FEATURES

? High Efficiency: ≥90

? Maximum Output Current: 6A

? Maximum Output Voltage: ±VVPS

? Actual Object Temperature Monitoring

? High Stability: 0.01°C

? High Reliability

? Zero EMI

? Compact Size

? 100 lead (Pb)-free and RoHS compliant

DESCRIPTION

The TEC5V6A-NT is an electronic module designed for

driving TECs (Thermo-Electric Coolers) with high stability

in regulating the object temperature, high energy efficiency,

zero EMI, and small package. Figure 1 is the photo of the

actual TEC5V6A-NT.

This module provides interface ports for users to set the

desired object temperature, i.e. set-point temperature; the

maximum output voltage across TEC; and the compensation

network. The compensation network compensates the high

order thermal load and thus stabilizes the temperature control

loop.

It provides these functions: thermistor T-R curve

linearization, temperature measurement and monitoring,

temperature control loop status indication, TEC voltage

monitoring, power up delay, and shut down.

The TEC5V6A-NT comes with a high stability low noise

3.0V voltage reference which can be used for setting the

desired object temperature by using a POT (Potentiometer)

or a DAC (Digital to Analog Converter). When using this

reference for setting the set-point temperature, the set-point

temperature error is independent of this reference voltage.

This is because the internal temperature measurement

network also uses this voltage as the reference, the errors in

setting the temperature and measuring the temperature cancel

with each other, setting the object temperature with higher

stability. This reference can also be utilized by an ADC

(Analog to Digital Converter), for the same reason, the

measurement error will also be independent of the reference

voltage, resulting in a more accurate measurement.

Figure 2 is the real size top view of the controller showing

the pin names and locations with the actual size. TEC5V6ANT

pin functions are shown in Table 1.

Warning: This controller module can only be soldered

manually on the board by a solder iron of

< 310°C (590°F), it cannot go through a

reflow oven process.

The TEC5V6A-NT is packaged in a 6 sided metal enclosure,

which blocks EMIs (Electro-Magnetic Interferences) to

prevent the controller and other electronics from interfering

with each other.