Digital temp controllers suits thermoelectric modules

The 5R7-570(A) RoHS compliant open board electronic temperature controllers are designed with a proportional integral control algorithm to provide precise control to thermoelectric modules. The H-bridge temperature control provides a seamless transition between heating and cooling eliminating dead spots. Green LED for heat and blue LED for cooling indicate mode and simultaneous illumination indicates the load circuit is off due to an open sensor.

Pulse width modulation controls the power level in the thermoelectric module at a base frequency of 1 -kHz. Power resolution is one of ±250 steps in the load circuit control. The temperature controller measures1.75 x 3.5 X 3-in. with input voltage from 6 to 28 Vdc, and output voltage from 0 to 36 Vdc, a load current from 0.1 to 12.5 A, 450-W output power control, control stability of ± 0.1°C, and a temperature range of –20° to 150°C.