Summary of ANALOG DEVICES INTRODUCED ULTRATHIN 1.5A ΜMODULE THERMOELECTRIC COOLER REGULATOR
Analog Devices' LTM4663 is a complete 1.5 A μModule TEC regulator in a 3.5 mm × 4 mm × 1.3 mm LGA package, integrating a TEC controller, linear power stage, switching regulator, inductor, and support components. It operates from 2.7 V to 5.5 V, provides ±1.5 A sink/source capability, includes two zero-drift rail-to-rail chopper amplifiers for thermistor and feedback, and requires only input and output capacitors. Features include programmable current/voltage limits, 2.5 V reference, TEC monitoring, 2 MHz default switching, and support for NTC, PTC, and RTD sensors.
Parts used in the LTM4663 Thermoelectric Cooler Regulator:
- LTM4663 μModule TEC regulator (3.5 mm × 4 mm × 1.3 mm LGA package)
- Integrated TEC controller
- Linear power stage
- Switching regulator
- Inductor (included in module)
- Zero-drift, rail-to-rail chopper amplifiers (two)
- 1% accuracy 2.5 V internal reference
- Input capacitors
- Output capacitors
- Thermal sensor interface (NTC, PTC, RTD compatible)
Analog Devices introduced the LTM®4663, a complete 1.5 A μModule® Thermoelectric Cooler (TEC) regulator in a tiny 3.5 mm × 4 mm × 1.3 mm LGA package. Included in the package are the TEC controller, linear power stage, switching regulator, inductor and all support components.
Operating over an input voltage range of 2.7 V to 5.5 V, the LTM4663 supports a 1.5 A continuous sink or source current capability. Only input and output capacitors are needed. The LTM4663 has two zero drift, rail-to-rail chopper amplifiers to serve as the thermistor input amplifier and the temperature feedback control loop.
Features
- Built-in Two Zero-Drift, Rail-to-Rail Chopper Amplifiers
- 2.7 V to 5.5 V Input Voltage Range
- 1.5 A Driving Capability
- 1% Accuracy 2.5 V Internal Reference Output
- TEC Voltage and Current Monitoring
- Independent Programmable Heating and Cooling Current Limit
- Programmable Maximum TEC Voltage
- Default 2 MHz Switching Frequency
- Synchronization from 1.85 MHz to 3.25 MHz
- Capable of NTC, PTC and RTD Thermal Sensors
- 3.5 mm × 4 mm × 1.3 mm LGA Package
Applications
- TEC Temperature Control
- Optical Networking System, Optical Module
- LiDAR System
Read more: ANALOG DEVICES INTRODUCED ULTRATHIN 1.5A ΜMODULE THERMOELECTRIC COOLER REGULATOR
- What is the input voltage range of the LTM4663?
The LTM4663 operates over an input voltage range of 2.7 V to 5.5 V. - How much TEC current can the LTM4663 source or sink continuously?
The LTM4663 supports a 1.5 A continuous sink or source current capability. - What components are included inside the LTM4663 package?
Included are the TEC controller, linear power stage, switching regulator, inductor and all support components. - What additional external components are required to use the LTM4663?
Only input and output capacitors are needed externally. - Does the LTM4663 include temperature sensing amplifier circuitry?
Yes, it has two zero drift, rail-to-rail chopper amplifiers for the thermistor input amplifier and the temperature feedback control loop. - What types of thermal sensors does the LTM4663 support?
It is capable of NTC, PTC and RTD thermal sensors. - What is the default switching frequency of the LTM4663?
The default switching frequency is 2 MHz. - Can the LTM4663 synchronize its switching frequency to an external clock?
Yes, it can synchronize from 1.85 MHz to 3.25 MHz. - Does the LTM4663 provide programmable limits for TEC operation?
Yes, it offers independent programmable heating and cooling current limits and a programmable maximum TEC voltage. - What applications are suitable for the LTM4663?
Applications include TEC temperature control, optical networking systems and modules, and LiDAR systems.
