ONSEMI NCP1251BSN100T1G

Manufacturer No:

NCP1251BSN100T1G

Manufacturer:

ONSEMI

Package:

SOT-23-6 Thin, TSOT-23-6

Description:

PWM Controller, Current Mode, for Offline Power Supplies

Quantity:

Delivery:

Payment:

In Stock :Available

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NCP1251BSN100T1G information

ONSEMI NCP1251BSN100T1G technical specifications, attributes, parameters and parts with similar specifications to ONSEMI NCP1251BSN100T1G.

Type
Parameter

fsw Typ (kHz)
100

Drive Cap. (mA)
300 / 500

Control Mode
Current Mode

MSL Type
1

Container Type
REEL

Short Circuit Protection
Yes

Latch
OVP

Soft Start
Yes

Package Type
TSOP-6

MSL Temp (°C)
260

Topology
Flyback

UVLO (V)
8.8

VCC Max (V)
28

Case Outline
318G-02

Stand-by Mode
Yes

Container Qty.
3000

Download datasheets and manufacturer documentation for ONSEMI NCP1251BSN100T1G.

Datasheet:

e923495c3f41d00020c53b08cd156714.pdf

Package Drawing:

876bc3e3d9ba1fa32a75cc04c5b60418.pdf

The NCP1251 is a highly integrated PWM controller capable of delivering a rugged and high performance offline power supply in a tiny TSOP-6 package. With a supply range up to 28 V, the controller hosts a jittered 65 kHz 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 a minimum level of 26 kHz. As the power further goes down, the part enters skip cycle while limiting the peak current. Over Power Protection (OPP) is a difficult exercise especially when no-load standby requirements drive the converter specifications. The ON proprietary integrated OPP lets you harness the maximum delivered power without affecting your standby performance simply via two external resistors. A latched Over Voltage Protection (OVP) is combined on the same pin. For ease of implementation, an auto-recovery OVP also monitors the Vcc line. These features offer an efficient protection in case of optocoupler failure or adverse open loop operation. Finally, a timer-based short-circuit protection offers the best protection scheme, letting you precisely select the protection trip point irrespective of a loose coupling between the auxiliary and the power windings.

Application

Offline Adapters
AC-DC converters
45W Adapter

End Product

Set-top Boxes
Printers
Notebooks and Netbooks

Feature

Non-dissipative internal and adjustable Over Power Protection (OPP)
Frequency Foldback down to 26 kHz and Skip-Cycle in light load conditions
Internal Ramp Compensation
Frequency jittering from full load to skip-cycle
Latch input for OVP and OTP implementations
Over Voltage Protection (OVP) monitoring on the Vcc pin
See NCP1250 for no Over Voltage Protection (OVP) on the Vcc pin

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.