This post describes for the PWM Controller.
The function of this semiconductor is Voltage PWM Controller.
The package is DIP 8 Pin Type.
The manufacturer of this parts is MC44608, MC44608P40G.
See the preview image and the Datasheet PDF file for more information.
Description
The 44608P40 is a high performance voltage mode controller designed for off–line converters. This high voltage circuit that integrates the startup current source and the oscillator capacitor, requires few external components while offering a high flexibility and reliability.
MC44608 Few External Components Reliable and Flexible GreenLine ™ Very High Voltage PWM 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 1W while delivering 300mW in a 150W SMPS.
Features:
• Integrated Start–Up Current Source
• Lossless Off–Line Start–Up
• Direct Off–Line Operation
• Fast Start–Up
[…]
Protections:
1. Maximum Duty Cycle Limitation
2. Cycle by Cycle Current Limitation
3. Demagnetization (Zero Current Detection) Protection
4. “Over VCC Protection” Against Open Loop
SMPS Controller:
1. Pulsed Mode Techniques for a Very High Efficiency Low Power Mode
2. Lossless Startup
3. Low dV/dT for Low EMI Radiations
44608P40 PDF Datasheet
