STEVAL-ISA013V1 STMicroelectronics, STEVAL-ISA013V1 Datasheet - Page 2

• Manufacturer Part Number: STEVAL-ISA013V1
• Description: BOARD PWR SUPPLY 24W OUTPUT VIPE
• Manufacturer: STMicroelectronics
• Series: VIPER™r
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of STEVAL-ISA013V1

• Mfg Application Notes: VIPer53A Dual Output AppNote
• Design Resources: STEVAL-ISA013V1 Gerber Files STEVAL-ISA013V1 Schematic STEVAL-ISA013V1 Bill of Materials
• Main Purpose: AC/DC, Primary Side
• Outputs And Type: 2, Isolated
• Power - Output: 24W
• Voltage - Output: 5V, 12V
• Current - Output: 2.4A, 1A
• Voltage - Input: 85 ~ 264VAC
• Regulator Topology: Flyback
• Frequency - Switching: 100kHz
• Board Type: Fully Populated
• Utilized Ic / Part: VIPer53
• Architecture: Analog
• Applications: Power
• Input Voltage: 85 V to 264 V
• Output Voltage: 5 V, 12 V
• Product: Power Management Modules
• Silicon Manufacturer: ST Micro
• Silicon Core Number: VIPer53
• Kit Application Type: Power Management
• Application Sub Type: Power Supply
• Kit Contents: VIPer53 Dual Output Power Supply Board
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: VIPer53
• Other names: 497-4933

General circuit description
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General circuit description
The evaluation board operates from 90 to 264Vac input with an output power peak of 24W
through two output voltages of +5V and +12V.
The AC input is rectified and filtered by the bridge BR1 and the bulk capacitor C2 to generate
the high voltage DC bus applied to the primary winding of the transformer, T1.
The switching frequency is set at 100kHz through R3 and C5.
Secondary regulation is provided by an optocoupler and a programmable voltage reference
(TL431).
The transformer is designed and manufactured by Cramer Coil and Transformer Company, Inc.
This evaluation board has an efficiency of 78% at 115Vac at full load for both outputs.
The evaluation board consumes less than 1W total power consumption when working in burst
mode during standby operation and therefore, meets Blue Angel norm.
STEVAL-ISA013V1