PMP9796

5V, Low-Power TEC Driver Reference Design

PMP9796

Design files

Overview

This reference design details a power management circuit that is capable of sourcing and sinking current for driving a thermoelectric cooler (TEC) to control the temperature of sensitive devices, like laser diodes or sensors. It supports a small solution based on the integrated TPS63070 buck-boost converter, requiring only a few external components. With a simple high impedance analog voltage input to control the current flowing through the TEC, the converter can be used as a power solution for a microcontroller based temperature control system.

Features
  • Source and sink current capabilities to drive a TEC
  • Positive and negative current limit
  • Up to 2-A continuous TEC current
  • 5-V input voltage
  • Single device solution
Output voltage options PMP9796.1 PMP9796.2
Vin (Min) (V) 5 5
Vin (Max) (V) 5 5
Vout (Nom) (V) 2.5 7.5
Iout (Max) (A) 1 1
Output Power (W) 2.5 7.5
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck Boost- Integrated Switch Buck Boost- Integrated Switch

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDUCA8.PDF (175 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

TIDRNG9.PDF (198 K)

Detailed schematic diagram for design layout and components

TIDRNH0.PDF (69 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDRNH1.PDF (132 K)

Detailed overview of design layout for component placement

TIDRNH3.ZIP (357 K)

Files used for 3D models or 2D drawings of IC components

TIDCCL8.ZIP (367 K)

Design file that contains information on physical board layer of design PCB

TIDRNH2.PDF (174 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Buck-boost, inverting & split-rail converters (integrated switch)

TPS63070Wide input voltage (2V-16V) buck-boost converter

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
* Test report PMP9796 5V Low-Power TEC Driver Reference Design Sep. 06, 2016

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