ONSEMI NCP1351BDR2G

Manufacturer No:

NCP1351BDR2G

Manufacturer:

ONSEMI

Package:

8-SOIC (0.154, 3.90mm Width)

Description:

Controller, Variable Off-Time Current Mode, with Short Circuit Protection

Quantity:

Delivery:

Payment:

In Stock :Available

Price not displayed? Please send an RFQ, and we will respond immediately.

NCP1351BDR2G information

ONSEMI NCP1351BDR2G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCP1351BDR2G.

Type
Parameter

Package Type
SOIC-8

Container Qty.
2500

UVLO (V)
Yes

Latch
Yes

Soft Start
No

Drive Cap. (mA)
400 / 400

MSL Temp (°C)
260

Short Circuit Protection
Yes

VCC Max (V)
28

Case Outline
751-07

Container Type
REEL

Topology
Flyback

Stand-by Mode
No

MSL Type
1

Control Mode
Current Mode

fsw Typ (kHz)
Variable

Download datasheets and manufacturer documentation for ONSEMI NCP1351BDR2G.

Datasheet:

a18694431702dc72412e31f9ba22f94b.pdf

Package Drawing:

1384fb13f7e9bb62de6933d25a8c6a04.pdf

93b5c908851ef41bab91c5d6fe0f1841.pdf

The NCP1351 is a current mode controller targeting low power off line flyback Switched Mode Power Supplies (SMPS) where cost is of utmost importance. Based on a fixed peak current technique (quasi fixed TON), the controller decreases its switching frequency as the load becomes lighter. As a result, a power supply using the NCP1351 naturally offers excellent no load power consumption, while optimizing the efficiency in other loading conditions. When the frequency decreases, the peak current is gradually reduced down to approximately 30% of the maximum peak current to prevent transformer mechanical resonance. The risk of acoustic noise is thus greatly diminished while keeping good standby power performance.An externally adjustable timer permanently monitors the feedback activity and protects the supply in presence of a short circuit or an overload. Once the timer elapses, NCP1351 stops switching and stays latched for version A, and tries to restart for Version B.The internal structure features an optimized arrangement which allows one of the lowest available startup current, a fundamental parameter when designing low standby power supplies. The negative current sensing technique minimizes the impact of the switching noise on the controller operation and offers the user to select the maximum peak voltage across his current sense resistor. Its power dissipation can thus be application optimized.Finally, the bulk input ripple ensures a natural frequency smearing which smooths the EMI signature.

Application

Auxiliary Power Supply
Off-line battery chargers

End Product

Printers
Adapters

Feature

Quasi fixed TON, Variable TOFF Current Mode Control
Frequency foldback with Peak Current Compression
Short circuit protection (latched A version or auto restart B version)
Primary or secondary side regulation
Dedicated Latch Input for OTP, OVP
Low start-up current
Natural frequency jittering
Negative current sensing with programmable current sense resistor

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.