Datasheet > MAX13253

MAX13253

更新时间： 2024-10-03 12:26:23

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
14页	1966K
描述
1A, Spread-Spectrum, Push-Pull, Transformer Driver for Isolated Power Supplies

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MAX13253 数据手册

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MAX13253

1A, Spread-Spectrum, Push-Pull, Transformer

Driver for Isolated Power Supplies

General Description

Features and Beneﬁts

●ꢀ Simple, Flexible Design

The MAX13253 is a 1A, push-pull, transformer driver

designed to provide a simple solution for low-EMI isolated

power supplies. The MAX13253 has an internal oscillator

and operates from a single +3.0V to +5.5V supply. The

transformer’s secondary-to-primary winding ratio defines

the output voltage, allowing selection of virtually any iso-

lated output voltage with galvanic isolation.

•ꢀ +3.0V to +5.5V Supply Range

•ꢀ Low R ꢀ300mΩꢀ(max)ꢀatꢀ4.5V

•ꢀ Up to 90% Efficiency

•ꢀ Provides Up to 1A to the Transformer

•ꢀ Internal or External Clock Source

•ꢀ Internal Oscillator Frequency: 250kHz or 600kHz

•ꢀ Optional Spread-Spectrum Oscillation

The MAX13253 features an integrated oscillator driving

a pair of n-channel power switches. The driver includes

pin-selectable spread-spectrum oscillation and a well-

controlled slew rate to reduce EMI. The MAX13253 can

optionally be driven by an external clock to further man-

age EMI. Internal circuitry guarantees a fixed 50% duty

cycle to prevent DC current flow through the transformer,

regardless of which clock source is used.

•ꢀ -40ºC to +125ºC Temperature Range

●ꢀ Integrated System Protection

•ꢀ Fault Detection and Indication

•ꢀ Overcurrent Limiting

•ꢀ Undervoltage Lockout

•ꢀ Thermal Shutdown

The MAX13253 operates with up to 1A of continuous

current and features integrated protection including fault

detection, overcurrent protection, and thermal shutdown.

●ꢀ Saves Space on Board

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

The MAX13253 includes a low-current shutdown mode to

reduce the overall supply current to less than 5µA (max)

when the driver is disabled.

Applications

●ꢀ PowerꢀMeterꢀDataꢀInterface

●ꢀ IsolatedꢀFieldbusꢀInterface

●ꢀ MedicalꢀEquipment

●ꢀ IsolatedꢀAnalogꢀFront-End

●ꢀ IsolatedꢀUSBꢀPower

The MAX13253 is available in a small 10-pin (3mm x

3mm) TDFN package and is specified over the -40°C to

+125°C temperature range.

Ordering Information appears at end of data sheet.

Typical Operating Circuit

1µF

HICLK

SPRD

1CT:1.3CT

ISOLATED

1µF

FAULT

OUT

MAX13253

10µF

CLK

GND

PGND

For related parts and recommended products to use with this part, refer to www.maximintegrated.com/MAX13253.related.

19-6600; Rev 1; 4/13

12 3 4 5 6 7...14

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与MAX13253相关器件

型号	品牌	获取价格	描述	数据表
MAX13253ATB+	MAXIM	获取价格	1A, Spread-Spectrum, Push-Pull, Transformer Driver for Isolated Power Supplies
MAX13256	MAXIM	获取价格	36V H-Bridge Transformer Driver for Isolated Supplies Integrated System Protection
MAX13256	ADI	获取价格	36V H桥变压器驱动器，用于隔离电源设计
MAX13256ATB	MAXIM	获取价格	36V H-Bridge Transformer Driver for Isolated Supplies Integrated System Protection
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

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