Rainbow-electronics MAX13256 Bedienungsanleitung PDF herunterladen (Seite 1)

MAX13256

36V H-Bridge Transformer

Driver for Isolated Supplies

�� Maxim Integrated Products 1

General Description

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.

Benefits and Features

S Simple, Flexible Design

 8V to 36V Supply Range

 Up to 90% Efficiency

 Provides Up to 10W to the Transformer

 Undervoltage Lockout

 2.5V to 5V Compatible Logic Interface

 Internal or External Clock Source

 Adjustable Overcurrent Threshold

S Integrated System Protection

 Fault Detection and Indication

 Overcurrent Limiting

 Overtemperature Protection

S Saves Space on Board

 Small 10-Pin TDFN Package (3mm x 3mm)

Applications

Power Meters

Isolated Fieldbus Interfaces

24V PLC Supply Isolation

Medical Equipment

Motor Controls

Typical Operating Circuit

19-5847; Rev 1; 8/11

Ordering Information appears at end of data sheet.

For related parts and recommended products to use with this part, refer to: www.maxim-ic.com/MAX13256.related

E V A L U A T I O N K I T A V A I L A B L E

FAULT

1µF

0.1µF

+24V

4.6k

LIM

CLK

ST2

GND

ST1

ITH

ISOLATED

OUT

MAX13256

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

1 2 3 4 5 6 ... 16 17

Inhaltsverzeichnis

Seite 1 - Driver for Isolated Supplies

MAX1325636V H-Bridge Transformer Driver for Isolated Supplies �� Maxim Integrated Prod

Seite 2

�� Maxim Integrated Products 10MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 3

�� Maxim Integrated Products 11MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 4

�� Maxim Integrated Products 12MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 5

�� Maxim Integrated Products 13MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 6

�� Maxim Integrated Products 14MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 7

�� Maxim Integrated Products 15MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 8

�� Maxim Integrated Products 16MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 9

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licens

Seite 10

�� Maxim Integrated Products 2MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 11

�� Maxim Integrated Products 3MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 12

�� Maxim Integrated Products 4MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 13

�� Maxim Integrated Products 5MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 14

�� Maxim Integrated Products 6MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 15

�� Maxim Integrated Products 7MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 16

�� Maxim Integrated Products 8MAX1325636V H-Bridge Transformer Driver for Isolated

Seite 17

�� Maxim Integrated Products 9MAX1325636V H-Bridge Transformer Driver for Isolated

Kommentare zu diesen Handbüchern

Keine Kommentare

Rainbow-electronics MAX13256 Bedienungsanleitung Seite 1

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Software Rainbow-electronics MAX13256 herunter. Rainbow Electronics MAX13256 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Kommentare zu diesen Handbüchern

Rainbow-electronics MAX13256 Bedienungsanleitung Seite 1

Stöbern Sie online oder laden Sie Bedienungsanleitung nach Software Rainbow-electronics MAX13256 herunter. Rainbow Electronics MAX13256 User Manual Benutzerhandbuch

Inhaltsverzeichnis

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Software Rainbow-electronics MAX13256