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STMicroelectronics VIPer318L | Demoboard STEVAL-VP318L2F
15 V/1.2 A isolated PSR Flyback converter based on VIPER31
Overview
| Topology | Flyback Converter |
| Input voltage | 90-265 V |
| Output 1 | 15 V / 1.2 A |
| IC revision | 1 |
Description
The VIPER31 device is a high-voltage converter that smartly integrates an 800 V avalanche rugged power MOSFET with PWM current-mode control. The 800 V breakdown allows extended input voltage range to be applied, as well as to reduce the size of the DRAIN snubber circuit. The IC can meet the most stringent energysaving standards as it has very low consumption and operates in pulse frequency modulation at light load. Overvoltage and undervoltage protections with separate and settable intervention thresholds are available at OVP and UVP pins respectively. UVP can also be used as a disabling input for the entire SMPS, with ultra-low residual input power consumption. Integrated HV startup, sense FET, error amplifier and oscillator with frequency jitter allow a complete application to be designed with a minimum component count. Flyback, buck and buck boost topologies are supported.
Features
- 800 V avalanche-rugged power MOSFET to cover ultra-wide VAC input range
- Embedded HV startup and sense FET
- Current mode PWM controller
- Drain current limit protection (OCP):–710 mA(VIPER317)–850 mA (VIPER318)–990m(VIPER319)
- Wide supply voltage range: 4.5 V to 30 V – < 20 mW @ 230 VAC in no-load; – < 430 mW @ 230 VAC, 25 0mW output load
- Jittered switching frequency reduces the EMI filter cost: – 30 kHz ± 7% (type X) – 60 kHz ± 7% (type L) – 132 kHz ±7% (type H)
- Embedded E/A with 1.2 V reference
- Built-in soft-start for improved system reliability
- Protections with automatic restart:–overload/short circuit (OLP)–thermal shutdown –overvoltage
- Protections without automatic restart:–pulse-skip protection to avoid flux runaway–undervoltage/disable –max.duty cycle
Typical applications
- Low power SMPS for home appliances,home automation,industrial,consumers,lighting, Low power adapters.
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | Fl (mm) | Packaging | ISAT (A) | RDC (mΩ) | fres (MHz) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691213510002 | SPEC | – | 6 files | WR-TBL Series 2135 - 5.08 mm Horizontal Entry Modular w. Rising Cage Clamp | 2 | Rising Cage Clamp | PCB | Yes | Horizontal | 14 to 30 (AWG) 2.08 to 0.0509 (mm²) | – | – | – | -30 °C up to +120 °C | – | – | – | – | Box | – | – | – | – | -30 °C up to +120 °C | – | – | 5.08 | – | 14 | – | – | – | – | – | 10.16 | – | – | THT | |
 | 744821120 | SPEC | 10 files | WE-CMB Common Mode Power Line Choke | 4 | – | – | – | – | – | – | – | XS | -40 °C up to +125 °C | – | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | – | 0.5 | 20 | 1000 | 250 | 1500 | MnZn | 15 | 7.8 | 17.5 | THT | ||
 | 860020573008 | SPEC | 7 files | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | – | – | – | – | – | 100 µF | ±20% | – | – | 12 | – | – | – | Ammopack | – | – | – | 2000 | -40 °C up to +105 °C | 160 | 35 | 2.5 | 6.3 | – | – | – | 35 | – | – | 11 | – | – | – | ||
 | 885012206071 | SPEC | 8 files | WCAP-CSGP MLCCs 25 V(DC) | – | – | – | – | – | – | 100 nF | ±10% | 0603 | -55 °C up to +125 °C | 3.5 | 5 GΩ | X7R Class II | 0.4 | 7" Tape & Reel | – | – | – | – | -55 °C up to +125 °C | – | – | – | – | – | – | – | 25 | – | – | 1.6 | 0.8 | 0.8 | – | ||
| 885012206077 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 100 pF | ±10% | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | ||
| 885012206079 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 220 pF | ±10% | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | ||
| 885012206092 | SPEC | 8 files | WCAP-CSGP MLCCs 50 V(DC) | – | – | – | – | – | – | 33 nF | ±10% | 0603 | -55 °C up to +125 °C | 2.5 | 10 GΩ | X7R Class II | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | 50 | – | – | 1.6 | 0.8 | 0.8 | – | ||
 | 74404043033A | SPEC | 8 files | WE-LQS SMT Power Inductor | – | – | – | – | – | – | – | – | 4025 | -40 °C up to +125 °C | – | – | – | – | – | 1.75 | 33 | 75 | – | -40 °C up to +125 °C | – | – | – | – | 3.23 | 0.0033 | – | – | – | – | 4 | 4 | 2.5 | SMT | ||
| 750317579 | SPEC | – | – | Offline Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691213510002 | SPEC | – |
| 744821120 | SPEC | |
| 860020573008 | SPEC | |
| 885012206071 | SPEC | |
| 885012206077 | SPEC | |
| 885012206079 | SPEC | |
| 885012206092 | SPEC | |
| 74404043033A | SPEC | |
| 750317579 | SPEC | – |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | Pins | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | C | Tol. C | Size | Operating Temperature | DF (%) | RISO | Ceramic Type | Fl (mm) | Packaging | ISAT (A) | RDC (mΩ) | fres (MHz) | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|