ONSEMI NCP1238AD65R2G

Manufacturer No:

NCP1238AD65R2G

Manufacturer:

ONSEMI

Package:

8-SOIC (0.154, 3.90mm Width), 7 Leads

Description:

Controller, Fixed Frequency, Current Mode, for Flyback Converters

Quantity:

Delivery:

Payment:

In Stock :Available

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NCP1238AD65R2G information

ONSEMI NCP1238AD65R2G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCP1238AD65R2G.

Type
Parameter

VCC Max (V)
28

Container Type
REEL

Container Qty.
2500

Topology
Flyback

Stand-by Mode
Yes

Latch
Yes

Soft Start
Yes

Package Type
SOIC-7

Short Circuit Protection
Yes

Case Outline
751U

MSL Type
1

MSL Temp (°C)
260

Control Mode
Current Mode

fsw Typ (kHz)
65

Drive Cap. (mA)
1000 / 1000

UVLO (V)
9.5

Download datasheets and manufacturer documentation for ONSEMI NCP1238AD65R2G.

Datasheet:

d110c20cf8832318925f4c3456b058ff.pdf

Package Drawing:

c1e54fbd046d717a6500a81653eb339c.pdf

The NCP1238 is a new generation of the NCP12xx fixed-frequency current-mode controllers featuring Dynamic Self-Supply (DSS), pin to pin compatible with the previous generation. The DSS function greatly simplifies the design of the auxiliary supply and the VCC capacitor by activating the internal start-up current source to supply the controller during transients. Due to its proprietary Soft-Skip™ mode combined with frequency foldback, the controller exhibits excellent efficiency in light load condition while still achieving very low standby power consumption. This Soft-Skip feature also dramatically reduces the risk of acoustic noise, which enables the use of inexpensive transformers and capacitors in the clamping network. Internal frequency jittering, ramp compensation, and a versatile latch input make this controller an excellent candidate for converters where ruggedness and components cost are the key constraints. In addition, the controller includes a new high voltage circuitry that combines a startup current source and a brown-out / line OVP detector able to sense the input voltage either from the rectified ac line or the dc filtered bulk voltage. Finally, due to a careful design, the precision of critical parameters is well controlled over the entire temperature range (-40°C to +125°C), enabling easier design and increased safety (e.g. ±5% for the peak current limit, ±7% for the oscillator).

Application

Ac-dc Adapters for Notebooks, LCD, and Printers
Offline Battery Chargers
Consumer Electronic Power Supplies
Auxiliary/Housekeeping Power Supplies

Feature

Timer-Based Overload Protection with AutoRecovery (Option B) or Latched (Option A) Operation
High-Voltage Current Source with DSS with Built-in Brown-out and Line Overvoltage Protections
Fixed-Frequency Current-Mode Operation with Built-in Ramp Compensation
Frequency Jittering
Adjustable Overpower Compensation
Latch-off Input for Severe Fault Conditions, with Direct Connection of an NTC for Overtemperature Protection (OTP)
Protection Against Winding Short-Circuit
Frequency Foldback transitioning into Soft-Skip
65 kHz Oscillator (100 kHz and 133 kHz Versions Available Upon Request)
V_CC Operation up to 28 V
Increased Precision on Critical Parameters
1.0 A Peak Current Drive Capability
4.0 ms Soft-Start
Internal Thermal Shutdown with Hysteresis
These Devices are Pb-Free, Halogen free/BFR free and are ROHS compliant

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.