Overview
The VN808SR is a monolithic octal channel high-side driver designed by STMicroelectronics using their VIPower M0-3 technology. This device is intended for driving various types of loads with one side connected to ground, making it particularly suitable for industrial applications. It conforms to IEC 61131 standards and features advanced protection mechanisms such as junction and case overtemperature protection, current limitation, and undervoltage shutdown. The VN808SR is packaged in a PowerSO-36 format, ensuring efficient thermal management and reliability in demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC (Operating Supply Voltage) | 10.5 - 45 | V |
| RDS(on) (On State Resistance) | 150 - 280 | mΩ |
| IOUT (DC Output Current) | Internally limited (up to 0.7 A) | A |
| VUSD (Undervoltage Shutdown) | 7 - 10.5 | V |
| IS (Supply Current) | 150 µA (OFF state), 12 mA (ON state) | µA, mA |
| TJ (Junction Operating Temperature) | Internally limited | °C |
| TC (Case Operating Temperature) | Internally limited | °C |
| TSTG (Storage Temperature) | -40 to 150 | °C |
| RthJC (Thermal Resistance Junction-Case) | Max 1.3 | °C/W |
| RthJA (Thermal Resistance Junction-Ambient) | Max 50 | °C/W |
Key Features
- VCC/2 compatible input
- Junction overtemperature protection
- Case overtemperature protection for thermal independence of the channels
- Current limitation
- Shorted load protection
- Undervoltage shutdown
- Protection against loss of ground
- Very low stand-by current
- Compliance to IEC 61000-4-4 test up to 4 kV
Applications
The VN808SR is especially suitable for industrial applications, including but not limited to:
- Industrial control systems
- Automotive systems
- Power management in industrial automation
- Any application requiring high-side switching with robust protection features
Q & A
- What is the operating supply voltage range of the VN808SR?
The operating supply voltage range is from 10.5 V to 45 V.
- What is the maximum DC output current of the VN808SR?
The DC output current is internally limited, but it can handle up to 0.7 A.
- What kind of thermal protection does the VN808SR offer?
The device features both junction and case overtemperature protection.
- How does the VN808SR protect against shorted loads?
The device includes current limitation and shorted load protection mechanisms.
- What happens if the ground pin is disconnected?
The device automatically turns OFF in the case of a ground pin disconnection.
- What is the storage temperature range for the VN808SR?
The storage temperature range is from -40°C to 150°C.
- What is the thermal resistance junction-case for the VN808SR?
The thermal resistance junction-case is maximum 1.3°C/W.
- Is the VN808SR compliant with any specific IEC standards?
Yes, it complies with IEC 61000-4-4 test up to 4 kV and IEC 61131 standards.
- What is the typical on-state resistance of the VN808SR?
The typical on-state resistance is 185 mΩ at IOUT = 0.5 A and TJ = 25°C.
- How does the VN808SR handle undervoltage conditions?
The device includes an undervoltage shutdown feature that activates between 7 V and 10.5 V.
