2.2 A Temperature Controller

The?WHY56ND?is a general purpose, low cost, analog PI (Proportional, Integral) control loop for use in thermoelectric or resistive heater temperature control applications. The?WHY?maintains precision temperature regulation using an active resistor bridge circuit that operates directly with thermisto ? Low cost\n? Single supply operation: +5 to +26 V\n? Drive ±2.2A of TEC or RH current\n? Heat and cool current limits\n? 14 pin DIP PCB mount\n;

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