NCP1937C1DR2G

$0.78

Description：IC PFC CTRLR CRM 20SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Bulk

SKU:527863a2b43a Category: PFC (Power Factor Correction) Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC PFC CTRLR CRM 20SOIC
Series：-
Mfr：onsemi
Package：Tape & Reel (TR),Bulk
Mode：Critical Conduction (CRM)
Frequency - Switching：-
Voltage - Supply：9V ~ 30V
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：20-LSOP (0.154", 3.90mm Width), 17 Leads
Supplier Device Package：20-SOIC
Current - Startup：20 mA
Grade：-
Qualification：-

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NCP1937C1DR2G

Overview

The NCP1937C1DR2G is a Power Factor Correction (PFC) Combo controller integrating CRM PFC and Quasi-Resonant (QR) Flyback functions. It operates within a supply voltage range of 9V to 30V and supports a switching frequency of 250 kHz. The device is rated for an operating temperature range from -40°C to +125°C, with a typical supply current of 15 mA and power dissipation of 620 mW. It is housed in a 20-SOIC package.

Feature Summary

Integrates Critical Conduction Mode (CRM) PFC and Quasi-Resonant Flyback controllers into a single solution
Supports high-efficiency power conversion through combined PFC and secondary-side regulation control

Applications

Power factor correction circuits
Quasi-resonant flyback converter designs
Combo PFC and flyback power supplies

Procurement Notes

Verify the specific suffix 'C1' against official onsemi documentation to confirm functional differences from other variants like 'B1'. Ensure the 20-SOIC package dimensions match your PCB layout requirements. Confirm RoHS compliance status via the manufacturer's material declaration before finalizing procurement specifications.

Selection Notes

Select this component when a single IC is required to manage both input power factor correction and isolated DC-DC conversion. The integrated design reduces component count compared to discrete solutions. Verify that the 250 kHz switching frequency aligns with your electromagnetic interference (EMI) filtering strategy and thermal management capabilities.

Part Context

This part belongs to the NCP1937 family of combo controllers designed for efficient power supply architectures. It serves as an alternative to separate PFC and flyback controller chips, simplifying board space and design complexity for medium-power applications requiring high power factor and low standby power consumption.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult onsemi technical support or authorized distributors for verified cross-reference information.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.