DTL22A Datasheet | Datel

Features - - - - - - - - - - 0-10V input/control voltage 0-20A output/load current 2.5-50V output pliance voltage 0-100W output/load power 10MΩ output impedance 500Vdc isolation ±1% accuracy under all conditions 200µsec full-scale step response 2" x 2", shielded metal package Operate in parallel for higher power Applications - - - - - Power-supply test and characterization Static/dynamic power-supply burn-in Power-resistor substitution Real-time load simulation Capacitor discharge testing The DTL22A is an isolated (500Vdc), near-ideal (ZIN = ZOUT ≥ 10MΩ), analog/ voltage-controlled current sink. Its 0-20A output/load current is straightforwardly "programmed" by applying a 0-10V input. The control signal can be generated by circuits as simple as the wiper of a trimpot or as sophisticated as programmable logic controllers (PLC’s) or analog-output puter I/O boards (D/A boards). The DTL22A supports any bination of IOUT = 0-20 Amps and VOUT = 2.5-50 Volts. Its thermally efficient, metal package, when properly heat sunk, can dissipate output/load power up to 100 Watts. The easy-to-use DTL22A is an excellent building block for low-cost, fully flexible, power-supply (AC/DC or DC/DC) or power-ponent (MOSFET’s, diodes, etc.) test and burn-in applications. It is accurate (±5m A offset error, ±1% overall accuracy), fast (200µsec full-scale step response), and capable of impressive resolution. If it is controlled with a 12-bit, 0-10V D/A converter, for example, one LSB (least significant bit) of the D/A corresponds to a 5m A change in the DTL22A’s output/load current. The DTL22A is packaged in a small (2" x 2" x 0.5"), thermally efficient metal package incorporating an aluminum baseplate with threaded inserts. It is powered by a single +5V supply and draws a mere 150m A. The DTL22A has an output pliance voltage of 2.5-50 Volts. Should the output/load voltage drop below the 2.5V required for proper biasing, an internal monitoring circuit activates the DTL22A’s output Fault line....