Overview
The VIPER100ASPTR-E, produced by STMicroelectronics, is a high-performance power management IC designed for offline power supplies. It integrates a state-of-the-art PWM circuit with an optimized high-voltage Vertical Power MOSFET, leveraging STMicroelectronics' proprietary VIPower technology. This device is suitable for a wide range of applications, including those requiring high efficiency and reliability in power conversion.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Continuous Drain-Source Voltage (VDS) | -0.3 to 620 | V |
| Maximum Current (ID) | Internally limited | A |
| Supply Voltage (VDD) | 0 to 15 | V |
| Static Drain-Source On Resistance (RDS(on)) | 2.3 to 4.5 | Ω |
| Junction Operating Temperature (Tj) | Internally limited | °C |
| Storage Temperature (Tstg) | -65 to 150 | °C |
| Power Dissipation at Tc = 25°C (Ptot) | 82 | W |
| Switching Frequency | Up to 200 kHz |
Key Features
- Adjustable switching frequency up to 200 kHz
- Current mode control
- Soft start and shutdown control
- Automatic burst mode operation in stand-by condition, meeting the 'Blue Angel' norm (<1W total power consumption)
- Internally trimmed Zener reference
- Undervoltage lock-out with hysteresis
- Integrated start-up supply
- Over-temperature protection
- Low stand-by current
- Adjustable current limitation
- Avalanche rugged Vertical Power MOSFET (620V/3A)
Applications
The VIPER100ASPTR-E is typically used in offline power supplies, particularly in applications requiring high power efficiency and reliability. These include:
- Universal input power supplies (90-132 Vac and 180-264 Vac, 47-63 Hz)
- Audio equipment power supplies where constant power is crucial during peak loads
- Industrial power supplies needing robust and efficient power conversion
- Consumer electronics requiring low standby power consumption
Q & A
- What is the maximum continuous drain-source voltage of the VIPER100ASPTR-E?
The maximum continuous drain-source voltage (VDS) is -0.3 to 620 V.
- What is the switching frequency range of the VIPER100ASPTR-E?
The switching frequency can be adjusted up to 200 kHz.
- Does the VIPER100ASPTR-E support burst mode operation?
- What is the purpose of the integrated start-up supply in the VIPER100ASPTR-E?
The integrated start-up supply provides the necessary voltage to start the device, ensuring that the power MOSFET is switched off until the VDD voltage reaches a safe level.
- How does the VIPER100ASPTR-E protect against overtemperature conditions?
The device features over-temperature protection with hysteresis, which protects the IC from exceeding its temperature limit.
- Can the VIPER100ASPTR-E be used for both primary and secondary regulation?
- What is the typical application range for the VIPER100ASPTR-E in terms of output power?
- How does the VIPER100ASPTR-E manage low load conditions?
- What kind of protection does the VIPER100ASPTR-E offer against short circuits?
- Is the VIPER100ASPTR-E suitable for audio equipment power supplies?
