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MAX8521ETP+T

Laser Diode Driver, Thermoelectric Cooler, 3V to 5.5V, TQFN-20

MAXIM INTEGRATED / ANALOG DEVICES MAX8521ETP+T
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Manufacturer Part No:
MAX8521ETP+T
Order Code:
2516977RL
Technical Datasheet:
MAX8521ETP+T   Datasheet
See all Technical Docs

Product Overview

The MAX8521ETP+T is a smallest TEC power driver for optical modules in 20 pin TQFN package. It is designed to drive thermo electric coolers (TECs) in space constrained optical modules. It delivers ±1.5A output current and control the TEC current to eliminate harmful current surges. On-chip FETs minimize external components and high switching frequency reduces size of external components. It operates from a single supply and bias TEC between outputs of two synchronous buck regulators. This operation allows for temperature control without 'dead zones' or other nonlinearities at low current. This arrangement ensures that the control system does not hunt when set-point is very close to natural operating point, requiring small amount of heating or cooling. An analogue control signal precisely sets TEC current.
  • Supply voltage range is 3V to 5.5V
  • Operating temperature range from -40°C to +85°C
  • Low profile design, on-chip power MOSFETs
  • High efficiency switch mode design
  • Ripple cancellation for low noise, ITEC monitors TEC current
  • Direct current control prevents TEC current surges
  • 5% accurate adjustable heating/cooling current limits
  • 2% accurate TEC voltage limit, 1% accurate voltage reference
  • No dead zone or hunting at low output current
  • Switching frequency up to 1MHz, synchronization

Applications

Power Management

Warnings

Market demand for this product has caused an extension in leadtimes. Delivery dates may fluctuate. Product exempt from discounts.

Product Information

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:
Thermoelectric Cooler

:
TQFN

:
20Pins

:
3V

:
5.5V


:
MSL 1 - Unlimited

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Technical Documents (2)

CAD Downloads

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Terms and Conditions

CAD Models - Notice
CAD Models and drawings are provided to you on a revocable limited licence for your internal use only but remain the property of the manufacturer who retain all intellectual property rights and ownership. They are provided to assist you in decision making and as design guide but are not guaranteed to be error free, accurate or up to date and is not intended to be taken as advice.
Use of these CAD models and other options provided are downloaded and used entirely at your own risk and by continuing you confirm acceptance of the above.

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