ADN8833 - Analog Devices

ADN8833 1A Thermoelectric Cooler (TEC) Driver

The ADN88331 is a monolithic H-bridge TEC driver with integrated 1 A power MOSFETs. It has a linear power stage with the linear driver (LDR) output and a pulse-width modulation (PWM) power stage with the SW output. Depending on the control voltage at the CONT input, the ADN8833 drives current through a TEC to settle the temperature of a laser diode or a pass.

Features

Patented high efficiency single inductor architecture Integrated low RDSON MOSFETs for TEC driver TEC voltage and current operation monitoring No external sense resistor required Independent TEC heating and cooling current limit settings Programmable maximum TEC voltage 2 MHz PWM driver switching frequency External synchronization Digital thermal control loop compatible 2.50 V reference output with 1% accuracy Available in a 25-ball, 2.5 mm × 2.5 mm WLCSP or in a 24-lead, 4 mm × 4 mm LFCSP APPLICATIONS TEC temperature control Optical modules Optical fiber amplifiers Optical networking systems .