Overview
The VNI2140JTR is a dual high-side smart power solid state relay designed by STMicroelectronics using their VIPower technology. This monolithic device is capable of driving two independent resistive or inductive loads with one side connected to ground. It features advanced protection mechanisms and diagnostic outputs, making it suitable for a variety of industrial and control applications. The device is packaged in a PowerSSO-12™ package and is available in both tube and tape-and-reel formats.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Power Supply Voltage (VCC) | 9 - 45 | V |
| Nominal Current per Channel | 0.75 A | A |
| Current Limitation per Channel | 1 A | A |
| ON-state Resistance (RDS(ON)) at TJ = 25 °C | 0.080 Ω | Ω |
| ON-state Resistance (RDS(ON)) at TJ = 125 °C | 0.150 Ω | Ω |
| Junction Shutdown Temperature (TTSD) | 150 - 170 °C | °C |
| Case Shutdown Temperature (TCSD) | 125 - 139 °C | °C |
| Input Low Level Voltage (VIL) | - - 0.8 V | V |
| Input High Level Voltage (VIH) | 2.20 - - V | V |
| Electrostatic Discharge (VESD) | 2000 V | V |
Key Features
- Shorted-load protections
- Junction overtemperature protection
- Case overtemperature protection for thermal independence of the channels
- Thermal case shutdown restart not simultaneous for the various channels
- Protection against loss of ground
- Current limitation of 1 A per channel
- Undervoltage shutdown
- Open-load in OFF-state and short to VCC detection
- Open-drain diagnostic outputs
- 3.3 V CMOS/TTL compatible inputs
- Fast demagnetization of inductive loads
- Conforms to IEC 61131-2
Applications
- Programmable logic control
- Industrial PC peripheral input/output
- Numerical control machines
Q & A
- What is the nominal current per channel of the VNI2140JTR?
The nominal current per channel is 0.75 A.
- What are the protection mechanisms included in the VNI2140JTR?
The device includes shorted-load protections, junction overtemperature protection, case overtemperature protection, protection against loss of ground, current limitation, undervoltage shutdown, and open-load in OFF-state and short to VCC detection.
- What is the input voltage compatibility of the VNI2140JTR?
The inputs are 3.3 V CMOS/TTL compatible.
- How does the thermal shutdown work in the VNI2140JTR?
In overload conditions, the channel turns OFF and ON automatically to maintain the junction temperature between TTSD and TR. If the case temperature reaches TCSD, the overloaded channel is turned OFF and restarts only when the case temperature decreases down to TCR.
- What is the purpose of the open-drain diagnostic outputs?
The open-drain diagnostic outputs indicate overtemperature conditions and open-load in OFF-state.
- What are the packaging options for the VNI2140JTR?
The device is available in both tube and tape-and-reel formats.
- What is the maximum power supply voltage for the VNI2140JTR?
The maximum power supply voltage is 45 V.
- How does the device protect against reverse polarity?
Reverse polarity protection can be implemented using a resistor or a diode between the IC GND pin and the load GND.
- What standards does the VNI2140JTR conform to?
The device conforms to IEC 61131-2.
- What is the typical ON-state resistance of the VNI2140JTR at 25 °C?
The typical ON-state resistance at 25 °C is 0.080 Ω.
- What is the storage temperature range for the VNI2140JTR?
The storage temperature range is -55 to 150 °C.
