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MC34261

Description
Power Factor Controllers
File Size500KB,13 Pages
ManufacturerON Semiconductor
Websitehttp://www.onsemi.cn
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MC34261 Overview

Power Factor Controllers

MC34261, MC33261
Power Factor Controllers
The MC34261/MC33261 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, a one quadrant multiplier for near
unity power factor, zero current detector to ensure critical conduction
operation, high gain error amplifier, 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 input
undervoltage lockout with hysteresis, cycle−by−cycle current limiting,
and a latch for single pulse metering. These devices are available in
dual−in−line and surface mount plastic packages.
Internal Startup Timer
One Quadrant Multiplier
Zero Current Detector
Trimmed 2% Internal Bandgap Reference
Totem Pole Output
Undervoltage Lockout with Hysteresis
Low Startup and Operating Current
Pinout Equivalent to the SG3561
Functional Equivalent to the TDA4817
http://onsemi.com
POWER FACTOR
CONTROLLERS
SEMICONDUCTOR
TECHNICAL DATA
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
Simplified Block Diagram
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO−8)
Zero Current Detector
5
Zero Current
Detect Input
PIN CONNECTIONS
2.5V
Reference
Undervoltage
Lockout
V
CC
8
Voltage Feedback
Input
Compensation
Multiplier Input
Current Sense
Input
1
2
3
4
(Top View)
8 V
CC
7 Drive Output
6 Gnd
5 Zero Current
Detect Input
Drive Output
Multiplier,
Latch,
PWM,
Timer,
&
Logic
7
Current Sense
Input
4
ORDERING INFORMATION
Device
Operating
Temperature Range
T
A
= 0° to +70°C
T
A
=
40° to +85°C
Package
SO−8
Plastic DIP
SO−8
Plastic DIP
Multiplier
Input 3
Gnd
6
Error Amp
Multiplier
Compensation
2
V
ref
Voltage
Feedback
1 Input
MC34261D
MC34261P
MC33261D
MC33261P
©
Semiconductor Components Industries, LLC, 2006
July, 2006
Rev. 3
1
Publication Order Number:
MC34261/D

MC34261 Related Products

MC34261 MC34261P MC34261D MC33261P MC33261D
Description Power Factor Controllers Power Factor Controllers Power Factor Controllers Power Factor Controllers Power Factor Controllers
Is it Rohs certified? - incompatible incompatible incompatible incompatible
Parts packaging code - DIP SOIC DIP SOIC
package instruction - DIP, DIP8,.3 PLASTIC, SOP-8 DIP, DIP8,.3 SOP, SOP8,.25
Contacts - 8 8 8 8
Reach Compliance Code - _compli _compli _compli _compli
ECCN code - EAR99 EAR99 EAR99 EAR99
Analog Integrated Circuits - Other Types - POWER FACTOR CONTROLLER POWER FACTOR CONTROLLER POWER FACTOR CONTROLLER POWER FACTOR CONTROLLER
control mode - CURRENT-MODE CURRENT-MODE CURRENT-MODE CURRENT-MODE
Control Technology - PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION PULSE WIDTH MODULATION
Maximum input voltage - 30 V 30 V 30 V 30 V
Minimum input voltage - 8.8 V 8.8 V 8.8 V 8.8 V
Nominal input voltage - 12 V 12 V 12 V 12 V
JESD-30 code - R-PDIP-T8 R-PDSO-G8 R-PDIP-T8 R-PDSO-G8
JESD-609 code - e0 e0 e0 e0
length - 9.78 mm 4.9 mm 9.78 mm 4.9 mm
Number of functions - 1 1 1 1
Number of terminals - 8 8 8 8
Maximum operating temperature - 70 °C 70 °C 85 °C 85 °C
Maximum output current - 0.5 A 0.5 A 0.5 A 0.5 A
Package body material - PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code - DIP SOP DIP SOP
Encapsulate equivalent code - DIP8,.3 SOP8,.25 DIP8,.3 SOP8,.25
Package shape - RECTANGULAR RECTANGULAR RECTANGULAR RECTANGULAR
Package form - IN-LINE SMALL OUTLINE IN-LINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) - NOT SPECIFIED NOT SPECIFIED - NOT SPECIFIED
Certification status - Not Qualified Not Qualified Not Qualified Not Qualified
Maximum seat height - 4.45 mm 1.75 mm 4.45 mm 1.75 mm
surface mount - NO YES NO YES
Switch configuration - SINGLE SINGLE SINGLE SINGLE
technology - BIPOLAR - BIPOLAR BIPOLAR
Temperature level - COMMERCIAL COMMERCIAL INDUSTRIAL INDUSTRIAL
Terminal surface - Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form - THROUGH-HOLE GULL WING THROUGH-HOLE GULL WING
Terminal pitch - 2.54 mm 1.27 mm 2.54 mm 1.27 mm
Terminal location - DUAL DUAL DUAL DUAL
Maximum time at peak reflow temperature - NOT SPECIFIED NOT SPECIFIED - NOT SPECIFIED
width - 7.62 mm 3.9 mm 7.62 mm 3.9 mm
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