
ONSEMI NCP1381DR2G
Manufacturer No:
NCP1381DR2G
Manufacturer:
Package:
14-SOIC (0.154, 3.90mm Width)
Description:
Controller, Quasi Resonant, Current Mode, Low Standby, with PFC Shutdown
Quantity:
Delivery:




Payment:







In Stock :Available
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NCP1381DR2G information
ONSEMI NCP1381DR2G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCP1381DR2G.
- Type
- Parameter
- Case Outline
- 751A-03
- fsw Typ (kHz)
- Variable
- UVLO (V)
- Yes
- Latch
- Yes
- MSL Type
- 1
- MSL Temp (°C)
- 260
- Container Qty.
- 2500
- Stand-by Mode
- Yes
- Package Type
- SOIC-14
- Container Type
- REEL
- Topology
- Flyback
- VCC Max (V)
- 20
- Control Mode
- Current Mode
- Short Circuit Protection
- Yes
- Soft Start
- Yes
- Drive Cap. (mA)
- 500 / 800
Download datasheets and manufacturer documentation for ONSEMI NCP1381DR2G.
Datasheet:
Package Drawing:
Housed in a SO-14 package, the NCP1381 includes everything needed to build rugged and efficient Quasi-Resonant (QR) Switching Power Supplies. When powered by a front-end Power Factor Correction circuitry, the NCP1381 automatically disconnects the PFC controller in low output loading conditions (with an adjustable level), thus improving the standby power. This is particularly well suited for medium to high power offline applications, e.g. notebook adapters.When the current setpoint falls below a given value, e.g. the output power demand diminishes, the IC automatically enters the so-called skip cycle mode and provides excellent efficiency at light loads. Because this occurs at an adjustable low peak current together with a proprietary Soft-Skip technique, no acoustic noise takes place. Skip cycle also offers the ability to easily select the maximum switching frequency at which foldback and standby take place.The NCP1381 also features several efficient protection options like a) a short-circuit overload detection independent of the auxiliary voltage b) an auto-recovery brown-out detection and c) an input to externally latch the circuit in case of Overvoltage Protection or Over Temperature Protection.NCP1381 vs. NCP1382 Latchoff Level On the Skip Adjustment Pin:3.5 V Typ - NCP13812.5 V Typ - NCP1382
End Product
- High Power AC/DC Adaptors for Notebook, etc.
- Offline Battery Chargers
- Set-Top Boxes Power Supplies,TV Monitors, etc.
Feature
- Current-Mode Quasi-Resonant Operation
- Adjustable Line Over Power Protection
- Extremly Low Startup Current of 15 uA Maximum
- Soft-Skip™ Cycle Capability at Adjustable Peak Currents
- Plateau Sensing Overvoltage
- Brown-out Protection
- Maximum TON Limitation
- Overpower Protection by Current Sense Offset
- Internal 5ms Soft-Start Management
- Short-Circuit Protection Independent of Auxiliary Level
- External Latch Input Pin for an OTP Signal
- Go-To-Standby Signal for the PFC Front Stage
- True Frequency (TON + TOFF) Clamp Circuit
- Low and Noiseless, No-Load Standby Power
- Internal Leading Edge Blanking
- +500 mA/-800 mA Peak Current Drive Capability
- 5 V/10 mA Reference Voltage
User Guide
Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.
MEANS OF PAYMENTFor your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.
RFQ (REQUEST FOR QUOTATIONS)Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.
Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1:Prepare product

Step2:Desiccant Protection

Step3:Vacuum Packaging

Step4:Individual Package

Step5:Anti-collision Filling

Step6:Packaging Box
1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.
Currently, our products are shipped through DHL, FedEx, SF, and UPS.
DELIVERY TIME1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.
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