P.06

All Rights Reserved Copyright (C) SHINDENGEN ELECTRIC MANUFACTURING CO., LTD. 2002

Password Vol.02-06-e MR2000 Series

3-4

Standby Function

Latch Halt Function for Over-voltage Protection

5

Thermal Shutdown (TSD) to Halt Latch at Overheating

The onboard protection circuits described above reduce the number of components

required and thus simplify design.

6

The standby mode is selected by simply dropping the voltage at the Z/C ((1) pin) to 3.5V or less.

The MR2000 Series supports an ideal standby mode employing a method developed by Shindengen

based on the use of small intermittent output ripples. Fig.7 and Fig.8 show the input voltage Pin,

and the waveform at Po = 1.1W (11V, 0.1A), for a worldwide input Po = 100W power supply for

TV applications.

Standby Po - Pin

Output voltage Po [W]

Fig.7 Input Voltage in Standby Mode

Fig.8 Waveform in Standby Mode

0

0.5

1

1.5

2

2.5

0

0.5

1

1.5

AC110V

AC230V

0V

0A

Vo:2V/DIV

TimeBase:500

s/DIV