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MC33364 Datasheet

Critical Conduction GreenLine SMPS Controller

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MC33364
Critical Conduction
GreenLinet SMPS
Controller
The MC33364 series are variable frequency SMPS controllers that
operate in the critical conduction mode. They are optimized for high
density power supplies requiring minimum board area, reduced
component count, and low power dissipation. Integration of the high
voltage startup saves approximately 0.7 W of power compared to the
value of the resistor bootstrapped circuits.
Each MC33364 features an on--board reference, UVLO function, a
watchdog timer to initiate output switching, a zero current detector to
ensure critical conduction operation, a current sensing comparator,
leading edge blanking, a CMOS driver and cycle--by--cycle current
limiting.
The MC33364D1 has an internal 126 kHz frequency clamp. The
MC33364D2 is available without an internal frequency clamp. The
MC33364D has an internal 126 kHz frequency clamp which is pinned
out, so that the designer can adjust the clamp frequency by connecting
appropriate values of resistance.
Features
Lossless Off--Line Startup
Leading Edge Blanking for Noise Immunity
Watchdog Timer to Initiate Switching
Operating Temperature Range --25C to +125C
Shutdown Capability
Over Temperature Protection
Optional/Adjustable Frequency Clamp to Limit EMI
This is a Pb--Free and Halide--Free Device
ORDERING INFORMATION
Device
Package
Shipping
MC33364D1G
96 Units / Rail
MC33364D1R2G
MC33364D2G
SO--8
(Pb--Free)
2500 Units / Tape & Reel
96 Units / Rail
MC33364D2R2G
2500 Units / Tape & Reel
MC33364DG
MC33364DR2G
SO--16
(Pb--Free)
48 Units / Rail
2500 Units / Tape & Reel
†For information on tape and reel specifications, including part orientation
and tape sizes, please refer to our Tape and Reel Packaging Specifications
Brochure, BRD8011/D.
8
1
http://onsemi.com
SO--8
D1, D2 SUFFIX
CASE 751
MARKING
DIAGRAMS
8
M64Dx
ALYW
G
1
16
1
SO--16
D SUFFIX
CASE 751K
16
MC33364D
AWLYWWG
1
x
A
WL
Y
W, WW
G or G
= 1 or 2
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb--Free Package
PIN CONNECTIONS
MC33364D1
MC33364D2
Zero Current
Current Sense
Voltage FB
Vref
18
27
36
45
(Top View)
Line
VCC
Gate Drive
GND
MC33364D
Zero Current
N/C
Current Sense
Voltage FB
N/C
Vref
N/C
Freq Clamp
1
2
3
4
5
6
7
8
16 Line
13 N/C
12 Vcc
11 Gate Drive
10 P GND
9 A GND
(Top View)
Semiconductor Components Industries, LLC, 2010
November, 2010 -- Rev. 18
1
Publication Order Number:
MC33364/D


  ON Semiconductor Electronic Components Datasheet  

MC33364 Datasheet

Critical Conduction GreenLine SMPS Controller

No Preview Available !

MC33364
Vref Vcc
ZCD
FB
Vref regulator
Startup
turn on
UVLO +
--
turn on
Vref
10V
5k
45k
15V/ 8.1V
--
+
1.2V/ 1.0V
15k
Thermal
Shutdown
Watchdog
Timer
CS LEB
FC
0.1V
--
+
R
RQ
S
Frequency Clamp
Line
Vref Vcc
UVLO
+
--
15V/ 7.6V
UVLO
+
--
Reset
15V/ var
Level
SNA
Vcc
Gate
P Gnd
A Gnd
Figure 1. Representative Block Diagram
Input
AC Voltage
Output
Voltage
Rsense
MC33364D
ZCD
Line
CS
FB
Vref
FC
Vcc
Drive
P Gnd
A Gnd
R1 R2
Figure 2. Typical Application Circuit
http://onsemi.com
2


Part Number MC33364
Description Critical Conduction GreenLine SMPS Controller
Maker ON Semiconductor
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MC33364 Datasheet PDF






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