IP-7 * Output overvoltage protection with tight tolerance and digital noise filter VIPER28HD / VIPER28LD * Jittered frequency reduces the EMI Packaging Tube SO16 narrow * Soft-start reduces the stress during startup and increases IC lifetime VIPER28HDTR / VIPER28LDTR Tape and reel * Automatic restart after a fault condition December 2014 This is information on a product in full production. DocID15028 Rev 6 1/31 www.st.com Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5
frequency 115 VIPER28LN DIP-7 Tube 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HN DIP-7 Tube 7 800 800 8.5 to 23 Fixed-frequency 115 VIPER28LD SO16N Tube 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HD SO16N Tube 7 800 800 8.5 to 23 Fixed-frequency 115 VIPER28LDTR SO16N Tape and reel 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HDTR SO16N Tape and reel 7 800 800 8.5 to 23 Fixed-frequency 115 (1) eliminates the bias winding supply Design support Part number Package FSW (kHz) Evaluation board order code Description Application note Input voltage (Vac) Output voltage (V) Output current (A) VIPER16HN DIP-7 115 EVLVIP16H-4WFN Non isolated fly-back PSU * 85 to 265 16 0.25 VIPER16HN DIP-7 115 EVLVIP16H-4WFL Isolated flyback PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 EVLVIP16L-4WFN Non isolated fly-back PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 EVLVIP16L-4WFL Isolated flyback PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 STEVAL-ISA010V1 Non-isolated buck converter AN2872 85 to 500 12/5 0.15 VIPER17HN D
DC input high voltage wide range DC Output voltage DRAIN DRAIN EPT VIPER28 GND Table 1. VDD CONT FB Device summary Order codes Package VIPER28LN / VIPER28HN DIP-7 VIPER28LE / VIPER28HE SDIP10 Packaging Tube VIPER28HD / VIPER28LD SO16 narrow VIPER28HDTR / VIPER28LDTR August 2010 Tape and reel Doc ID 15028 Rev 4 1/32 www.st.com 32 Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IP-7 * Output overvoltage protection with tight tolerance and digital noise filter VIPER28HD / VIPER28LD * Jittered frequency reduces the EMI Packaging Tube SO16 narrow * Soft-start reduces the stress during startup and increases IC lifetime VIPER28HDTR / VIPER28LDTR Tape and reel * Automatic restart after a fault condition December 2014 This is information on a product in full production. DocID15028 Rev 6 1/31 www.st.com Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5
IP-7 * Output overvoltage protection with tight tolerance and digital noise filter VIPER28HD / VIPER28LD * Jittered frequency reduces the EMI Packaging Tube SO16 narrow * Soft-start reduces the stress during startup and increases IC lifetime VIPER28HDTR / VIPER28LDTR Tape and reel * Automatic restart after a fault condition December 2014 This is information on a product in full production. DocID15028 Rev 6 1/31 www.st.com Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5
frequency 115 VIPER28LN DIP-7 Tube 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HN DIP-7 Tube 7 800 800 8.5 to 23 Fixed-frequency 115 VIPER28LD SO16N Tube 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HD SO16N Tube 7 800 800 8.5 to 23 Fixed-frequency 115 VIPER28LDTR SO16N Tape and reel 7 800 800 8.5 to 23 Fixed-frequency 60 VIPER28HDTR SO16N Tape and reel 7 800 800 8.5 to 23 Fixed-frequency 115 (1) eliminates the bias winding supply Design support Part number Package FSW (kHz) Evaluation board order code Description Application note Input voltage (Vac) Output voltage (V) Output current (A) VIPER16HN DIP-7 115 EVLVIP16H-4WFN Non isolated fly-back PSU * 85 to 265 16 0.25 VIPER16HN DIP-7 115 EVLVIP16H-4WFL Isolated flyback PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 EVLVIP16L-4WFN Non isolated fly-back PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 EVLVIP16L-4WFL Isolated flyback PSU * 85 to 265 16 0.25 VIPER16LN DIP-7 60 STEVAL-ISA010V1 Non-isolated buck converter AN2872 85 to 500 12/5 0.15 VIPER17HN D
DC input high voltage wide range DC Output voltage DRAIN DRAIN EPT VIPER28 GND Table 1. VDD CONT FB Device summary Order codes Package VIPER28LN / VIPER28HN DIP-7 VIPER28LE / VIPER28HE SDIP10 Packaging Tube VIPER28HD / VIPER28LD SO16 narrow VIPER28HDTR / VIPER28LDTR January 2013 This is information on a product in full production. Tape and reel Doc ID 15028 Rev 5 1/32 www.st.com 32 Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2 Thermal data . . . . . . . . . . . . .
DC input high voltage wide range DC Output voltage DRAIN DRAIN EPT VIPER28 GND Table 1. VDD CONT FB Device summary Order codes Package VIPER28LN / VIPER28HN DIP-7 VIPER28LE / VIPER28HE SDIP10 Packaging Tube VIPER28HD / VIPER28LD SO16 narrow VIPER28HDTR / VIPER28LDTR October 2009 Tape and reel Doc ID 15028 Rev 3 1/32 www.st.com 32 Contents VIPER28 Contents 1 Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Typical power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4 Electrical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.1 Maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4.2 Thermal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .