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IR2161-IR2161S
Halogen Converter Control IC in a 8-lead PDIP package. Features Auto Resetting Short Circuit Protection, Auto Resetting Overload ...
ADVANCE DATA Data Sheet No. P060219
International
ISBR Rectifier IR2161(S)
HALOGEN CONVERTOR CONTROL IC
Features Packages
q Intelligent half-bridge driver
q Auto Resetting Short Circuit Protection
q Auto Resetting Overload Protection
q Externally Triggerable Latching Shutdown
q Latching Overtemperature Protection 1, re
q Frequency Modulation "dither" (for lower EMI) 8-Lead SOIC
q Micropower Startup (<300 PA) 8-Lead PDIP IR2161S
q Phase Cut dimmable for leading / trailing edge IR2161
. Output Voltage Shift Compensation.
q Real Softstart
q Adaptive Dead Time
q Small 8 Pin DIP/SOIC Package
Description
The IR2161 is a dedicated Intelligent Half bridge Driver IC for a Halogen convertor (electronic transformer). It
includes all necessary protection features and also allows the Converter to be dimmed externally with a
standard phase cut dimmer with both leading or trailing edge types. This IC provides the advantage of reduced
thermal stress in the lamp due to softstart. There is also compensation of the output voltage for load regulation.
It enables the convertor to operate with extremely low harmonic distortion over the full range of loads. The
IR2161 includes adaptive deadtime to allow cool running MOSFETs and improves the EMI behaviour due to
frequency modulation (dither). All the features are integrated in a small 8 pin DlP/SOIC package to allow for a
size reduction in the next generation of convertors.
Typical Connections
RD ' '
'res RI 3 = CI
C W CVCCIF
AC LINE T- CLF
C " C3 C4
ar F-HF--"
D3 D4 w. t =
RL R2 q C2
= CSD = CCS RCS te' 12VAC
_ OUTPUT
Note: Thmughout this data sheet "convertor" is spelled in accordance with standard IEC 61047 "DC or AC supplied converters
for fdament lamps - Performance requirements".
1
|R2161(S)
International
ADVANCE DATA . .
TOR Rectifier
Absolute Maximum Ratings
Absolute maximum ratings indicate sustained limits beyond which damage to the device may occur. All voltage parameters
are absolute voltages referenced to COM, all currents are defined positive into any lead. The thermal resistance and power
dissipation ratings are measured under board mounted and still air conditions.
Symbol Definition Min. Max. Units
VB High side floating supply voltage -0.3 625
Vs High side floating supply offset voltage VB - 25 VB + 0.3 V
VH0 High side floating output voltage Vs - 0.3 VB + 0.3
VLo Low side output voltage -0.3 Vcc + 0.3
IOMAx Maximum allowable output current (HO,LO) due to external -500 500 mA
power transistor miller effect
VCSDMAX CSD pin voltage -0.3 Vcc + 0.3
Vcs Current sense pin voltage -0.3 VCC+ 0.3 V
lcs Current sense pin current -5 5
bc Supply current (Note 1) -20 20 mA
dV/dt Allowable offset voltage slew rate -50 50 V/ns
PD Maximum power dissipation @ TA 5 +25°C (8 Lead DIP) - 1
PD = (TJMAX-TA)/RthJA (8 Lead SOIC) - 0.625 W
RthJA Thermal resistance, junction to ambient (8 Lead DIP) - 125 °C/W
(8 Lead SOIC) - 200
TJ Junction temperature -55 150
Ts Storage temperature -55 150 ''C
TL Lead temperature (soldering, 10 seconds) - 300
Recommended Operating Conditions
For proper operation the device should be used within the recommended conditions.
Symbol Definition Min. Max. Units
VBS High side floating supply voltage VCC - 0.7 VCLAMP
VBSMIN Minimum required VBS voltage for proper HO functionality - 4
Vs Steady state high-side floating supply offset voltage -1 600 V
Vcc Supply voltage VCCUV+ VCLAMP
ICC Supply current (Note 2) 10 mA
CSD CSD pin external capacitor 47 - nF
Ics Current sense pin current -1 1 mA
TJ Junction temperature -25 125 ''C
Note I: This IC contains a zener clamp structure between the chip VCC and COM which has a nominal breakdown
Note 2:
voltage of 15.6V. Please note that this supply pin should not be driven by a DC, low impedance power source
greater than the VCLAMP specified in the Electrical Characteristics section.
Enough current should be supplied into the V00 pin to keep the internal 15.6V zener clamp diode on this pin
regulating its voltage, VCLAMP-
