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MAX8521ETP+..

IC, POWER DRIVER, 3~5.5V, 20TQFN

MAXIM INTEGRATED PRODUCTS MAX8521ETP+..

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Manufacturer Part No:
MAX8521ETP+..
Order Code:
1593384
Technical Datasheet:
MAX8521ETP+..   Datasheet
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Product Overview

The MAX8521ETP+ is a smallest TEC Power Driver for optical modules. The MAX8521 is designed to drive thermoelectric coolers (TECs) in space-constrained optical modules. Both devices deliver ±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 the size of external components. The MAX8521 operate from a single supply and bias the TEC between the 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 the set-point is very close to the natural operating point, requiring a small amount of heating or cooling. An analogue control signal precisely sets the TEC current.
  • Low-profile design
  • On-chip power MOSFETs
  • High-efficiency switch-mode design
  • Ripple cancellation for low noise
  • Direct current control prevents TEC current surges
  • 5% Accurate adjustable heating/cooling current limits
  • 2% Accurate TEC voltage limit
  • No dead zone or hunting at low output current
  • ITEC monitors TEC current
  • 1% Accurate voltage reference
  • Up to 1MHz switching frequency

Applications

Fibre Optics, Industrial

Product Information

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:
SFP / SFF Optical Modules

:
TQFN

:
20Pins

:
3V

:
5.5V

:
-

:
MSL 1 - Unlimited
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