VT2848 | VT2848 FPGA

General-Purpose Digital I/O Module

The module VT2848 provides 48 inputs or outputs for digital signals. They may be connected directly to the inputs or outputs of an ECU. Also, other digital signals can be measured or controlled using this module, e.g. to control additional parts of a test bench.

This module is also available as a variant (VT2848 FPGA) with user programmable FPGA.

General-Purpose Digital I/O Module: VT2848 | VT2848 FPGA

Characteristics:
VT2848

Functions for Each Channel

  • Channel individually configurable as input or output channel
  • Sampling of digital input signals with configurable threshold
  • Determination of frequency and duty cycle of PWM signals (on 16 channels)
  • 3 modes for digital output:
    • Push-pull operation against Vbatt or Vext
    • Low-side switch
    • High-side switch against Vbatt or Vext

  • Outputs use transistors to allow endurance tests
  • Autonomous output of a bit stream loaded into module
  • Generation of a PWM signal (on 16 channels)

Technical Data

VT2848
Input of digital signals
  Input voltage 0 V … 60 V
  Input impedance Approx. 200 kΩ
  Threshold 0 … 40 V
  Hysteresis Approx. 0.2 V
  Sampling interval 50 µs
  PMW frequency (PWM measurement) 20 mHz … 500 kHz
Output of digital signals
  Supply voltage Vbatt / Vext 2 … 60 V
  Input current at Vbatt / Vext Max. 7 A
  Output Low  
  – Output voltage (at -20 mA) Max. 0.2 V
  – Output current -200 … 0 mA
  Output High  
  – Output voltage (at 20 mA) Min. Vbatt/Vext -0.9 V
  – Output current 0 … 200 mA
  Length of bit stream 2 … 4,096 Bit
  Output interval (at Vbatt / Vext ≤ 24 V) 5 μs … 65 ms
  Frequency of generated PWM signal  
  – at Vbatt/ext ≤ 60V 20 mHz … 10 kHz
  – at Vbatt/ext ≤ 12V 20 mHz … 200 kHz
Basic Data
  Supply voltage (via backplane) 12 V ±10%
  Power consumption Typ. 5.8 W
  Temperature range 0 … 55 °C
  Dimensions (L x W x H) 300 x 173 x 36 mm
  Weight Approx. 460 g
Maintenance
  Calibration recommended every 12 months
  Accredited (pre/re) calibration according to ISO/IEC 17025:2017

Schematic

Schematic of channels of the VT2848

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