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SGM41299 - 3A Thermoelectric Cooler Controller

General Description

The SGM41299 is a monolithic thermoelectric cooling (TEC) thermostat driver device with two-stage feedback amplifier.

The device includes a differential driver (output) stage, an internal 2.5V output voltage reference and two zero-drift, rail-to-rail chopper amplifiers.

Key Features

  • High Efficiency Single Inductor Architecture.
  • Integrated Low RDSON MOSFETs for the TEC Controller.
  • TEC Voltage and Current Monitoring.
  • No External Sense Resistor Required.
  • Independent Heating and Cooling Current-Limit Settings Programmable Maximum TEC Voltage.
  • PWM Driver Switching Frequency: 2.0MHz (TYP).
  • Two Zero-Drift, Rail-to-Rail Chopper Amplifiers.
  • Compatible with NTC or RTD Thermal Sensors.
  • 2.50V Output Voltage Reference.
  • Temperature Lock.

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Datasheet Details

Part number SGM41299
Manufacturer SG Micro
File Size 1.68 MB
Description 3A Thermoelectric Cooler Controller
Datasheet download datasheet SGM41299 Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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SGM41299 3A Thermoelectric Cooler (TEC) Controller GENERAL DESCRIPTION The SGM41299 is a monolithic thermoelectric cooling (TEC) thermostat driver device with two-stage feedback amplifier. The device includes a differential driver (output) stage, an internal 2.5V output voltage reference and two zero-drift, rail-to-rail chopper amplifiers. The first chopper amplifier biases the sensed temperature signal and another is an error amplifier for compensating the closed loop temperature control. This amplifier can be used with a digital controller as well. The TEC is driven differentially between a linear push-pull stage and a pulse-width modulation (PWM) switching stage.