ADN8834 - Analog Devices

ADN8834 1.5A Thermoelectric Cooler (TEC) Controller

The ADN8834 is a monolithic TEC controller with an integrated TEC controller. It has a linear power stage, a pulse-width modulation (PWM) power stage, and two zero-drift, rail-to-rail operational amplifiers. The linear controller works with the PWM driver to control the internal power MOSFETs in an H-bridge configuration. By measuring the thermal sensor feed.

Features

Patented high efficiency single inductor architecture Integrated low RDSON MOSFETs for the TEC controller TEC voltage and current operation monitoring No external sense resistor required Independent TEC heating and cooling current limit settings Programmable maximum TEC voltage 2.0 MHz PWM driver switching frequency External synchronization Two integrated, zero drift, rail-to-rail chopper amplifiers Capable of NTC or RTD thermal sensors 2.50 V reference output with 1% accuracy Temperature lock indicator Available in a 25-ball, 2.5 mm × 2.5 mm WLCSP or in a 24-lead, 4 mm × 4 mm LFCSP APPLICATIO.