MC33364_06 Datasheet, PDF (1/16 Pages) ON Semiconductor – Critical Conduction GreenLine TM SMPS Controller

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 −25° to +125°C
• Shutdown Capability
• Over Temperature Protection
• Optional/Adjustable Frequency Clamp to Limit EMI
• Pb−Free Packages are Available
ORDERING INFORMATION
Device
Package
Shipping^†
MC33364D1
MC33364D1G
SO−8
SO−8
(Pb−Free)
96 Units / Rail
MC33364D1R2
MC33364D1R2G
SO−8
SO−8
(Pb−Free)
2500 Units / Tape & Reel
MC33364D2
MC33364D2G
SO−8
SO−8
(Pb−Free)
96 Units / Rail
MC33364D2R2
MC33364D2R2G
SO−8
SO−8
(Pb−Free)
2500 Units / Tape & Reel
MC33364D
MC33364DG
SO−16
SO−16
(Pb−Free)
48 Units / Rail
MC33364DR2
MC33364DR2G
SO−16
SO−16
(Pb−Free)
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.
© Semiconductor Components Industries, LLC, 2006
1
July, 2006 − Rev. 16
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
G
= 1 or 2
= Assembly Location
= Wafer Lot
= Year
= Work Week
= Pb−Free Package
= Pb−Free Package
PIN CONNECTIONS
MC33364D1
MC33364D2
Zero Current 1
Current Sense 2
Voltage FB 3
8 Line
7 ^VCC
6 Gate Drive
V_ref 4
5 GND
(Top View)
MC33364D
Zero Current 1
N/C 2
Current Sense 3
Voltage FB 4
N/C 5
V_{ref 6}
N/C 7
Freq Clamp 8
16 Line
13 N/C
12 V_cc
11 Gate Drive
10 P GND
9 A GND
(Top View)
Publication Order Number:
MC33364/D