Overview
The VIPER013XSTR is a high voltage converter IC produced by STMicroelectronics. It integrates an 800 V avalanche-rugged power MOSFET with PWM current mode control, enabling the design of efficient and reliable Switch-Mode Power Supplies (SMPS). This device is designed to meet stringent energy-saving standards, featuring very low consumption and operation in pulse frequency modulation under light load conditions. The VIPER013XSTR supports the design of flyback, buck, and buck-boost converters with a minimal number of components.
Key Specifications
| Parameter | Min. | Typ. | Max. | Unit |
|---|---|---|---|---|
| Breakdown Voltage (VBVDSS) | 800 | - | - | V |
| Drain-Source Leakage Current (IDSS) | 1 | - | - | µA |
| Static Drain-Source ON-Resistance (RDS(on)) at 25°C | 30 | - | 60 | Ω |
| Switching Frequency (FOSC) | 108 | 120 | 132 | kHz |
| Maximum Duty Cycle | 70 | - | 80 | % |
| Operating Temperature Range | -40 | - | 125 | °C |
| Supply Voltage Range | 4.5 | - | 30 | V |
Key Features
- 800 V avalanche-rugged power MOSFET allowing ultra-wide VAC input range
- Embedded HV startup and sense-FET
- Current mode PWM controller
- Drain current limit protection (OCP)
- Wide supply voltage range: 4.5 V to 30 V
- Self-supply option to remove auxiliary winding or bias components
- Low system input power consumption: less than 10 mW @ 230 VAC no-load condition
- Jittered switching frequency to reduce EMI filter cost
- Embedded error amplifier with 1.2 V reference
- Protections with automatic restart: overload/short-circuit (OLP), line or output OVP, max. duty cycle counter, VCC clamp
- Pulse-skip protection to prevent flux-runaway
- Embedded thermal shutdown
- Built-in soft-start for improved system reliability
Applications
- Low power SMPS for home appliances
- Building and home control systems
- Small industrial applications
- Consumer electronics
- Lighting systems
- Motion control systems
- Low power adapters
Q & A
- What is the breakdown voltage of the MOSFET in the VIPER013XSTR?
The breakdown voltage (VBVDSS) of the MOSFET is 800 V.
- What is the typical switching frequency of the VIPER013XSTR?
The typical switching frequency (FOSC) is 120 kHz.
- What are the key protections included in the VIPER013XSTR?
The device includes protections such as overload/short-circuit (OLP), line or output OVP, max. duty cycle counter, VCC clamp, pulse-skip protection, and embedded thermal shutdown.
- What is the operating temperature range of the VIPER013XSTR?
The operating temperature range is from -40°C to 125°C.
- What is the supply voltage range for the VIPER013XSTR?
The supply voltage range is from 4.5 V to 30 V.
- How does the VIPER013XSTR reduce EMI?
The device uses jittered switching frequency to reduce EMI filter cost.
- What types of converters can be designed using the VIPER013XSTR?
The device supports the design of flyback, buck, and buck-boost converters.
- What is the purpose of the embedded HV startup in the VIPER013XSTR?
The embedded HV startup includes an 800 V start-up FET and a switchable HV current source, which charges the VCC capacitor and ensures startup operation.
- Does the VIPER013XSTR have a built-in soft-start feature?
Yes, the device includes a built-in soft-start feature for improved system reliability.
- What is the typical quiescent current of the VIPER013XSTR at no-load condition?
The device has a very low quiescent current, typically less than 10 mW @ 230 VAC no-load condition).
