Overview
The VIPER100A-E/ASP-E, produced by STMicroelectronics, is a highly integrated power management IC that combines a state-of-the-art PWM circuit with an optimized, high voltage, Vertical Power MOSFET on the same silicon chip. Utilizing VIPower M0 Technology, this device is designed for offline power supplies and offers significant component reduction compared to discrete solutions. It supports secondary power capabilities of up to 50W in wide range conditions and up to 100W in single range or with doubler configuration. The device is compatible with both primary and secondary regulation loops and features burst mode operation for stand-by mode efficiency, meeting the German 'Blue Angel' Norm with less than 1W total power consumption.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VDSS (Drain-Source Voltage) | -0.3 to 700 | V |
| ID (Maximum Current) | Internally limited | A |
| VDD (Supply Voltage) | 0 to 15 | V |
| RDS(on) (Static Drain-Source On Resistance) | 2.8 Ω (at ID = 2A, Tj = 100°C) | Ω |
| tf (Fall Time) | 100 ns | ns |
| tr (Rise Time) | 50 ns | ns |
| Coss (Output Capacitance) | 150 pF | pF |
| Tj (Junction Operating Temperature) | Internally limited | °C |
| Tstg (Storage Temperature) | -65 to 150 | °C |
Key Features
- Adjustable Current Limitation: Allows for customizable current limits to suit various application needs.
- Low Stand-by Current: Minimizes power consumption in stand-by mode.
- Integrated Start-up Supply: Provides an internal start-up mechanism, reducing the need for external components.
- UnderVoltage Lock-Out with Hysteresis: Ensures stable operation by preventing the device from operating below a certain voltage threshold.
- Adjustable Switching Frequency up to 200 kHz: Allows for flexible switching frequency settings.
- Soft Start and Shutdown Control: Smoothly ramps up and down the output voltage to prevent transient spikes.
- Current Mode Control: Enhances stability and response time in the control loop.
- Internally Trimmed Zener Reference: Provides a stable voltage reference for the control circuit.
- Over-Temperature Protection: Protects the device from overheating by shutting down or reducing power when the temperature exceeds a safe limit.
- Automatic Burst Mode Operation in Stand-by Condition: Reduces power consumption to meet the German 'Blue Angel' Norm (<1W total power consumption).
Applications
The VIPER100A-E/ASP-E is typically used in offline power supplies, supporting secondary power capabilities of up to 50W in wide range conditions and up to 100W in single range or with doubler configuration. It is suitable for applications requiring both primary and secondary regulation loops and is particularly beneficial where component count needs to be minimized. The device is also ideal for meeting stringent power consumption standards in stand-by mode, such as the German 'Blue Angel' Norm.
Q & A
- What is the maximum drain-source voltage (VDSS) of the VIPER100A-E/ASP-E?
The maximum drain-source voltage (VDSS) is 700V.
- What is the maximum current (ID) that the VIPER100A-E/ASP-E can handle?
The maximum current (ID) is internally limited.
- What is the typical application range for the VIPER100A-E/ASP-E in terms of power capability?
Typical applications cover offline power supplies with a secondary power capability of 50W in wide range conditions and up to 100W in single range or with doubler configuration.
- Does the VIPER100A-E/ASP-E support burst mode operation?
Yes, it supports automatic burst mode operation in stand-by condition, which helps in reducing power consumption to meet the German 'Blue Angel' Norm (<1W total power consumption).
- What is the significance of the integrated start-up supply in the VIPER100A-E/ASP-E?
The integrated start-up supply reduces the need for external components, simplifying the design and reducing component count.
- How does the under-voltage lock-out with hysteresis feature work?
This feature prevents the device from operating below a certain voltage threshold, ensuring stable operation and preventing damage from low voltage conditions.
- What is the adjustable switching frequency range of the VIPER100A-E/ASP-E?
The switching frequency can be adjusted up to 200 kHz.
- Does the VIPER100A-E/ASP-E have over-temperature protection?
Yes, it has over-temperature protection to prevent the device from overheating.
- What is the typical rise and fall time of the VIPER100A-E/ASP-E?
The typical rise time is 50 ns and the fall time is 100 ns.
- What is the storage temperature range for the VIPER100A-E/ASP-E?
The storage temperature range is -65 to 150°C.
