Overview
The VNI4140K-32, produced by STMicroelectronics, is a monolithic 4-channel driver designed using the VIPower technology. This quad high-side smart power solid-state relay is capable of driving various types of loads, including resistive, capacitive, and inductive loads, 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 and automotive 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 under various conditions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Output Current per Channel | 1.0 A | A |
| Supply Voltage (VCC) | 10.5 to 36 V | V |
| ON-state Resistance (RDS(on)) | 0.08 Ω (typical at IOUT = 0.5 A, TJ = 25 °C) | Ω |
| Junction Operating Temperature | -40 to 125 °C | °C |
| Storage Temperature | -55 to 150 °C | °C |
| Maximum Input Switching Frequency | 10 kHz | kHz |
| ESD Protection | ±25 kV according to IEC 61000-4-2 | kV |
| Package Type | PowerSSO-24 |
Key Features
- Per-channel short-circuit protection and overtemperature protection
- Thermal case protection with automatic restart
- Not simultaneous channel reactivation at thermal case reset to avoid high peak current
- 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 and 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
- Automotive and industrial automation systems
Q & A
- What is the maximum operating output current per channel for the VNI4140K-32?
The maximum operating output current per channel is 1.0 A.
- What types of loads can the VNI4140K-32 drive?
The VNI4140K-32 can drive resistive, capacitive, and inductive loads.
- What protection mechanisms are built into the VNI4140K-32?
The device includes per-channel short-circuit protection, overtemperature protection, thermal case protection, and undervoltage shutdown with hysteresis.
- 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.
- What are the operating temperature ranges for the VNI4140K-32?
The junction operating temperature range is -40 to 125 °C, and the storage temperature range is -55 to 150 °C.
- Does the VNI4140K-32 have ESD protection?
- What is the package type of the VNI4140K-32?
The package type is PowerSSO-24.
- Is the VNI4140K-32 compatible with 3.3 V and 5 V I/Os?
- What standards does the VNI4140K-32 comply with?
The device complies with IEC61131-2, IEC61000-4-4, and IEC61000-4-5 standards.
- How does the VNI4140K-32 handle overload conditions?
In overload conditions, the channel turns OFF and back ON automatically to maintain the junction temperature. If the case temperature reaches a critical level, the overloaded channel is turned OFF and restarts only when the case temperature decreases.
