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:

Delivery:

Payment:

In Stock :Available

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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

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:

e7400b550f1a39b2643b1bd025753263.pdf

Package Drawing:

c1e54fbd046d717a6500a81653eb339c.pdf

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

User Guide

PURCHASE

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 PAYMENT

For 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.

IMPORTANT NOTICE

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

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.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. 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.