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MAX13256ATB+T

Transformer Driver, 8 V to 36 V in, TDFN-10

MAXIM INTEGRATED PRODUCTS MAX13256ATB+T
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Manufacturer Part No:
MAX13256ATB+T
Order Code:
2514282
Technical Datasheet:
MAX13256ATB+T   Datasheet
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Product Overview

The MAX13256ATB+T is a 36V H-bridge transformer driver for isolated supplies in 10 pin TDFN package. It provides simple solution for making isolated power supplies up to 10W. The device drives transformer's primary coil with up to 300mA of current from wide 8V to 36V DC supply. The transformer's secondary to primary winding ratio defines output voltage allowing selection of virtually any isolated output voltage. The current limit of MAX13256 is set by an external resistor. A active-low FAULT output asserts when device detects an overtemperature or overcurrent condition. The device can be operated using internal oscillator or driven by an external clock to synchronize multiple MAX13256 devices and precisely set the switching frequency. Internal circuitry provides fixed 50% duty cycle to prevent DC current flow through transformer regardless of which clock source is used. It is used in power meters, isolated fieldbus interfaces and 24V PLC supply isolation.
  • Supply current of 6mA an disable supply current of 0.65mA
  • Automotive temperature range from -40°C to 125°C
  • Switching frequency of 425KHz and watchdog timeout of 32µs
  • Simple, flexible design saves board space
  • Adjustable current limiting allows indirect limiting of secondary side load currents
  • Driver output resistance of 1ohm at ST1 = ST2 = high, IST1, ST2 = +300mA, RLIM = 1000 ohm
  • 2.5V to 5V compatible logic interface and up to 90% efficiency
  • Internal or external clock source, adjustable overcurrent threshold
  • Integrated system protection and undervoltage lockout
  • Overcurrent limiting, overtemperature protection, fault detection and indication
  • 24V PLC Supply Isolation; Isolated Fieldbus Interfaces; Medical Equipment; Motor Controls; Power Meters

Applications

Motor Drive & Control, Medical

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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:
Transformer Driver

:
8V

:
36V

:
TDFN

:
10Pins

:
-40°C

:
125°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (1)

CAD Downloads

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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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