ONSEMI NCP1239FD65R2G
Manufacturer No:
NCP1239FD65R2G
Manufacturer:
ONSEMI
Package:
8-SOIC (0.154, 3.90mm Width), 7 Leads
Description:
Fixed Frequency Current Mode Controller for Flyback Converter with HV startup
Quantity:
In Stock :4143
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Shipping & Availability
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Shipped from：HK Warehouse
Expected Shipping：Wed, Jun 10 - Thu, Jun 11, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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PURCHASE
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Step1：Prepare product
Step2：Desiccant Protection
Step3：Vacuum Packaging
Step4：Individual Package
Step5：Anti-collision Filling
Step6：Packaging Box
SHIPPING COST
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.
NCP1239FD65R2G Information
ONSEMI NCP1239FD65R2G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCP1239FD65R2G.
- Type
- Parameter
- Container Type
- REEL
- Control Mode
- Current Mode
- Stand-by Mode
- Yes
- Package Type
- SOIC-7
- fsw Typ (kHz)
- 65
- Short Circuit Protection
- Yes
- Latch
- Yes
- MSL Type
- 1
- Topology
- Flyback
- UVLO (V)
- 8
- Type
- Parameter
- Case Outline
- 751U
- Container Qty.
- 2500
- Soft Start
- Yes
- VCC Max (V)
- 35
- Drive Cap. (mA)
- 500 / 500
- MSL Temp (°C)
- 260
Download datasheets and manufacturer documentation for ONSEMI NCP1239FD65R2G.
Datasheet:
Package Drawing:
The NCP1239 is a fixed-frequency current-mode controller featuring the Dynamic Self-Supply. This function greatly simplifies the design of the auxiliary supply and the Vcc capacitor by activating the internal startup current source to supply the controller during start-up, transients, latch, stand-by etc. With a supply range up to 35 V, the controller hosts a jittered 65 or 100-kHz switching circuitry operated in peak current mode control. When the power on the secondary side starts to decrease, the controller automatically folds back its switching frequency down to minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current that insures excellent efficiency in light load condition. It features a timer-based fault detection that ensures the detection of overload and an adjustable compensation to help keep the maximum power independent of the input voltage.
Application
- Auxiliary Power
- Industrial Power
End Product
- AC/DC Power Adapters
- Set-top Box
Feature
- Fixed-frequency 65-kHz or 100-kHz current-mode control operation
- Frequency foldback down to 26 kHz and skip mode
- Adjustable Over Power Protection (OPP) circuit
- High-voltage Current Source with Brown-out (BO) detection
- Internal ramp compensation
- Internal fixed 8-ms soft-start
- Frequency jittering in normal and frequency foldback modes
- 64-ms timer-based short-circuit protection with auto-recovery or latched operation
- Pre-short ready
- Latched OVP on Vcc (NCP1239 A & B versions)
- Latched OVP/OTP input for improved robustness
- 35-V Vcc operation
- +500 mA/ -500 mA peak source/sink drive capability
- Internal thermal shutdown
- Extremely low no-load standby power
- Pin-to-pin compatible with the existing NCP1236/1247 series
AIChipLink – Your Trusted Electronic Components Distributor
12.28 M
Listed Part Number
3,000+
Leading Manufacturers
4.9 M
In-stock SKU
15,000+
Warehouse Area(㎡)
