STEVAL-ISA002V1 STMicroelectronics, STEVAL-ISA002V1 Datasheet

BOARD 6W SINGLE OUTPUT VIPER12A

STEVAL-ISA002V1

Manufacturer Part Number
STEVAL-ISA002V1
Description
BOARD 6W SINGLE OUTPUT VIPER12A
Manufacturer
STMicroelectronics
Series
VIPER™r
Type
DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA002V1

Mfg Application Notes
VIPer12A Single Output - AppNote AN1734
Design Resources
STEVAL-ISA002V1 Gerber Files STEVAL-ISA002V1 Schematic STEVAL-ISA002V1 Bill of Materials
Main Purpose
AC/DC, Primary Side
Outputs And Type
1, Isolated
Power - Output
6W
Voltage - Output
12V
Current - Output
500mA
Voltage - Input
85 ~ 264VAC
Regulator Topology
Flyback
Frequency - Switching
60kHz
Board Type
Fully Populated
Utilized Ic / Part
VIPer12A
Input Voltage
85 V to 264 V
Output Voltage
12 V
Product
Power Management Modules
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
VIPer12A
Other names
497-4930
Features
Applications
This evaluation board is an off-line wide range
single output general-purpose power supply
capable of delivering up to 6W of total output
power. In low load condition, it operates in the
automatic burst mode while in an overvoltage
condition it will operate in hiccup mode.
Other output voltages can easily be achieved by
changing the transformer and a few components
on the board, as shown in the application note.
Transformers are readily available for the following
configurations:
July 2007
For further information contact your local STMicroelectronics sales office.
Switch mode general purpose power supply
Input: 85 to 264 VAC @ 50/60 Hz
Output: 12V @ 0.5A
Output power (peak): 6W
Burst mode operation in standby for blue angel
operation
Switching frequency 60 kHz
75% efficiency
Auxiliary undervoltage lockout with hysteresis
Output short circuit protection
Thermal shutdown protection
Meets EN55022 Class B EMI specification
5V @ 1.2A
12V @ 0.5A
15V @ 0.4A
24V @ 0.25A.
6W single output supply evaluation board using VIPer12A
Rev 1
Description
When working in standby, the valuation board
consumes less than 1W total power consumption
and therefore, meets the “Blue Angel” norm. This
unit operates in burst mode when the output load
is reduced to zero and normal operation will
resume automatically when the power gets back
to a level higher than the standby power. The
output voltage remains regulated even when the
board operates in burst mode. The total power
consumption measured at 115Vac input with zero
load at output is approximately 168mW, while at
230Vac input this value is about 248mW. At
120Vac input, a minimum load of 52mA is needed
to keep the input power consumption at less than
1W.
STEVAL-ISA002V1
STEVAL-ISA002V1
Data Brief
www.st.com
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STEVAL-ISA002V1 Summary of contents

Page 1

... July 2007 For further information contact your local STMicroelectronics sales office. STEVAL-ISA002V1 STEVAL-ISA002V1 Description When working in standby, the valuation board consumes less than 1W total power consumption and therefore, meets the “Blue Angel” norm. This unit operates in burst mode when the output load ...

Page 2

... VIPer12A. The output voltage is regulated with a TL431 (U3) via an optocoupler (U2) to the feedback pin. The output voltage ripple is controlled with the capacitor, C7, with an additional LC PI filter configuration made and C8 possible to modify the output voltages by changing the transformer turns ratio and modifying the resistance values of R6 and R7 in the feedback loop. 2/5 STEVAL-ISA002V1 ...

Page 3

... STEVAL-ISA002V1 2 Board schematic Figure 1. Scheme Board schematic 3/5 ...

Page 4

... Revision history 3 Revision history Table 1. Document revision history Date 20-Jul-2007 4/5 Revision 1 Initial release. STEVAL-ISA002V1 Changes ...

Page 5

... STEVAL-ISA002V1 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...

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