Datasheet > MAX13256ATB

MAX13256ATB

更新时间： 2024-10-03 11:18:39

品牌	Logo	应用领域
美信 - MAXIM		变压器驱动器
页数	文件大小	规格书
17页	1785K
描述
36V H-Bridge Transformer Driver for Isolated Supplies Integrated System Protection

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MAX13256ATB 数据手册

19-5847; Rev 0; 6/11

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

MAX13256

36V H-Bridge Transformer

Driver for Isolated Supplies

General Description

Benefits and Features

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.

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

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.

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)

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.

Applications

Power Meters

Isolated Fieldbus Interfaces

24V PLC Supply Isolation

Medical Equipment

Motor Controls

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.

Ordering Information appears at end of data sheet.

Typical Operating Circuit

+24V

1µF

4.6kI

FAULT

ST1

ST2

MAX13256

CLK

ISOLATED

0.1µF

ITH

OUT

LIM

GND

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

�� Maxim Integrated Products

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.

12 3 4 5 6 7...17

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与MAX13256ATB相关器件

型号	品牌	获取价格	描述	数据表
MAX13256ATB+	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO10, 3 X 3 MM, ROHS COMPLIANT, TDFN-10
MAX13256ATB+T	MAXIM	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO10, 3 X 3 MM, ROHS COMPLIANT, TDFN-10
MAX1325ECM	MAXIM	获取价格	8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with 10V, 5V, and 0 to +5V Analog Inpu
MAX1325ECM+	MAXIM	获取价格	ADC, Proprietary Method, 14-Bit, 1 Func, 4 Channel, Parallel, Word Access, BICMOS, PQFP48,
MAX1326	MAXIM	获取价格	8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with 10V, 5V, and 0 to +5V Analog Inpu
MAX1326	ADI	获取价格	8/4/2通道、14位、同时采样ADC，提供±10V、±5V或0至+5V模拟输入范围
MAX1326ECM	MAXIM	获取价格	8-/4-/2-Channel, 14-Bit, Simultaneous-Sampling ADCs with 10V, 5V, and 0 to +5V Analog Inpu
MAX1326ECM+	MAXIM	获取价格	ADC, Proprietary Method, 14-Bit, 1 Func, 2 Channel, Parallel, Word Access, BICMOS, PQFP48,
MAX1327	MAXIM	获取价格	526ksps, Single-Channel, 14-Bit, Parallel-Interface ADCs
MAX1327ECM	MAXIM	获取价格	526ksps, Single-Channel, 14-Bit, Parallel-Interface ADCs

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