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MC33368 Datasheet

High Voltage GreenLine Power Factor Controller

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MC33368
High Voltage GreenLine
Power Factor Controller
The MC33368 is an active power factor controller that functions as a
boost preconverter in off–line power supply applications. MC33368 is
optimized for low power, high density power supplies requiring a
minimum board area, reduced component count and low power
dissipation. The narrow body SOIC package provides a small
footprint. Integration of the high voltage startup saves approximately
0.7 W of power compared to resistor bootstrapped circuits.
The MC33368 features a watchdog timer to initiate output
switching, a one quadrant multiplier to force the line current to follow
the instantaneous line voltage a zero current detector to ensure critical
conduction operation, a transconductance error amplifier, a current
sensing comparator, a 5.0 V reference, an undervoltage lockout
(UVLO) circuit which monitors the VCC supply voltage and a CMOS
driver for driving MOSFETs. The MC33368 also includes a
programmable output switching frequency clamp. Protection features
include an output overvoltage comparator to minimize overshoot, a
restart delay timer and cycle–by–cycle current limiting.
Lossless Off–Line Startup
Output Overvoltage Comparator
Leading Edge Blanking (LEB) for Noise Immunity
Watchdog Timer to Initiate Switching
Restart Delay Timer
http://onsemi.com
16
1
16
MARKING
DIAGRAMS
16
DIP–16
P SUFFIX
CASE 648
MC33368P
AWLYYWW
1
16
SO–16
D SUFFIX
CASE 751K
MC33368D
AWLYWW
11
A = Assembly Location
WL = Wafer Lot
YY, Y = Year
WW = Work Week
PIN CONNECTIONS
5.0 Vref
Restart Delay
Voltage FB
Comp
Mult
Current Sense
Zero Current
AGnd
1
2
3
4
5
6
7
8
16 Line
15 N/C
14 N/C
13 Frequency Clamp
12 VCC
11 Gate
10 PGnd
9 LEB
(Top View)
5.0 Vref
Restart Delay
Voltage FB
Comp
Mult
Current Sense
Zero Current
AGnd
1
2
3
4
5
6
7
8
16 Line
13 Frequency Clamp
12 VCC
11 Gate
10 PGnd
9 LEB
(Top View)
ORDERING INFORMATION
Device
Package
Shipping
MC33368D
SO–16
48 Units/Rail
MC33368DR2
SO–16 2500 Tape & Reel
MC33368P
DIP–16
25 Units/Rail
© Semiconductor Components Industries, LLC, 2000
April, 2000 – Rev. 4
1
Publication Order Number:
MC33368/D


  ON Semiconductor Electronic Components Datasheet  

MC33368 Datasheet

High Voltage GreenLine Power Factor Controller

No Preview Available !

MC33368
Restart Delay
FB
Comp
Mult
LEB
Current Sense
ZC Det
Representative Block Diagram
Restart Delay
Output
Overvoltage
Multiplier/
Error
Amplifier
PWM
Current
Sense
WatchdogTimer/
Zero Current Detector
UVLO
S
S
RQ
This device contains 240 active transistors.
Internal Bias
Generator
Frequency
Clamp
Line
VCC
Vref
AGnd
Gate
PGnd
Frequency
Clamp
MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.)
Rating
Power Supply Voltage (Transient)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Supply Voltage(Operating)
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLine Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Sense, Multiplier, Compensation, Voltage Feedback, Restart Delay and Zero
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁCurrent Input Voltage
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁLEB Input, Frequency Clamp Input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁZero Current Detect Input
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁRestart Diode Current
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Dissipation and Thermal Characteristics
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁP Suffix, Plastic Package Case 648
Symbol
VCC
VCC
VLine
Vin1
Vin2
Iin
Iin
Value
20
16
500
–1.0 to +10
–1.0 to +20
±5.0
5.0
Unit
V
V
V
V
V
mA
mA
Maximum Power Dissipation @ TA = 70°C
Thermal Resistance, Junction–to–Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁPower Dissipation and Thermal Characteristics
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁD Suffix, Plastic Package Case 751K
PD
RθJA
1.25 mW
100 °C/W
Maximum Power Dissipation @ TA = 70°C
Thermal Resistance, Junction–to–Air
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Junction Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁOperating Ambient Temperature
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁÁStorage Temperature Range
PD
RθJA
TJ
TA
Tstg
450
178
150
–25 to +125
–55 to +150
mW
°C/W
°C
°C
°C
NOTE: ESD data available upon request.
http://onsemi.com
2


Part Number MC33368
Description High Voltage GreenLine Power Factor Controller
Maker ON Semiconductor
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MC33368 Datasheet PDF






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