November 2014

DocID10240 Rev 2

1/17

17

AN1897

Application note

VIPower™: low-cost universal input DVD supply

with the VIPer22A-E

Introduction

In the past few years, many consumer products have been provided to the end user, such

as DVD or VCD players. Generally, their power supply requires multiple outputs to supply a

variety of control circuits: MCU, motor, amplifier, VFD.

avalanche rugged vertical power MOSFET with current mode control PWM circuitry. The

result is the innovative AC-DC converter, simpler, quicker, with reduced component count

and cheap.

The VIPer family complies with the “Blue Angel” and “Energy Star” norms, with very low total

power consumption in standby mode, thanks to the burst operation. This document presents

the application on DVD player power supply with the VIPer22A-E meeting the specifications

in Table 1.

Figure 1. VIPer22A-E evaluation board

Table 1. Output specifications

Input

Output 1

Output 2

Output 3

Output 4

Output 5

Output 6

Universal

line

5 V+/-5%

(1)

1.

The accuracy of +/-5% is reached for a range of load combination only. See Section 3.2 for cross-

regulation results.

+12 V+/-5%

(1)

-12 V+/-5%

(1)

-26 V+/-5%

(1)

3.3 V+/-5%

(1)

5 V

(1)

Imin.

20 mA

Imax.1.5 A

Imax.

30 mA

Imax.

30 mA

Imax.50 mA

Imax.

150 mA

Imax.100 mA

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