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SGM41299C - 3A Thermoelectric Cooler Driver

General Description

The SGM41299C 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 reference voltage and two zero-drift, rail-to-rail chopper amplifiers.

Key Features

  • High Efficiency Single Inductor Architecture.
  • Single-Ended to Differential Driver with Low RDSON MOSFETs inside.
  • TEC Voltage and Current Monitoring.
  • No External Sense Resistor Required.
  • Independent Heating and Cooling Current/Voltage Limits Programming.
  • PWM Driver Switching Frequency: 2.0MHz (TYP).
  • Two Rail-to-Rail, Zero-Drift Chopper Amplifiers.
  • Compatible with RTD or NTC Thermal Sensors.
  • 2.5V Output Reference Voltage.
  • Temperature Lock Indicato.

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Datasheet Details

Part number SGM41299C
Manufacturer SG Micro
File Size 766.65 KB
Description 3A Thermoelectric Cooler Driver
Datasheet download datasheet SGM41299C 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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SGM41299C 3A Thermoelectric Cooler (TEC) Driver GENERAL DESCRIPTION The SGM41299C 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 reference voltage 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.