Overview
The VIPER17HDTR, produced by STMicroelectronics, is an off-line converter designed for high-efficiency power management. It features an 800 V rugged power section, PWM control, and multiple protection mechanisms including overcurrent, overvoltage, and thermal protection. The device is optimized for low EMI with frequency jittering and meets standby energy saving regulations through its burst mode operation and very low consumption.
The VIPER17HDTR includes a high voltage startup circuit, soft-start, and safe auto-restart after fault condition removal. It also incorporates a brown-out function to protect the switch mode power supply when the input voltage is below the minimum specified level.
Key Specifications
| Parameter | Description | Value | Unit |
|---|---|---|---|
| Breakdown Voltage | Drain-to-source voltage | 800 | V |
| Operating Frequency | For L type / For H type | 60 kHz / 115 kHz | kHz |
| Standby Power | At 265 VAC | < 30 mW | mW |
| Drain Current (nom) | Nominal drain current | 0.4 | A |
| RDS(on) | Drain-source on state resistance | 24 | Ω |
| Operating Temperature | Maximum operating temperature | 150 | °C |
| Package | Package type | SO-16 narrow | |
| RoHS Compliance | RoHS compliance grade | Ecopack2 |
Key Features
- 800 V Avalanche Rugged Power Section: Ensures high voltage handling capability.
- PWM Operation with Frequency Jittering: Reduces EMI filter cost.
- Adjustable Overcurrent Protection: Allows for customizable current limit set point.
- Adjustable and Accurate Overvoltage Protection: Protects against overvoltage conditions.
- On-board Soft-Start: Smooth startup of the device.
- Safe Auto-Restart After Fault Condition: Ensures safe operation after fault removal.
- Hysteresis Thermal Shutdown: Protects against thermal overload.
- Brown-Out Protection: Protects the switch mode power supply during low input voltage conditions.
- High Voltage Startup Circuit: Embedded startup circuit for high voltage applications.
Applications
- Adapters for Portable Devices: PDA, camcorders, shavers, cellular phones, videogames.
- Auxiliary Power Supply: For LCD/PDP TVs, monitors, audio systems, computers, industrial systems, LED drivers.
- SMPS for Consumer Electronics: Set-top boxes, DVD players and recorders, white goods.
Q & A
- What is the breakdown voltage of the VIPER17HDTR?
The breakdown voltage is 800 V.
- What are the operating frequencies for the L and H types of VIPER17HDTR?
The operating frequencies are 60 kHz for the L type and 115 kHz for the H type.
- What is the standby power consumption of the VIPER17HDTR at 265 VAC?
The standby power consumption is less than 30 mW.
- What is the nominal drain current of the VIPER17HDTR?
The nominal drain current is 0.4 A.
- What is the maximum operating temperature of the VIPER17HDTR?
The maximum operating temperature is 150 °C.
- What type of package does the VIPER17HDTR come in?
The VIPER17HDTR comes in an SO-16 narrow package.
- Does the VIPER17HDTR have overcurrent protection?
Yes, it has two levels of overcurrent protection.
- How does the VIPER17HDTR handle thermal overload?
The device features hysteresis thermal shutdown to protect against thermal overload.
- What is the purpose of the brown-out protection in the VIPER17HDTR?
The brown-out protection shuts down the device when the input voltage is below the minimum specified level, protecting the switch mode power supply.
- Does the VIPER17HDTR support soft-start and auto-restart?
Yes, it includes on-board soft-start and safe auto-restart after fault condition removal.
