ADN8831 A High Efficiency TEC Controller Solution

The ADN8831 is a highly integrated solution for controlling the TEC in a laser module used in optical communications systems. It features greater than 90% efficiency and lower than 1% ripple noise together to complete a TEC control function. It also features system-supervising functions such as real temp monitoring, temp lock indication, current limit, switching frequency and phase changeability. Its wave lock input allows Optical equipment designers to build a dual TEC control loop by using both Thermistor and wavelockers. Its 5mm x 5mm tiny chip-scale package saves valuable board space.

The ADN8831 addresses key design challenges:

Features and Benefits
  • True current sensing and over current protection
  • Separate heating and cooling current limits
  • High efficiency: >90%
  • Long-term temperature stability: <0.01°C
  • Temperature lock indication
  • Temperature monitoring output
  • Programmable maximum TEC voltage
  • Oscillator synchronization with an external signal
  • Clock phase adjustment for multiple controllers
  • Programmable switching frequency up to 1 MHz
  • Low noise: <0.05% TEC current ripple
  • Compact 5mm x 5mm LFCSP
Optical
Data Sheets
Documentnote
ADN8831: Thermoelectric Cooler (TEC) Controller Data Sheet (Rev. A)PDF 305 kB
Application Notes
Documentnote
AN-695: Using the ADN8831 TEC Controller Evaluation Board (Rev. C)PDF 695 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADN8831ACPZ-R2 Production32 ld LFCSP (5x5mm) w/3.3mm exposed padREEL 250-40 to 85C00Y
ADN8831ACPZ-REEL7 Production32 ld LFCSP (5x5mm) w/3.3mm exposed padREEL 1500-40 to 85C7.086.22Y
Evaluation Boards
Part NumberDescriptionPriceRoHS
ADN8831-EVALZEvaluation Board100Y
ADN8831: Thermoelectric Cooler (TEC) Controller Data Sheet (Rev. A) adn8831
AN-695: 使用ADN8831 TEC控制器评估板 (Rev. C) adn8831
AN-695: Using the ADN8831 TEC Controller Evaluation Board (Rev. C) adn8831