Overview
The VNI4140KTR, produced by STMicroelectronics, is a quad high-side smart power solid-state relay. This monolithic device is realized in STMicroelectronics’ VIPower technology and is designed to drive four independent channels of resistive, capacitive, or inductive loads with one side connected to ground. The VNI4140KTR is part of the VNI4140K family, which includes variants such as the VNI4140K and VNI4140K-32, differing primarily in their output current capabilities (0.6 A for VNI4140K and 1.0 A for VNI4140K-32).
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Output Current | 0.6 A (VNI4140K) or 1.0 A (VNI4140K-32) | A |
| Power Supply Voltage (VCC) | 10.5 to 36 | V |
| On-state Resistance (RDS(on)) | 0.080 to 0.140 | Ω |
| Input Voltage (VIN) | +VCC | V |
| Input Current (IIN) | ±10 mA | mA |
| Operating Temperature (TJ) | -40 to 125 | °C |
| Storage Temperature (TSTG) | -55 to 150 | °C |
| Thermal Resistance Junction-Case (Rth(JC)) | 1.0 to 2.0 | °C/W |
| ESD Protection | ±25 kV (IEC 61000-4-2) | kV |
Key Features
- Per-channel short-circuit protection and overtemperature protection
- Thermal case protection with automatic restart
- Not simultaneous channel reactivation at thermal case reset
- Ability to drive all types of loads (resistive, capacitive, inductive)
- Loss of GND protection and undervoltage shutdown with hysteresis
- Overvoltage protection (VCC clamping)
- Very low supply current
- Per-channel open drain thermal fault pins
- 5 V and 3.3 V compatible I/Os
- Fast demagnetization of inductive loads
- Compliance with IEC61131-2, IEC61000-4-4, and IEC61000-4-5 standards
Applications
- Programmable logic control (PLC)
- Industrial PC peripheral input/output
- Numerical control machines
- General industrial automation where high reliability and robustness are required
Q & A
- What is the VNI4140KTR used for?
The VNI4140KTR is used as a quad high-side smart power solid-state relay to drive various types of loads in industrial and automation applications.
- What are the output current capabilities of the VNI4140K and VNI4140K-32?
The VNI4140K can handle up to 0.6 A per channel, while the VNI4140K-32 can handle up to 1.0 A per channel.
- What kind of protection does the VNI4140KTR offer?
The device offers per-channel short-circuit protection, overtemperature protection, thermal case protection, loss of GND protection, undervoltage shutdown, and overvoltage protection.
- Is the VNI4140KTR compatible with different input voltages?
Yes, it is compatible with 5 V and 3.3 V CMOS/TTL inputs.
- What are the operating temperature ranges for the VNI4140KTR?
The operating temperature range is -40°C to 125°C, and the storage temperature range is -55°C to 150°C.
- Does the VNI4140KTR have ESD protection?
Yes, it has ESD protection according to IEC 61000-4-2 up to ±25 kV.
- How does the thermal shutdown and restart mechanism work?
In overload conditions, the channel turns OFF and back ON automatically to maintain junction temperature. If the case temperature exceeds a certain threshold, the overloaded channel turns OFF and restarts only when the case temperature decreases.
- What standards does the VNI4140KTR comply with?
The device complies with IEC61131-2, IEC61000-4-4, and IEC61000-4-5 standards.
- Can the VNI4140KTR drive inductive loads efficiently?
Yes, it features fast demagnetization of inductive loads.
- What is the package type of the VNI4140KTR?
The device is packaged in a PowerSSO 24 package.
