Datasheet > MAX17691B

MAX17691B

更新时间： 2023-12-20 18:45:23

品牌	Logo	应用领域
亚德诺 - ADI		转换器
页数	文件大小	规格书
34页	1155K
描述
4.2V–60V、无光耦、隔离反激转换器，集成FET

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

MAX17691B 数据手册

Click here to ask about the production status of specific part numbers.

MAX17691A/MAX17691B

4.2V–60V No-Opto Isolated

Flyback Converter with Integrated FET

General Description

Benefits and Features

Maxim's Rainier family of isolated power devices enable

cooler, smaller, and simpler power-supply solutions. The

MAX17691A/B is a high efficiency No-Opto integrated

nMOSFET flyback converter that uses fixed frequency

peak current mode control. The device senses the isolated

output voltage directly from the primary-side flyback wave-

form during secondary-side rectifier conduction. No sec-

ondary-side error amplifier and optocoupler are required

to provide an accurate, isolated, regulated output voltage,

saving up to 20% of PCB space normally required for a

traditional flyback converter.

● Reduces External Components and Total Cost

• Eliminates the Optocoupler and Secondary-Side

Error Amplifier

• Up to 20% Space Savings

• 76V, Low R

Integrated nMOSFET

DSON

• Internal Loop Compensation (MAX17691A)

• Built-In Soft-Start

● Reduces Power Dissipation

• > 90% Efficiency

• Delivers up to 7.5W Output Power

• Frequency Fold-Back Enables Enhanced Light-

Load Efficiency

The MAX17691A/B features a low R

, 76V, 170mΩ

DSON

integrated nMOSFET primary switch and is designed to

operate over a wide supply range from 4.2V to 60V. The

switching frequency of the device is programmable from

100kHz to 350kHz. An EN/UVLO feature allows the user

to turn ON/OFF the power converter precisely at the de-

sired input voltage. Input overvoltage protection can be

implemented using the OVI pin (MAX17691A only). Soft-

start limits inrush current at startup. The MAX17691A/B

supports external clock synchronization to avoid low-fre-

quency “beats” on the input bus in systems with multiple

converters. The device also has programmable frequency

dithering for low-EMI, spread-spectrum operation.

• 2.5µA Shutdown Current

● Supports Key System-Level Design Requirements

• Frequency Dithering Supports Low-EMI, Spread-

Spectrum Operation

• Switching Frequency Synchronization to External

Clock

• Compliant with CISPR22 ClassB EMI Requirements

● Operates Reliably in Adverse Environments

• Output Diode Forward Voltage Temperature

Compensation

• Hiccup Current-Limit Protection

• Programmable EN/UVLO Threshold

• Input Overvoltage (OVI) Protection (MAX17691A)

• Overtemperature Protection

• High Industrial -40°C to +125°C Ambient Operating

Temperature Range/ -40°C to +150°C Junction

Temperature Range

The MAX17691A/B allows temperature compensation for

variations in the output rectifier diode forward voltage

drop. The MAX17691A is internally compensated for loop

stability, while the MAX17691B offers external loop com-

pensation flexibility. The MAX17691A/B has robust hic-

cup-protection and thermal protection schemes, and is

available in a space-saving 12-pin, 3mm x 3mm TDFN

package with a temperature range from -40°C to +125°C.

Ordering Information appears at end of data sheet.

Applications

● Isolated Power Supplies

● PLC I/O Modules

● IGBT Gate Drive Supplies

● Industrial and Telecom Applications

19-100784; Rev 1; 2/21

12 3 4 5 6 7...34

中文翻译

下载PDF

与MAX17691B相关器件

型号	品牌	获取价格	描述	数据表
MAX17692A	ADI	获取价格	集成FET的4.2V–60V、无光耦隔离反激式转换器
MAX17692B	ADI	获取价格	集成FET的4.2V–60V、无光耦隔离反激式转换器
MAX17693A	ADI	获取价格	集成FET的4.2V–60V、无光耦隔离反激式转换器
MAX17693B	ADI	获取价格	集成FET的4.2V–60V、无光耦隔离反激式转换器
MAX176ACPA	MAXIM	获取价格	Serial-Output, 250Ksps 12-Bit ADC with T/H and Refernce
MAX176ACWE	MAXIM	获取价格	Serial-Output, 250Ksps 12-Bit ADC with T/H and Refernce
MAX176AEPA	MAXIM	获取价格	Serial-Output, 250Ksps 12-Bit ADC with T/H and Refernce
MAX176AEWE	MAXIM	获取价格	Serial-Output, 250Ksps 12-Bit ADC with T/H and Refernce
MAX176AEWE-T	MAXIM	获取价格	ADC, Successive Approximation, 12-Bit, 1 Func, 1 Channel, Serial Access, CMOS, PDSO16, SOP
MAX176AMJA	MAXIM	获取价格	Serial-Output, 250Ksps 12-Bit ADC with T/H and Refernce

与MAX17691B相关文章

REF70数据手册解读：高精度电压参考源的全面剖析
2024-07-08

3
解析30211801数据手册：PCB端子排MKDSV 5/3-9.5
2024-07-08

2
UL248-14数据手册深度解读：微型保险丝的全面剖析
2024-07-08

4
BSS138LT3G：一款高效能N沟道MOSFET的全面解析
2024-07-04

18

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX17691B

MAX17691B 数据手册

与MAX17691B相关器件

与MAX17691B相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

MAX17691B

MAX17691B 数据手册

与MAX17691B相关器件

与MAX17691B相关文章

您还可以找

您在本页遇到什么问题？