44608 데이터 시트보기 (PDF) - ON Semiconductor
부품명
상세내역
제조사
44608 Datasheet PDF : 16 Pages
| |||
MC44608
Few External Components
Reliable and Flexible
SMPS Controller
The MC44608 is a high performance voltage mode controller
designed for off−line converters. This high voltage circuit that
integrates the start−up current source and the oscillator capacitor,
requires few external components while offering a high flexibility and
reliability.
The device also features a very high efficiency stand−by
management consisting of an effective Pulsed Mode operation. This
technique enables the reduction of the stand−by power consumption to
approximately 1.0 W while delivering 300 mW in a 150 W SMPS.
• Integrated Start−Up Current Source
• Lossless Off−Line Start−Up
• Direct Off−Line Operation
• Fast Start−Up
General Features
• Flexibility
• Duty Cycle Control
• Undervoltage Lockout with Hysteresis
• On Chip Oscillator Switching Frequency 40, 75, or 100 kHz
• Secondary Control with Few External Components
Protections
• Maximum Duty Cycle Limitation
• Cycle by Cycle Current Limitation
• Demagnetization (Zero Current Detection) Protection
• “Over VCC Protection” Against Open Loop
• Programmable Low Inertia Over Voltage Protection
Against Open Loop
• Internal Thermal Protection
SMPS Controller
• Pulsed Mode Techniques for a Very High Efficiency
Low Power Mode
• Lossless Startup
• Low dV/dT for Low EMI Radiations
http://onsemi.com
8
1
PDIP−8
P SUFFIX
CASE 626
PIN CONNECTIONS AND
MARKING DIAGRAM
Demag 1
8 Vi
Isense 2
7
Control Input 3
6 VCC
(Top View)
GND 4
5 Driver
(Top View)
AWL = Manufacturing Code
YYWW = Date Code
ORDERING INFORMATION
Device
Switching
Frequency Package Shipping
MC44608P40
40 kHz
Plastic
DIP−8
50/Rail
MC44608P75
75 kHz
Plastic
DIP−8
50/Rail
MC44608P100 100 kHz
Plastic
DIP−8
50/Rail
© Semiconductor Components Industries, LLC, 2003
1
December, 2003 − Rev. 6
Publication Order Number:
MC44608/D
Share Link: 