Part # Brief STEVAL-ISA013V1 datasheet

Part Manufacturer: ST Microelectronics

ST Microelectronics

Part Description: Dual output off-line wide range 24W power supply evaluation board for VIPer53


Part Details:

STEVAL-ISA013V1 Dual output off-line wide range 24W power supply evaluation board for VIPer53 Data Brief Features Switch mode general purpose power supply Input: 85 to 264Vac @ 50/60Hz Output: 12V @ 1A & 5V @ 2.4A Output power (peak) : 24W Switching frequency 100kHz Current mode control 75% efficiency Auxiliary undervoltage lockout with hysteresis Output short circuit protection STEVAL-ISA013V1 Thermal shutdown protection Meets EN55022 Class B EMI specification ST components Meets Blue Angels VIPer53 Description STTA106 BYW98-200 This evaluation board is an off-line wide range dual output general-purpose power supply TL431A capable of delivering up to 24W through two STPS5L40 outputs, +5V and +12V. The board is configured 1.5KE220A for secondary regulation with optocoupler feedback. 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: 5V/12V 5V/15V 5V/24V July 2007 Rev 1 1/5 For further information contact your local STMicroelectronics sales office www.st.com 5 General circuit description STEVAL-ISA013V1 1 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. 2/5


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Brief STEVAL-ISA013V1.pdf Datasheet