MC34262PG

Description：IC PFC CTRLR CRM 8DIP
Series：-
Mfr：onsemi
Package：Tube

SKU:224388c7b2e4 Category: PFC (Power Factor Correction) Brand: onsemi

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Product introduction

Product Detailed Parameters

Description：IC PFC CTRLR CRM 8DIP
Series：-
Mfr：onsemi
Package：Tube
Mode：Critical Conduction (CRM)
Frequency - Switching：-
Voltage - Supply：12V ~ 28V
Operating Temperature：0°C ~ 85°C
Mounting Type：Through Hole
Package / Case：8-DIP (0.300", 7.62mm)
Supplier Device Package：8-PDIP
Current - Startup：250 µA
Grade：-
Qualification：-

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MC34262PG

Overview

The MC34262PG is an active power factor controller from the MC332 series, designed for pre-converters in electronic ballasts and offline power supplies. It operates in critical conduction mode (CRM) with a maximum switching frequency of 50 kHz. The device supports a supply voltage range of 12 V to 28 V and functions within an operating temperature range of 0°C to +85°C. Packaged in an 8-pin PDIP for through-hole installation, it features internal components including a startup timer, single-quadrant multiplier, zero-current detector, and transconductance error amplifier.

Feature Summary

Single-quadrant dual-input multiplier maintains linear transmission curves to reduce line current distortion
Zero-current detection triggers next conduction period at inductor current zero-crossing
Integrated overvoltage comparator prevents output voltage runaway by terminating MOSFET switching
Fast start circuit pre-charges compensation capacitor to reduce initial startup delay

Applications

Active power factor correction in electronic ballasts
Pre-converter stages in offline power supplies
Critical conduction mode PFC designs

Procurement Notes

Verify component authenticity against onsemi datasheets. Confirm package integrity for PDIP-8. Check RoHS compliance status as historical data indicates potential non-compliance for specific manufacturing dates. Ensure design-in compatibility with CRM control requirements.

Selection Notes

Select this part for through-hole applications requiring CRM operation. Compare against MC33262PG for industrial temperature range (-40°C to +105°C). Verify supply voltage limits match system requirements between 12V and 28V. Consider pinout compatibility if replacing legacy designs.

Part Context

Part of the MC332/MC34262 family of power factor controllers. The MC34262 variant is rated for commercial temperatures (0°C to +85°C), while the MC33262 covers industrial ranges. Both share identical functional architectures for CRM PFC applications.