Product Overview

Product Overview
MC34262: Power Factor Controller
For complete documentation, see the data sheet
Product Description
The MC34262/MC33262 are active power factor controllers specifically designed for use as a preconverter in electronic ballast and
in off-line power converter applications. These integrated circuits feature an internal startup timer for stand-alone applications, a one
quadrant multiplier for near unity power factor, zero current detector to ensure critical conduction operation, transconductance error
amplifier, quickstart circuit for enhanced startup, trimmed internal bandgap reference, current sensing comparator, and a totem pole
output ideally suited for driving a power MOSFET.
Also included are protective features consisting of an overvoltage comparator to eliminate runaway output voltage due to load
removal, input undervoltage lockout with hysteresis, cycle-by-cycle current limiting, multiplier output clamp that limits maximum peak
switch current, an RS latch for single pulse metering, and a drive output high state clamp for MOSFET gate protection. These
devices are available in dual-in-line and surface mount plastic packages.
Features
•
•
•
•
•
•
•
•
•
Overvoltage Comparator Eliminates Runaway Output Voltage
Internal Startup Timer
One Quadrant Multiplier
Zero Current Detector
Trimmed 2% Internal Bandgap Reference
Totem Pole Output with High State Clamp
Undervoltage Lockout with 6.0 V of Hysteresis
Low Startup and Operating Current
Supersedes Functionality of SG3561 and TDA4817 Simplified Block Diagram
Applications
End Products
• Active Power Factor Control
• Electronic Ballast
• OffLine Power Converters
Part Electrical Specifications
Product
Compliance
Status
PFC
Mode
Freque Control Topolo
ncy
Mode
gy
Operati
on
fSW Typ VCC
(kHz)
Max
(V)
Drive
Cap.
(mA)
UVLO
(V)
Latch
UVP
Inhibiti
on
Packag
e Type
MC34262DG
PPAP
Capable
Active
CCM
Variabl
e
Current Boost
Mode
50
30
500 /
500
Yes
Fixed
No
Yes
SOIC-8
Active
CCM
Variabl
e
Current Boost
Mode
50
30
500 /
500
Yes
Fixed
No
Yes
SOIC-8
Active
CCM
Variabl
e
Current Boost
Mode
50
30
500 /
500
Yes
Fixed
No
Yes
PDIP-8
Pb-free
Halide free
MC34262DR2G
Pb-free
Halide free
MC34262PG
PPAP
Capable
Pb-free
Halide free
For more information please contact your local sales support at www.onsemi.com
Created on: 6/30/2016