SGM41299 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 pensating the closed loop temperature control.
SGM41299 Key Features
- High Efficiency Single Inductor Architecture
- Integrated Low RDSON MOSFETs for the TEC
- TEC Voltage and Current Monitoring
- No External Sense Resistor Required
- Independent Heating and Cooling Current-Limit
- PWM Driver Switching Frequency: 2.0MHz (TYP)
- Two Zero-Drift, Rail-to-Rail Chopper Amplifiers
- patible with NTC or RTD Thermal Sensors
- 2.50V Output Voltage Reference
- Temperature Lock Indicator