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- 品牌THERMOPTICS
- 数量100
- 批号19
- 封装DIP
- 说明The DN1221 is a subminiature Bipolar Temperature
Controller for Thermoelectric Coolers (TEC) used in fixed
temperature OEM applications. The device is designed to
operate with a negative temperature coefficient (NTC)
thermistor that senses the temperature of the object
attached to the TEC. Temperature is set with a user
ed resistor. Temperature stability of 0.01°C is
achieved by the linear PI control loop of the DN1221.
Proportional gainintegrator time constant are set
independently with resistors. No external integrator
capacitor is needed. These parameters can be optimized to
minimize temperature overshootstability. In addition,
the maximum coolingheating current supplied to the
TEC can be adjusted independently from 0 to 2.2 amperes
with two resistors.
An evaluation kit is available that contains the DN1221, a
fan cooled TEC,an aluminum cold plate (with
imbedded thermistor) that is attached to the TEC. The
evaluation kit operates on a 12 VDC power supply.
Temperature of the cold plate can be changed from 0 to 60
°C with a variable resistor. The TEC is mounted on a
socket so that it can be easily removed.
