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Series Information for MAX13256ATB+T - Maxim Integrated


The MAX13256 H-bridge transformer driver provides a simple solution for making isolated power supplies up to 10W. The device drives a transformer’s primary coil with up to 300mA of current from a wide 8V to 36V DC sup- ply. The transformer’s secondary-to-primary winding ratio defines the output voltage, allowing selection of virtually any isolated output voltage. The device features adjustable current limiting, allowing indirect limiting of secondary-side load currents. The cur- rent limit of the MAX13256 is set by an external resistor. A FAULT output asserts when the device detects an overtem- perature or overcurrent condition. In addition, the device features a low-power mode to reduce the overall supply current to 0.65mA (typ) when the driver is not in use. The device can be operated using the internal oscillator or driven by an external clock to synchronize multiple MAX13256 devices and precisely set the switching fre- quency. Internal circuitry guarantees a fixed 50% duty cycle to prevent DC current flow through the transformer, regardless of which clock source is used. The device is available in a small 10-pin (3mm x 3mm) TDFN package and is specified over the -40NC to +125NC automotive temperature range.


IC Function:
Transformer Driver
Supply Voltage Min:
Supply Voltage Max:
IC Package Type:
No. of Pins:
Operating Temperature Min:
Operating Temperature Max:
Product Range:
Automotive Qualification Standard:
RoHS Phthalates Compliant:
To Be Advised
MSL 1 - Unlimited
No SVHC (15-Jan-2018)

Alternate Descriptions

Avnet America

Power Transformer 1:1.5 Single Prim. Single Sec. 8V to 36V Prim.

Avnet America product

Avnet Europe

Power Transformer 1:1.5 Single Prim. Single Sec. 8V to 36V Prim.

Avnet Europe product

Avnet Asia

Power Transformer 1:1.5 Single Prim. Single Sec. 8V to 36V Prim.

Avnet Asia product

Future Electronics

MAX13256 Series 36 V 850 mA SMT H-Bridge Transformer Driver - TDFN-10EP