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  • J-Link debug probes
  • Target Supply Adapter

    Target Supply Adapter

    The Target Supply Adapter has a standard 20-pin 0.1" socket towards the J-Link or Flasher and a standard 20-pin 0.1" header on the target side and provides an adjustable supply voltage to the target board.

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    Documentation
    SEGGER Debug & Trace Probes

    Overview

    The Target Supply Adapter provides an adjustable supply voltage to the target board. It has a standard 20-pin 0.1" socket towards the J-Link debug probe or Flasher in-circuit programmer, and a standard 20-pin 0.1" header on the target side and can directly be inserted between the J-Link or Flasher and the debug cable maintaining a 1:1 connection of all debug signals. The supply voltage to the target is provided through pin 19 of the debug cable.

    The supply voltage is fixed to 3.3 V and can be adjusted in the range 3.6 V down to 0.8 V by means of changing a single resistor on the adapter (soldering required, resistor package SMD 0805). Since the Target Supply Adapter is fed by the J-Link, its current capability is limited to 400 mA. Furthermore the current capability depends on the chosen target voltage. Example target voltage/output current combinations:

    • 3,6 V / 400 mA*
    • 3,3 V / 400 mA*(default)
    • 2,5 V / 300 mA**
    • 1,8 V / 200 mA**
    • 1,0 V / 150 mA**

    Notes:
    * To operate the Target Supply Adapter with the battery-powered Flasher Portable adjustment of an additional resistor. (SMD 1206) might be required.
    ** Exceeding these current values will damage the adapter. To increase maximum output current see block diagram below.

    Target Supply Adapter
    Target Supply Adapter
    Target Supply Adapter Schematics
    Target Supply Adapter Schematics

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