Overview
The VNI8200XPTR, produced by STMicroelectronics, is a monolithic 8-channel driver designed using the VIPower™ technology. This IC is intended to drive any type of load with one side connected to ground, operating within a voltage range of 10.5 V to 36 V. It features a very low supply current, making it energy-efficient in both OFF and ON states. The device supports both parallel and serial (SPI) control interfaces, with the SPI interface capable of operating up to 5 MHz in 8-bit or 16-bit modes. The VNI8200XPTR also includes a 100 mA micropower step-down switching regulator and a 4x2 LED matrix for output status indication.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Voltage Operating Range | 10.5 V to 36 V | V |
| Output Current per Channel | 0.7 A (VNI8200XP), 1.0 A (VNI8200XP-32) | A |
| Supply Current in OFF State | 1 mA | mA |
| Supply Current in ON State | 5.3 mA | mA |
| I/O Compatibility | 5 V and 3.3 V | V |
| SPI Interface Frequency | Up to 5 MHz | MHz |
| DC-DC Output Current | 100 mA | mA |
| Junction Shutdown Temperature | 160 °C to 180 °C | °C |
| Case Shutdown Temperature | 115 °C to 155 °C | °C |
| Package Type | PowerSSO-36 (10.3 x 10.3 mm) with exposed pad down (EPD) | - |
Key Features
- Selectable interface on logic side: SPI or parallel
- 5 MHz SPI interface with output enable, daisy chain, and MCU freeze detection
- 100 mA high-efficiency step-down switching regulator with integrated boot diode and adjustable output voltage
- Channel output status LED driving using a 4x2 multiplexed array
- Fast demagnetization of inductive loads (Vout clamp)
- Overvoltage protection (VCC clamping) and undervoltage shutdown with hysteresis
- Per-channel overload and short-circuit protection, and channel-independent thermal shutdown
- Loss of GND protection and IC warning temperature detection
- Common fault open drain output and Power Good diagnostic
- ESD protection and compliance with IEC61131-2, IEC61000-4-2, IEC61000-4-4, and IEC61000-4-5 standards
Applications
- Programmable logic control
- Industrial PC peripheral input/output
- Numerical control machines
Q & A
- What is the voltage operating range of the VNI8200XPTR?
The VNI8200XPTR operates within a voltage range of 10.5 V to 36 V.
- What are the output current capabilities per channel for the VNI8200XP and VNI8200XP-32?
The VNI8200XP can drive up to 0.7 A per channel, while the VNI8200XP-32 can drive up to 1.0 A per channel.
- What is the supply current in the OFF and ON states?
The supply current is 1 mA in the OFF state and 5.3 mA in the ON state.
- What types of interfaces are supported by the VNI8200XPTR?
The device supports both parallel and serial (SPI) interfaces.
- What is the maximum frequency of the SPI interface?
The SPI interface can operate up to 5 MHz.
- What is the output current capability of the integrated step-down regulator?
The integrated step-down regulator can supply up to 100 mA.
- How does the device protect against over-temperature and short circuits?
The device features per-channel overload and short-circuit protection, as well as channel-independent thermal shutdown.
- What diagnostic features are available on the VNI8200XPTR?
The device includes diagnostic pins for Power Good, case over-temperature, SPI fault, and junction over-temperature detection.
- What is the purpose of the 4x2 LED matrix?
The 4x2 LED matrix is used to indicate the on/off status of each of the 8 outputs.
- What standards does the VNI8200XPTR comply with?
The device complies with IEC61131-2, IEC61000-4-2, IEC61000-4-4, and IEC61000-4-5 standards.
