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| Part Number | IR2156S | IR2159S | IR2166S | IR2156 | 
|---|---|---|---|---|
| Manufacturer | Infineon Technologies | Infineon Technologies | Infineon Technologies | Infineon Technologies | 
| Product Status | Obsolete | Obsolete | Obsolete | Obsolete | 
| Type | Ballast Controller | Ballast Controller | PFC/Ballast Controller | Ballast Controller | 
| Frequency | 36kHz ~ 44kHz | 25kHz ~ 95kHz | 39kHz ~ 50kHz | 36kHz ~ 44kHz | 
| Voltage - Supply | 10.5V ~ 16.5V | 12V ~ 16.5V | 10V ~ 17V | 10.5V ~ 16.5V | 
| Current - Supply | 10 mA | 10 mA | 10 mA | 10 mA | 
| Current - Output Source/Sink | - | - | - | - | 
| Dimming | No | Yes | No | No | 
| Operating Temperature | -25°C ~ 125°C | -40°C ~ 125°C | -25°C ~ 125°C | -25°C ~ 125°C | 
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | 
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-SOIC (0.154", 3.90mm Width) | 14-DIP (0.300", 7.62mm) | 
| Supplier Device Package | 14-SOIC | 16-SOIC | 16-SOIC | 14-DIP |