Vpk at V
(Vpk at V
T
(Over-Temperature)
Fault Detected
<135 C
J
VCC < 5.5V (V
(V
(Power Turned Off)
<135 C
)
(Vpk at V
CSLATCH
o
Fault Detected
Fault Removed
CS
o
(T
CS
CS
(V
jmax
> 0.56V (V
(T
> 9V)
CSOL
> 0.56V)(V
)
)
jmax
CS
)
)
< 0.5V)
CCUVL-
FAULT Mode
1
/
Oscillator Off
CSOL
2
CSOL
)
-Bridge Off
discharged to 2.4V
))
CSD is slowly
)
www.irf.com
(V
Delay
CSDRS
)