NE1118
NE1118 is PWM controller manufactured by NEM.
NE1118 12V/3A
COC V5.0 Tier2 &DOE V6.0
Design
NEM Confidential
The NE1118 is a highly integrated PWM controller. It is built-in with several Features to enhance the performance of off-line power supply in SOP-8 package. With the adjustable OPP function integrated in HV pin, it is easy to design the over power protection well under high/low line condition
- Turbo boost technology during over load or peak load condition
Power boost in a specific period
- HV startup with low leakage current, Brown out function.
Increased frequency during peak load operation to avoid
- Safety Protection: Vcc-GND short test, LPS limitation. transformer saturation.
- Supplementary bias charging during load transient
- Low power consumption through x-cap discharge switch
- System Open Loop Protection
- Output Short Circuit Protection
- Internal 8m S Soft Start Time Period
- Internal 240n S Leading Edge Blanking+500m A/-800m A Gate Drive Capability
Various functions on HV pin
- Supplemental bias charging from HV pin
- HV start-up circuit for lower power consumption.
- Internal Brown-in/ out.
- X-cap discharge. Protection for LPS.
- Frequency Jittering for EMI Reduction
- Internal Slope pensation with Self Detection
- Peak power with Frequency Double to prevent from Tr.
Saturation
- Meet Pb-Free, Halogen Free and Ro HS pliant
NEM Confidential
Typical Application
NEM Confidential
引腳分配及封裝...