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ST STEVAL-VP26K02F Evaluation Board

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STEVAL-VP26K02F

Two output isolated SSR flyback converter for smart meter and PLC systems using VIPER267KDTR

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The STEVAL-VP26K02F evaluation board implements a double output isolated SSR flyback specifically designed for industrial application supplied from 3-phase input.

The evaluation board has been developed using the VIPER267KDTR offline high-voltage converter which features a 1050 V avalanche-rugged power section, PWM operation at 60 kHz with frequency jittering for lower EMI, current limiting with 700 mA fixed set point, on-board soft-start, safe auto-restart after fault and low standby power.

The power supply provides 12 V at 700 mArms (1 A peak) for the analog circuitry, and 6 V at 200 mA to supply digital circuitry and other low voltage parts.

The power supply is designed to operate across a three-phase input mains from 50 to 290 VAC but can also be connected to a single phase mains from 85 to 500 VAC.

Key features:

Double output voltage: 12 V at 0.7 Arms (1 A peak) and 6 V at 200 mA
Secondary side regulation (SSR)
Extended AC mains input voltage range: 85 to 500 VAC
EMC with EN55022, EN61000, EN61000-4-4, EN61000-4-5, EN61000-4-6
WEEE compliant
RoHS compliant

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1.5kV and 1.7kV MOSFETs portfolio

V_DS [V]	P/N	R_DS(on) (max) [Ω]		Packages
1500	STW21N150K5	0.9		TO-247
	STW12N150K5	1.9		TO-247
	STW9N150	2.5		TO-247
	STx4N150	7		TO-247/ TO-3PF/ TO-220
	STx3N150	9		TO-247/ TO-3PF/ TO-220/ H2PAK-2
1700	STW12N170K5		3	TO-247
	STx3N170		13	TO-247

Product highlights

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