Overview
The VN808CM-E and VN808CM-32-E are monolithic devices designed with STMicroelectronics VIPower M0-3 technology. These devices are intended to drive any kind of load with one side connected to ground and can be driven using a 3.3 V logic supply. They feature active current limitation combined with thermal shutdown and automatic restart, protecting the device against overload. The devices are especially suitable for industrial applications conforming to IEC 61131.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCC (DC Supply Voltage) | 45 | V |
| IOUT (DC Output Current) | Internally limited (0.7 A for VN808CM-E, 1 A for VN808CM-32-E) | A |
| RDS(on) (On-state Resistance) | 160 mΩ (at TJ = 25 °C), 280 mΩ (at TJ = 125 °C) | mΩ |
| VIN (Input Voltage Range) | 5.5 | V |
| TJ (Junction Operating Temperature) | Internally limited | °C |
| TC (Case Operating Temperature) | Internally limited | °C |
| TSTG (Storage Temperature) | -40 to 150 | °C |
| PTOT (Power Dissipation at TC = 25 °C) | 96 | W |
| Rth(JC) (Thermal Resistance Junction-Case) | 1.3 | °C/W |
| Rth(JA) (Thermal Resistance Junction-Ambient) | 50 (when mounted on FR4 PCB with specific conditions) | °C/W |
Key Features
- CMOS 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 standby current
- Compliance to 61000-4-4 IEC test up to 4 kV
Applications
The VN808CM-E and VN808CM-32-E are especially suitable for industrial applications conforming to IEC 61131. They are ideal for driving various loads in industrial environments, ensuring robust and reliable operation under diverse conditions.
Q & A
- What is the primary function of the VN808CM-E and VN808CM-32-E devices?
The primary function of these devices is to drive any kind of load with one side connected to ground, using a 3.3 V logic supply.
- What is the maximum DC supply voltage for these devices?
The maximum DC supply voltage is 45 V.
- What is the on-state resistance of the VN808CM-E and VN808CM-32-E?
The on-state resistance is 160 mΩ at TJ = 25 °C and 280 mΩ at TJ = 125 °C.
- What kind of thermal protection do these devices offer?
They offer junction overtemperature protection and case overtemperature protection for thermal independence of the channels.
- How do these devices protect against overload conditions?
In overload conditions, the channel turns OFF and ON again automatically to maintain the junction temperature between TJSD and TR. If the case temperature triggers TCSD, overloaded channels are turned OFF and can be turned back ON only when the case temperature decreases down to TCR.
- What happens if the ground pin is disconnected?
The device automatically turns OFF in case of ground pin disconnection.
- What is the maximum storage temperature for these devices?
The maximum storage temperature is -40 to 150 °C.
- Do these devices comply with any specific IEC standards?
Yes, they comply with the 61000-4-4 IEC test up to 4 kV and are suitable for industrial applications conforming to IEC 61131.
- What is the thermal resistance junction-case for these devices?
The thermal resistance junction-case is 1.3 °C/W.
- How do the devices handle shorted load conditions?
The devices feature shorted load protection, ensuring safe operation under such conditions.
