Features
• Absolute Maximum Ratings ⎯ Supply voltage Vcc: 24 V ⎯ Junction temperature Tj: –40 to +150°C
• Electrical characteristics
⎯ UVLO operation start voltage VH: 9.5 V ± 0.7 V
⎯ UVLO operation shutdown voltage VL: 8.5 V ± 0.4 V
⎯ UVLO hysteresis voltage Hysuvl: 1.0 V ± 0.4 V
• Functions
⎯ Boost converter control with critical conduction mode
⎯ Two mode overvoltage protection and OVP2 Mode
1: Dynamic OVP corresponding to a voltage rise by load change Mode
2: Static OVP corresponding to overvoltage in stable.
OVP2: OVP2 senses the PFC output voltage by independence pin.
⎯ Feedback loop, open detection
⎯ Overcurrent protection
⎯ Dynamic UVP corresponding to a voltage fall by load change
⎯ Frequency limiter, adjustable
⎯ Zero Current Detect (ZCD) delay time, adjustable
⎯ CS pin's open detection ⎯ Package lineup: Pb-free SOP-8 (JEDEC)