Maxim has introduced the DS4422/DS4424 low-cost, dual-/quad-channel, sink/source current DACs.
These 12C-controlled 7-bit current devices feature two (DS4422)/four (DS4424) output channels that are specifically designed for power supply margining and adjustment.
Each output channel provides control of a DC-DC power supply by sinking or sourcing current directly into the power supply’s feedback node. This control allows existing power supply designs to be margined and adjusted with minimal redesign, making the DS4422/DS4424 suitable for servers, video processing cards and other DC-DC power supply applications.
The devices power-up in a neutral (or zero-current) output condition to minimise system-startup overhead requirements and allow the power supply feedback resistors to perform in a standard manner.
To maximise versatility, the DACs use an external resistor to program the full-scale current for each output from 50 to 200 µA with ±6% accuracy. The 12C bus can then be used to linearly set the output currents to any of the 127 sink or 127 source steps up to the maximum value.
Two address inputs allow up to four devices or 16 separate supplies to be controlled on a single 12C bus.
Phone:
ADLINK Express-PTL COM module
The ADLINK Express-PTL COM module features advanced hybrid CPU architecture combined with 128 GB...
Acromag XMC-ZU module series
The Acromag XMC-ZU series of modules is designed for real-time processing, high-speed data...
Quectel QSM368Z single board computer
The Quectel QSM368Z single board computer is designed to help accelerate intelligent device...
