IR21571 Description
Thermal overload protection Programmable deadtime Integrated 600V level-shifting gate driver Internal 15.6V zener clamp diode on VCC Micropower startup (150uA) Latch immunity protection on all leads ESD protection on all leads Packages The IR21571 is a fully integrated, fully protected 600V ballast control IC designed to drive virtually all types of rapid start fluorescent lamp ballasts.
IR21571 Key Features
- Programmable preheat time & frequency
- Programmable ignition ramp
- Protection from failure-to-strike
- Lamp filament sensing & protection
- Protection from operation below resonance
- 0.2V CS threshold sync’d to falling edge on LO
- Protection from low-line condition
- Automatic restart for lamp exchange Description
- Thermal overload protection
- Programmable deadtime