Overview
The VNI4140K-32 is a monolithic device manufactured by STMicroelectronics, utilizing their VIPower technology. This quad high-side smart power solid-state relay is designed to drive four independent resistive, capacitive, or inductive loads with one side connected to ground. It features very low RDS(on) and per-channel diagnostic capabilities, making it suitable for a variety of industrial and automotive applications. The device includes advanced protection mechanisms such as active current limitation, thermal shutdown, and automatic restart, ensuring robust operation under various load conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (VCC) | -0.3 to 41 | V |
| Output Current (IOUT) per Channel | 1 A | A |
| ON-State Resistance (RDS(on)) | 0.08 Ω (typical at IOUT = 0.5 A, TJ = 25 °C) | Ω |
| Input Voltage (VIN) | 3.3 V CMOS/TTL compatible | V |
| Undervoltage Protection (VUSD) | 7 to 10.5 V | V |
| Junction Shutdown Temperature (TTSD) | 150 to 190 °C | °C |
| Case Shutdown Temperature (TCSD) | 125 to 135 °C | °C |
| ESD Protection | ±25 kV according to IEC 61000-4-2 | kV |
Key Features
- Very low RDS(on) of 0.08 Ω (typical at IOUT = 0.5 A, TJ = 25 °C)
- Per-channel diagnostic and protection mechanisms including overtemperature, short-circuit, and undervoltage protection
- Active current limitation and automatic restart in case of overload
- Fast demagnetization of inductive loads
- Compliance with IEC 61131-2, IEC 61000-4-4, and IEC 61000-4-5 standards
- 5 V and 3.3 V compatible I/Os
- Low supply current and VCC clamping
- Open drain thermal fault pins for each channel
Applications
- Programmable logic control (PLC)
- Industrial PC peripheral input/output
- Numerical control machines
- Automotive and industrial automation systems
- Any application requiring the control of multiple independent loads
Q & A
- What is the VNI4140K-32 used for?
The VNI4140K-32 is used to drive four independent resistive, capacitive, or inductive loads with one side connected to ground, making it suitable for various industrial and automotive applications.
- What is the maximum output current per channel for the VNI4140K-32?
The maximum output current per channel for the VNI4140K-32 is 1 A.
- What protection mechanisms are built into the VNI4140K-32?
The device includes overtemperature protection, short-circuit protection, undervoltage protection, and active current limitation with automatic restart.
- Is the VNI4140K-32 compliant with any specific standards?
Yes, it complies with IEC 61131-2, IEC 61000-4-4, and IEC 61000-4-5 standards.
- What is the typical ON-state resistance (RDS(on)) of the VNI4140K-32?
The typical ON-state resistance (RDS(on)) is 0.08 Ω at IOUT = 0.5 A and TJ = 25 °C.
- How does the VNI4140K-32 handle inductive loads?
The device features fast demagnetization of inductive loads.
- What are the input voltage compatibility and ESD protection of the VNI4140K-32?
The device has 3.3 V CMOS/TTL compatible inputs and ESD protection up to ±25 kV according to IEC 61000-4-2.
- What package types are available for the VNI4140K-32?
The device is available in POWERSSO-24 packages, including tube and tape and reel options.
- How does the VNI4140K-32 manage thermal conditions?
The device includes junction and case overtemperature protection with automatic restart, ensuring the junction temperature remains within safe limits.
- What are some common applications of the VNI4140K-32?
Common applications include programmable logic control, industrial PC peripheral input/output, numerical control machines, and automotive systems.
