ADN8833 Series

Ultracompact, 1 A Thermoelectric Cooler (TEC) Driver for Digital Control Systems

Catalog

Ultracompact, 1 A Thermoelectric Cooler (TEC) Driver for Digital Control Systems

Part	Type	Function	Utilized IC / Part	Supplied Contents	Primary Attributes [Min]	Primary Attributes [Max]	Contents	Current - Supply	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Package / Case	Applications	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]
Analog Devices ADN8833CP-EVALZ	Power Management	Thermoelectric Cooler	ADN8833	Board(s)	2.7 V	5.5 V	Board(s)
Analog Devices ADN8833ACBZ-R7								2.1 mA	125 °C	-40 °C	2.7 V	5.5 V	Surface Mount	25-WFBGA WLCSP	Thermoelectric Cooler	2.54	25-WLCSP	2.54

Catalog

Ultracompact, 1 A Thermoelectric Cooler (TEC) Driver for Digital Control Systems

Key Features

• Patented high efficiency single inductor architecture

• Integrated low RDSONMOSFETs for TEC driver

• TEC voltage and current operation monitoring

• No external sense resistor required

• Programmable maximum TEC voltage

• External synchronization

• Independent TEC heating and cooling current limit settings

• 2 MHz PWM switching frequency

• Digital thermal control loop compatible

• 2.50 V reference output with 1% accuracy

• Available in a 25-ball, 2.5 mm x 2.5 mm WLCSP or in a 24-lead, 4 mm x 4 mm LFCSP

Description

The ADN8833 is a monolithic H-bridge TEC driver with integrat-ed 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 passive component attached to the TEC module to the programmed target temperature.The control voltage applied to the CONT input is generated by a digital-to-analog converter (DAC) closing the digital proportional, integral, derivative (PID) loop of temperature control system.The internal 2.5 V reference voltage provides a 1% accurate output that is used to bias a voltage divider network to program the maximum TEC current and voltage limits for both the heating and cooling modes. It can also be a reference voltage for the DAC and the temperature sensing circuit, including a thermistor bridge and an analog-to-digital converter (ADC).APPLICATIONSTEC temperature controlOptical modulesOptical fiber amplifiersOptical networking systemsInstruments requiring TEC temperature control