Datasheet > MAX8540EEE-T

MAX8540EEE-T

更新时间： 2024-10-01 21:18:43

品牌	Logo	应用领域
美信 - MAXIM		信息通信管理开关光电二极管
页数	文件大小	规格书
16页	284K
描述
Switching Controller, Voltage-mode, 1000kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH, 0.025 INCH PITCH, MO-137AB, QSOP-16

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MAX8540EEE-T 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	SSOP
包装说明：	SSOP,	针数：	16
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	18 V
最小输入电压：	7.6 V	标称输入电压：	12 V
JESD-30 代码：	R-PDSO-G16	JESD-609代码：	e0
长度：	4.89 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	16
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SSOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE, SHRINK PITCH
峰值回流温度（摄氏度）：	240	认证状态：	Not Qualified
座面最大高度：	1.75 mm	表面贴装：	YES
切换器配置：	BOOST	最大切换频率：	1000 kHz
技术：	BICMOS	温度等级：	INDUSTRIAL
端子面层：	TIN LEAD	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	3.9 mm
Base Number Matches：	1

MAX8540EEE-T 数据手册

19-2830; Rev 0; 4/03

Synchronizable, High-Frequency Current- and

Voltage-Mode PWM Controllers for Isolated Supplies

General Description

Features

ꢀ 200kHz to 1MHz Adjustable Switching Frequency

ꢀ Synchronization to External Clock

The MAX8540/MAX8541 pulse-width-modulated (PWM)

controllers for forward/flyback isolated DC-to-DC convert-

ers provide maximum flexibility to power-supply design-

ers and reduce external component count. These

controllers allow common PC board layout for current-

mode (MAX8540) and voltage-mode (MAX8541) designs.

ꢀ Programmable, Constant Maximum Volt-Second

Simplifies Transformer Design

ꢀ Programmable Hiccup/Skip Cycles or Latch-Mode

Both controllers feature adjustable switching frequency

and external synchronization from 200kHz to 1MHz.

Active-high and active-low enable, undervoltage pro-

tection (UVP), and overvoltage protection (OVP) reduce

external component count.

Protection

ꢀ Clean Startups with High-Capacitance Loads

ꢀ Programmable Under/Overvoltage Protection

ꢀ Current-Mode, Adjustable Slope Compensation

Maximum duty cycle is adjustable, and the feed-forward

function scales the maximum duty cycle with input volt-

age to limit the maximum volt-seconds applied to the

transformer primary. The MAX8540 allows the user to

select the value of slope compensation to further opti-

mize magnetics design. The MAX8541 features user-

adjustable ramp magnitude for the PWM comparator.

(MAX8540)

ꢀ Voltage-Mode, Adjustable Ramp Magnitude

(MAX8541)

ꢀ 10mA, 5V Regulator

ꢀ 75mV to 1.25mV Adjustable Current Limit

A cycle-by-cycle current-limit function controls the peak

primary current during overload and short circuit. Both

controllers can be set to latch off or to hiccup when a

short circuit is detected. The number of current-limited

cycles to initiate the hiccup mode and number of

cycles skipped are user selectable to allow startup with

high-capacitance loads and protect the converter

against sustained short circuits.

Reduces External Components

ꢀ Internal Gate Driver for Low-Power Applications

ꢀ External Gate Driver for High-Power Applications

Ordering Information

The MAX8540/MAX8541 feature 9Ω internal gate dri-

vers for low-power applications and are compatible

with external gate drivers for high-power applications.

Both devices are available in the space-saving 16-pin

QSOP package.

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

16 QSOP

MAX8540EEE

MAX8541EEE

16 QSOP

The MAX8541 EV kit evaluates the MAX8540 and the

MAX8541 to speed designs. Design examples are also

available in application notes: 50W Voltage-Mode

Forward Converter Design with the MAX8541 and 50W

Current-Mode Forward Converter Design with the

MAX8540.

Pin Configurations

TOP VIEW

REF

16 V

Applications

15 DRV

Isolated DC-to-DC Modules (Bricks)

14 GND

13 SKTON

12 CS

Cellular Base Stations

MAX8540EEE

FREQ/SYNC

Telecom and Network Systems

High-Performance Off-Line AC/DC Converters

MAXDTY

11 SKTOFF

10 ILIM

SCOMP

OPTO

QSOP

Functional Diagrams and Typical Operating Circuit appear

at end of data sheet.

Pin Configurations continued at end of data sheet.

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...16

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与MAX8540EEE-T相关器件

型号	品牌	获取价格	描述	数据表
MAX8540-MAX8541	MAXIM	获取价格	Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supp
MAX8541	MAXIM	获取价格	Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supp
MAX8541EEE	MAXIM	获取价格	Synchronizable, High-Frequency Current- and Voltage-Mode PWM Controllers for Isolated Supp
MAX8543	MAXIM	获取价格	Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8543EEE	MAXIM	获取价格	Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8543EEE+T	MAXIM	获取价格	Switching Controller, Current-mode, 1200kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH
MAX8543EEE-T	MAXIM	获取价格	Switching Controller, Current-mode, 1200kHz Switching Freq-Max, BICMOS, PDSO16, 0.150 INCH
MAX8543-MAX8544	MAXIM	获取价格	Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8544	MAXIM	获取价格	Step-Down Controllers with Prebias Startup, Lossless Sensing, Synchronization, and OVP
MAX8544	ADI	获取价格	降压型控制器，具有预偏置启动、无损检测、同步整流和OVP

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