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MAX256ASA+T

Power Management IC, Transformer H-Bridge Driver, 5 V, NSOIC-8

MAXIM INTEGRATED PRODUCTS MAX256ASA+T
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Manufacturer Part No:
MAX256ASA+T
Order Code:
2511379
Technical Datasheet:
MAX256ASA+T   Datasheet
See all Technical Docs

Product Overview

The MAX256ASA+T is a 3W primary-side transformer H-bridge driver for isolated supplies in 8 pin NSOIC package. The device contains an on-board oscillator, protection circuitry and internal FET drivers to provide up to 3W of power to the primary winding of a transformer. It can be operated using internal programmable oscillator or can be driven by an external clock for improved EMI performance. Regardless of the clock source being used, an internal flip-flop stage guarantees a fixed 50% duty cycle to prevent DC current flow in transformer. It includes under voltage lockout for controlled start up. The device prevents cross-conduction of H-bridge MOSFETs by implementing break before make switching. Thermal shutdown circuitry provides additional protection against damage due to over temperature conditions. It is used in isolated power supplies, isolated communications links and telecommunications.
  • Supply voltage range is 3V to 5.5V
  • Operating temperature range from -40°C to 125°C
  • Simple, flexible design provides Up to 3W to the transformer in isolated power supplies
  • Internal resistor-programmable oscillator mode
  • External clock mode with watchdog, disable mode
  • Integrated system protection, under voltage lockout
  • Maximum supply current is 3mA at MODE = VCC
  • Maximum switching frequency is 1.35MHz at MODE = VCC, RS = 10.5Kohm
  • Maximum watchdog timeout is 55µs at MODE = GND

Applications

Power Management

Product Information

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5V

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-

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-

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2

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NSOIC

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8Pins

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-40°C

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125°C

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-

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-

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MSL 1 - Unlimited
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Technical Docs (1)

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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