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AD Monolithic TEC Controller ADN8831 ADN8831ACPZ Thermoelectric Cooler

AD Monolithic TEC Controller ADN8831 ADN8831ACPZ Thermoelectric Cooler

Source:本站Time:2022-05-30Views:

The ADN8831 is a monolithic TEC controller. It has two interface gratings, zero-drift, rail-to-rail comparators and PWM drivers. A unique PWM driver is used in conjunction with an analog driver to control externally selected MOSFETs in the H-bridge. B…

The ADN8831 is a monolithic TEC controller. It has two interface gratings, zero-drift, rail-to-rail comparators and PWM drivers. A unique PWM driver is used in conjunction with an analog driver to control externally selected MOSFETs in the H-bridge. By sensing thermal detector feedback from the TEC, the TEC can be driven to stabilize the laser's programmable temperature diodes or passive components connected to the TEC module. Supports NTC thermistors or positive temperature coefficient (PTC) RTDs. The target temperature is set to an analog voltage input from the DAC or an external resistor divider driven by a reference voltage source. A proportional-integral-derivative (PID) compensation network helps stabilize the ADN8831 thermal control loop quickly and accurately. An example of a tunable PID compensation network is described in the AN-695 application note, using the ADN8831 TEC controller evaluation board.

A typical reference voltage of 2.5 V is available from the ADN8831 for thermistor temperature sensing or TEC voltage/current measurement and limiting cooling and heating modes.


Specification

Application: Thermoelectric Cooler

Current - Supply: 8mA

Voltage - Power Supply: 3V ~ 5.5V

Operating temperature: -40°C ~ 85°C

Mounting Type: Surface Mount Type

Package/Case: 32-WFQFN Exposed Pad, CSP

Vendor Device Package: 32-LFCSP-WQ (5x5)


Application

Thermoelectric Cooler (TEC) Temperature Control

DWDM optical transceiver module

optical fiber amplifier

Optical network system

Instruments requiring TEC temperature control


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