Overview
The VNI4140K, produced by STMicroelectronics, is a quad high-side smart power solid-state relay designed using the VIPower technology. This monolithic device is capable of driving four independent channels, each able to handle various types of loads (resistive, capacitive, and inductive) with one side connected to ground. It features very low RDS(on) and per-channel diagnostic capabilities, making it suitable for a wide range of industrial applications. The device includes multiple protection mechanisms such as per-channel short-circuit protection, overtemperature protection, and thermal case protection, ensuring robust and reliable operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Output Current | 0.6 A (VNI4140K) or 1.0 A (VNI4140K-32) | A |
| Supply Voltage (VCC) | 10.5 to 36 | V |
| On-State Resistance (RDS(on)) | 0.080 to 0.140 | Ω |
| Input Voltage Compatibility | 3.3 V and 5 V CMOS/TTL | - |
| Junction Operating Temperature | -40 to 125 | °C |
| Storage Temperature | -55 to 150 | °C |
| ESD Protection | Up to ±25 kV (IEC 61000-4-2) | - |
Key Features
- Per-channel short-circuit protection
- Per-channel overtemperature protection
- Thermal case protection with non-simultaneous channel reactivation
- Loss of GND protection
- Undervoltage shutdown with hysteresis
- Overvoltage protection (VCC clamping)
- Very low supply current
- Per-channel open drain thermal fault pins
- Fast demagnetization of inductive loads
- Designed to meet IEC61131-2, IEC61000-4-4, and IEC61000-4-5 standards
Applications
The VNI4140K is recommended for various industrial applications, including:
- Programmable logic control (PLC)
- Industrial PC peripheral input/output
- Numerical control machines
- General industrial automation where robust and reliable load control is required
Q & A
- What is the VNI4140K? The VNI4140K is a quad high-side smart power solid-state relay produced by STMicroelectronics.
- What are the operating output currents for the VNI4140K and VNI4140K-32? The VNI4140K operates at 0.6 A per channel, while the VNI4140K-32 operates at 1.0 A per channel.
- What types of loads can the VNI4140K drive? The VNI4140K can drive resistive, capacitive, and inductive loads.
- What protection mechanisms does the VNI4140K include? The device includes per-channel short-circuit protection, overtemperature protection, thermal case protection, loss of GND protection, undervoltage shutdown, and overvoltage protection.
- Is the VNI4140K compatible with 3.3 V and 5 V logic? Yes, the VNI4140K has 3.3 V and 5 V CMOS/TTL compatible inputs.
- What are the ESD protection capabilities of the VNI4140K? The VNI4140K has ESD protection up to ±25 kV according to IEC 61000-4-2.
- What standards does the VNI4140K comply with? The VNI4140K complies with IEC61131-2, IEC61000-4-4, and IEC61000-4-5 standards.
- How does the thermal protection work in the VNI4140K? The device features thermal case protection with non-simultaneous channel reactivation to avoid high peak current from the supply.
- Can the VNI4140K handle fast demagnetization of inductive loads? Yes, the VNI4140K is designed to handle fast demagnetization of inductive loads.
- What is the storage temperature range for the VNI4140K? The storage temperature range is -55 to 150 °C.
