power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
power management product selection guide - International Rectifier
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PRODUCT FAMILIES | Halogen Lighting ICs<br />
Power Turned On<br />
VCC < 5.5V (VCCUVL- )<br />
(Power Turned Off)<br />
VCC > 12.1V(VCCUV+ )<br />
T J (T jmax )<br />
1 Oscillator On<br />
/ 2 -Bridge Off<br />
I QCC ≅ 300 µA<br />
Oscillator Off<br />
STANDBY Mode<br />
UVLO Mode<br />
1 / 2 -Bridge Off<br />
I QCC ≅ 300µ A<br />
Oscillator Off<br />
CSD = 0V<br />
VCC > 12.1V (VCCUV+ )<br />
T J (T jmax)<br />
Oscillator On<br />
VCC < 5.5V (V CCUVL-)<br />
(Power Turned Off)<br />
FAULT Mode<br />
1 / 2 -Bridge Off<br />
Oscillator Off<br />
0.56V(V CSOL )=Overload:CSD slow charge<br />
V CS > 1.2V (V CSSC ) = Short Circuit : CSD<br />
fast charge<br />
The halogen segment of the market has also been challenging due to the existing self-oscillating<br />
solution and the extreme cost pressure. With the right technology, this market can<br />
also accept an IC-based solution. This market suffers greatly from reliability and performance<br />
issues. Electronic transformers frequently become damaged due to over-load and<br />
short-circuit fault conditions. Also, they must be able to dim the halogen lamps smoothly and<br />
continuously using a standard phase-cutting triac wall dimmer. The challenge is to provide<br />
extensive protection features, lamp voltage regulation and dimming, in a single 8-pin IC. The<br />
resulting IR2161 halogen solution is a simple and<br />
elegant design that reduces overall component<br />
count and delivers a higher performance. The Typical Connections<br />
adoption of an IC + MOSFET solution will increase<br />
manufacturability and reliability significantly for<br />
RD<br />
these <strong>product</strong>s and help to grow this market segment<br />
RS<br />
DCP1<br />
further as well.<br />
CD<br />
DS<br />
DCP2<br />
AC LINE<br />
INPUT<br />
CLF<br />
LF<br />
D1<br />
Fault Detected<br />
(Vpk at V CS > 0.56V)(V )<br />
Fault Detected<br />
(Vpk at VCS > 9V)<br />
T J (T jmax )<br />
(Over-Temperature)<br />
CSD switched to<br />
run mode<br />
Fault Removed<br />
(Vpk at V CS < 0.5V)<br />
(V CSOL)<br />
D2<br />
VZ<br />
Delay<br />
CSD is slowly<br />
discharged to 2.4V<br />
(V CSDRS)<br />
CVCC1<br />
CVCC2<br />
VCC<br />
COM<br />
CSD<br />
CS<br />
1<br />
2<br />
3<br />
4<br />
Features at a Glance<br />
IR2161 Halogen<br />
• Intelligent Half Bridge Driver<br />
• Auto Resetting Short Circuit Protection<br />
• Auto Resetting Overload Protection<br />
• Latching Over-temperature Protection<br />
• Frequency Wobble (for better EMI)<br />
• Micro<strong>power</strong> Startup (150µA)<br />
• Phase Cut dimmable for Leading/<br />
Trailing Edge<br />
• Output Voltage Shift Comp.<br />
(Longer Lamplife)<br />
• Real Soft-start (prevents overdriving<br />
the lamp)<br />
• Adaptive Dead Time<br />
• Small 8Pin- DIP/SOIC Package<br />
DB<br />
IR2161<br />
8<br />
7<br />
6<br />
5<br />
VB<br />
HO<br />
VS<br />
LO<br />
CB<br />
Q1<br />
Q2<br />
CSNUB<br />
T1<br />
C3<br />
C4<br />
R1<br />
C1<br />
D3<br />
D4<br />
CSD<br />
CCS<br />
RL<br />
RCS<br />
12VAC<br />
OUTPUT<br />
R2<br />
C2<br />
28<br />
POWER MANAGEMENT SELECTION GUIDE / INTERNATIONAL RECTIFIER<br />
www.irf.com
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