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Product Detailed Parameters
- Description：IC OFFLINE SWITCH FLYBACK 8DIP
- Series：VIPER™
- Mfr：STMicroelectronics
- Package：Tube
- Output Isolation：Isolated
- Internal Switch(s)：Yes
- Voltage - Breakdown：700V
- Topology：Flyback
- Voltage - Start Up：11 V
- Voltage - Supply (Vcc/Vdd)：8V ~ 15V
- Duty Cycle：-
- Frequency - Switching：Up to 200kHz
- Fault Protection：Current Limiting, Over Temperature
- Control Features：-
- Operating Temperature：-
- Package / Case：8-DIP (0.300", 7.62mm)
- Supplier Device Package：8-DIP
- Mounting Type：Through Hole
- Grade：-
- Qualification：-
- Power (Watts)：20 W
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Overview
The VIPER20ADIP-E is an offline switcher from STMicroelectronics' VIPerPlus family, integrating a high-voltage power MOSFET and PWM controller on a single silicon chip. It utilizes current mode control with a fixed switching frequency of 60 kHz. The device features a wide VDD voltage range of 9V to 38V and includes automatic burst mode for low-load efficiency. Key protection mechanisms include overtemperature, overcurrent, and overvoltage protection in hiccup mode. It is housed in a DIP-15 package.
Feature Summary
- Integrates a dedicated current mode PWM controller with a high-voltage power MOSFET on the same silicon chip
- Features automatic burst mode operation in low load conditions to minimize standby power consumption
- Includes comprehensive protection against overtemperature, overcurrent, and overvoltage with auto-restart capability
- Offers a large input voltage range on the VDD pin to accommodate auxiliary supply variations
Applications
- Battery charger adapters
- Standby power supplies for TVs or monitors
- Auxiliary supplies for motor control systems
Procurement Notes
Verify the specific suffix 'DIP-E' to confirm the dual-in-line package configuration, as other variants like 'ASP' exist. Confirm component status, as some VIPer20 series parts may be discontinued. Ensure compatibility with the required 60 kHz fixed frequency and 9V to 38V VDD range for the target auxiliary supply design.
Selection Notes
Select this component for applications requiring a fixed 60 kHz switching frequency rather than adjustable frequencies found in other VIPer models. It is suitable for designs needing a wide VDD operating range (9V to 38V) to handle varying auxiliary voltages. Consider the DIP-15 package if through-hole mounting is preferred over surface mount options available in the same family.
Part Context
The VIPER20ADIP-E belongs to the VIPerPlus family of high-voltage offline converters. This family combines advanced PWM control with rugged power MOSFETs to simplify off-line power supply designs. The DIP-15 variant provides a through-hole option within the broader VIPer20 series, which also includes surface-mount packages like PowerSO-10.
Replacement Considerations
VIPER20A-E: Surface mount variant with similar electrical characteristics but different packaging.
FAQ
What is the switching frequency of the VIPER20ADIP-E?
The VIPER20ADIP-E operates at a fixed switching frequency of 60 kHz.
How does the device handle overload conditions?
It features overcurrent, overtemperature, and overvoltage protection that triggers an auto-restart mechanism in hiccup mode.
