Analog Devices Inc. EVAL-ADN8834 评估板
Analog Devices EVAL-ADN8834 评估板是配有 ADN8834 TEC 控制器的可配置评估板。这些评估板设计用于多种 TEC 模块和热敏电阻。评估板上的 ADN8834 TEC 控制器使用 H 桥配置中的两对免费集成 MOSFET 通过 TEC 提供和控制双向电流。评估板的 TEC 冷却和加热电流极限值设为 1.5A。使用两个板上电阻分压器将 TEC 最大电压编程为 3V。对温度设定点电路进行优化，以配合 10kΩ 的 NTC 热敏电阻使用。板上包含 PID 补偿网络器件。设计人员可以通过焊接不同数值的元器件来替代 PID 补偿网络元器件，使之与温度控制环路特性相匹配，其中热负荷实现所要求的响应时间和温度稳定性。设计人员还可以通过改变相应器件的数值来修改冷却和加热 TEC 电流极限值和最大 TEC 电压设置。此外，设计人员可以将 EVAL-ADN8834 评估板插入带可调元器件的 ADN8833/34 基板，获得模拟温度 PID、温度设定点、最大 TEC 电流和 TEC 电压限值。
The PID compensation network components are included onboard. Designers can replace PID compensation network components by soldering different value components to match the temperature control loop characteristic with the thermal load that achieves the required response time and temperature stability. Designers can also modify the cooling and heating TEC current limits and maximum TEC voltage setting by changing the values of the corresponding components. In addition, designers can plug the EVAL-ADN8834 evaluation boards into the ADN8833/34 baseboard with adjustable components for analog thermal PID, the temperature setpoint, maximum TEC current, and TEC voltage limits.
特性
- Full-featured evaluation boards for the ADN8834
- Complete TEC controller with integrated 1.5A TEC driver
- Operating voltage range VIN = 2.7V to 5.5V
- TEC voltage and current operation monitoring
- Independent TEC heating and cooling current limit settings
- Programmable maximum TEC voltage
- External synchronization from 1.85MHz to 3.25MHz
- Input for NTC thermistor connection
- Output for TEC module wires
- 2.5V reference out
- Disable jumper
- 40mm × 25mm WLCSP board size
- 45mm × 25mm LFCSP board size
发布日期: 2016-01-29
| 更新日期: 2022-03-11