ADN8833
Info : RECOMMENDED FOR NEW DESIGNS
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ADN8833

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

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 4
1ku List Price Starting From $4.88
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
  • 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
Additional Details
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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).

APPLICATIONS

  • TEC temperature control
  • Optical modules
  • Optical fiber amplifiers
  • Optical networking systems
  • Instruments requiring TEC temperature control
Part Models 4
1ku List Price Starting From $4.88

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADN8833ACBZ-R2
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ADN8833ACBZ-R7
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ADN8833ACPZ-R2
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ADN8833ACPZ-R7
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Product Lifecycle

PCN

May 30, 2018

- 18_0019

Revision to Thickness of Polyimide and Redistribution Layers for ADN8833 and ADN8834 in WLCSP

Filter by Model

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Part Models

Product Lifecycle

PCN

May 30, 2018

- 18_0019

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Revision to Thickness of Polyimide and Redistribution Layers for ADN8833 and ADN8834 in WLCSP

Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADN8833

ADN8833 Evaluation Board

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EVAL-ADN8833

ADN8833 Evaluation Board

ADN8833 Evaluation Board

Features and Benefits

  • Evaluation boards for the ADN8833
  •  1.0 A TEC driver for digital control systems 
  • 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 1.85 MHz to 3.25 MHz 
  • Output for TEC module wires
  • 2.5V reference out 
  • Disable jumper
  • 40mm × 25 mm WLCSP board size
  • 45mm × 25 mm LFCSP board size

Product Detail

The ADN8833CB-EVALZ and ADN8833CP-EVALZ are configurable evaluation boards designed to work with various TEC modules. The AND8833 on the evaluation board delivers bidirectional current through TEC using two pairs of the complimentary integrated MOSFETs in an H-bridge configuration.


The voltage across the TEC is proportional to voltage of control signal applied to the CONT input pin.


With the on-board passive components, TEC cooling and heating current limits set to 1A, maximum TEC voltage is programmed to 3V. The cooling and heating TEC current limits and maximum TEC voltage setting can be modified by changing values of the corresponding components.

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