NCP1655
NCP1655 is Power Factor Controller manufactured by onsemi.
features necessary for robust and pact PFC stages, with few external ponents.
Multimode Operation
- Multimode Operation for Optimized Operation over the Line/Load
Range:
- Continuous Conduction Mode (CCM) in Heavy- Load Conditions
- Frequency- Clamped Critical Conduction Mode (FCCr M) in
Medium- and Light- Load Conditions
- FCCr M: Critical Conduction Mode (Cr M) when the Cr M
Switching Frequency is Lower than 130 k Hz, Discontinuous Conduction Mode (DCM) at 130 k Hz Otherwise
- DCM Frequency Reduction in Light Load Conditions
- Minimum DCM Frequency Forced above 25 k Hz
- Valley Turn- On in FCCr M
- Soft- SKIP Mode in Very Light Load Conditions
- Near- Unity Power Factor in All Modes (Except Soft- SKIP Mode)
- Firm Control of the Switching Frequency between 25 k Hz and
130 k Hz
General Features
- VS High- Voltage Line Sensing Pin: Reduced External poments
Count and Minimized Leakage Current patible to Most Severe Standby Specifications (< 30 m A @ 400 V)
- Internal pensation of the Regulation Loop
- Fast Line / Load Transient pensation (Dynamic Response
Enhancer)
- Large VCC Operating Range (9.5 V to 35 V)
- Line Range Detection
- pfc OK Signal For Enabling/Disabling the Downstream Converter
- Jittering for Easing EMI Filtering
Safety Features
- Soft- and Fast- Overvoltage Protection
- Brown- Out Detection
- 2- Level Over Current Detection
- Bulk Under- Voltage Detection
- Thermal Shutdown
.onsemi.
10 1
SOIC- 9 NB CASE 751BP
MARKING DIAGRAM 10
NCP1655X ALYW G
NCP1655X = Specific Device...
