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MAX256ASA+

Power Management IC, 3 W Primary Side Transformer, H-Bridge Driver, 3.3 V or 5 V supply, SOIC-8

MAXIM INTEGRATED PRODUCTS MAX256ASA+
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Manufacturer Part No:
MAX256ASA+
Order Code:
2519288
Technical Datasheet:
MAX256ASA+   Datasheet
See all Technical Docs

Product Overview

The MAX256ASA+ is an integrated primary-side transformer H-bridge Driver for isolated power-supply circuits. 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. This can be operated using the 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 the transformer. It operates from a single-supply voltage of +5 or +3.3V and includes under voltage lockout for controlled start-up. The device prevents cross-conduction of the H-bridge MOSFETs by implementing break-before-make switching. Thermal shutdown circuitry provides additional protection against damage due to over temperature conditions.
  • Simple, flexible design provides up to 3W to transformer in isolated power supplies
  • Internal resistor-programmable oscillator mode
  • External clock mode with watchdog
  • Disable mode
  • Integrated system protection
  • Saves space on board
  • 10kR External resistance range
  • 110mV Under-voltage-lockout-threshold hysteresis
  • 1µA Input leakage current

Applications

Industrial, Communications & Networking, Power Management, Medical

Warnings

ESD sensitive device, take proper precaution while handling the device. 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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5V

:
-

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-

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2

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SOIC

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8Pins

:
-40°C

:
125°C

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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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