Datasheet LTM4663 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Ultrathin 1.5A µModule Thermoelectric Cooler (TEC) Regulator |
| Pages / Page | 22 / 1 — FEATURES. DESCRIPTION. Built-in Two Zero-Drift, Rail-to-Rail Chopper. … |
| File Format / Size | PDF / 2.1 Mb |
| Document Language | English |
FEATURES. DESCRIPTION. Built-in Two Zero-Drift, Rail-to-Rail Chopper. Amplifiers. 1% Accuracy 2.5V Internal Reference Output
Model Line for this Datasheet
Text Version of Document
LTM4663 Ultrathin 1.5A µModule Thermoelectric Cooler (TEC) Regulator
FEATURES DESCRIPTION
n
Built-in Two Zero-Drift, Rail-to-Rail Chopper
The LTM®4663 is a complete 1.5A µModule®
Amplifiers
Thermoelectric Cooler (TEC) regulator in a tiny 3.5mm × n 2.7V to 5.5V Input Voltage Range 4mm × 1.3mm LGA package. Included in the package are n 1.5A Driving Capability the TEC controller, linear power stage, switching regulator, n
1% Accuracy 2.5V Internal Reference Output
inductor and all support components. n TEC Voltage and Current Monitoring Operating over an input voltage range of 2.7V to 5.5V, n Independent Programmable Heating and Cooling the LTM4663 supports a 1.5A continuous sink or source Current Limit current capability. Only input and output capacitors are n Programmable Maximum TEC Voltage needed. The LTM4663 has two zero drift, rail-to-rail chop- n Default 2MHz Switching Frequency per amplifiers to serve as the thermistor input amplifier n Synchronization from 1.85MHz to 3.25MHz and the temperature feedback control loop. n Capable of NTC, PTC and RTD Thermal Sensors n
3.5mm × 4mm × 1.3mm LGA Package
The LTM4663 supports NTC, PTC thermistors and resis- tive temperature detectors (RTD). The maximum cooling and heating currents can be programmed independently
APPLICATIONS
as well as the maximum TEC voltage. n TEC Temperature Control The LTM4663 is available in LGA RoHS compliant n Optical Networking System, Optical Module terminal finish. n LiDAR System All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 6,486,643.
TYPICAL APPLICATION Efficiency vs TEC Current at VIN = 5V in 1.5A TEC Supply µModule Regulator Cooling/Heating Mode with 2Ω Load
100 90 V V LIM/SD ITEC VTEC EN/SY REF V 80 S IN VIN 2.7V TO 5.5V 70 I 10µF LIM PVIN R 60 49.9k GND 50 LTM4663 VLDR 40 ±1.5A OUTPUT EFFICIENCY (%) T TEC FB CAPABILITY 30 SFB R TAMPOUT 20 x RFB VPWM COOLING MODE TSET PAMPN PAMPOUT 10µF 10 HEATING MODE 4663 TA01a NTC 0 0 0.3 0.6 0.9 1.2 1.5 PID NETWORK LOAD CURRENT (A) 4663 TA01b Rev. 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Package Description Design Resources Related Parts
FEATURES DESCRIPTION
n
Built-in Two Zero-Drift, Rail-to-Rail Chopper
The LTM®4663 is a complete 1.5A µModule®
Amplifiers
Thermoelectric Cooler (TEC) regulator in a tiny 3.5mm × n 2.7V to 5.5V Input Voltage Range 4mm × 1.3mm LGA package. Included in the package are n 1.5A Driving Capability the TEC controller, linear power stage, switching regulator, n
1% Accuracy 2.5V Internal Reference Output
inductor and all support components. n TEC Voltage and Current Monitoring Operating over an input voltage range of 2.7V to 5.5V, n Independent Programmable Heating and Cooling the LTM4663 supports a 1.5A continuous sink or source Current Limit current capability. Only input and output capacitors are n Programmable Maximum TEC Voltage needed. The LTM4663 has two zero drift, rail-to-rail chop- n Default 2MHz Switching Frequency per amplifiers to serve as the thermistor input amplifier n Synchronization from 1.85MHz to 3.25MHz and the temperature feedback control loop. n Capable of NTC, PTC and RTD Thermal Sensors n
3.5mm × 4mm × 1.3mm LGA Package
The LTM4663 supports NTC, PTC thermistors and resis- tive temperature detectors (RTD). The maximum cooling and heating currents can be programmed independently
APPLICATIONS
as well as the maximum TEC voltage. n TEC Temperature Control The LTM4663 is available in LGA RoHS compliant n Optical Networking System, Optical Module terminal finish. n LiDAR System All registered trademarks and trademarks are the property of their respective owners. Protected by U.S. patents, including 6,486,643.
TYPICAL APPLICATION Efficiency vs TEC Current at VIN = 5V in 1.5A TEC Supply µModule Regulator Cooling/Heating Mode with 2Ω Load
100 90 V V LIM/SD ITEC VTEC EN/SY REF V 80 S IN VIN 2.7V TO 5.5V 70 I 10µF LIM PVIN R 60 49.9k GND 50 LTM4663 VLDR 40 ±1.5A OUTPUT EFFICIENCY (%) T TEC FB CAPABILITY 30 SFB R TAMPOUT 20 x RFB VPWM COOLING MODE TSET PAMPN PAMPOUT 10µF 10 HEATING MODE 4663 TA01a NTC 0 0 0.3 0.6 0.9 1.2 1.5 PID NETWORK LOAD CURRENT (A) 4663 TA01b Rev. 0 Document Feedback For more information www.analog.com 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photo Package Description Design Resources Related Parts
