Datasheet > MAX1875AEEG-T

MAX1875AEEG-T

更新时间： 2024-02-10 05:48:48

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
22页	419K
描述
Dual Switching Controller, Voltage-mode, 660kHz Switching Freq-Max, BICMOS, PDSO24, 0.150 INCH, 0.25 INCH PITCH, MO-137AE, QSOP-24

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MAX1875AEEG-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：	24
Reach Compliance Code：	compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.81
模拟集成电路 - 其他类型：	DUAL SWITCHING CONTROLLER	控制模式：	VOLTAGE-MODE
控制技术：	PULSE WIDTH MODULATION	最大输入电压：	5.5 V
最小输入电压：	4.5 V	标称输入电压：	5 V
JESD-30 代码：	R-PDSO-G24	JESD-609代码：	e0
长度：	8.65 mm	湿度敏感等级：	1
功能数量：	2	端子数量：	24
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）：	245	认证状态：	Not Qualified
座面最大高度：	1.73 mm	表面贴装：	YES
切换器配置：	PUSH-PULL	最大切换频率：	660 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

MAX1875AEEG-T 数据手册

19-2966; Rev 0; 10/03

Dual 180° Out-of-Phase Buck Controllers with

Sequencing/Prebias Startup and POR

General Description

Features

The MAX1858A/MAX1875A/MAX1876A dual, synchro-

nized, step-down controllers generate two outputs from

input supplies ranging from 4.5V to 23V. Each output is

adjustable from sub-1V to 18V and supports loads of 10A

or higher. Input voltage ripple and total RMS input ripple

current are reduced by synchronized 180° out-of-phase

operation.

♦ 4.5V to 23V Input Supply Range

♦ 0 to 18V Output Voltage Range (Up to 10A)

♦ Adjustable Lossless Foldback Current Limit

♦ Adjustable 100kHz to 600kHz Switching

Frequency

The switching frequency is adjustable from 100kHz to

600kHz with an external resistor. Alternatively, the con-

troller can be synchronized to an external clock gener-

ated by another MAX1858A/MAX1875A/MAX1876A or a

system clock. One MAX1858A/MAX1875A/MAX1876A

can be set to generate an in-phase, or 90° out-of-

phase, clock signal for synchronization with additional

controllers. This allows two controllers to operate either

as an interleaved two- or four-phase system with each

output shifted by 90°. The MAX1858A/MAX1875A/

MAX1876A feature soft-start. The MAX1858A also fea-

tures first-on/last-off power sequencing and soft-stop.

♦ Optional Synchronization

♦ Clock Output for Master/Slave Synchronization

♦ 4 x 90° Out-of-Phase Step-Down Converters

(Using Two Controllers, Figure 7)

♦ Prebias Startup (MAX1875A/MAX1876A)

♦ Power Sequencing (MAX1858A)

♦ RST Output with 140ms Minimum Delay

(MAX1858A/MAX1876A)

♦ Fixed-Frequency Pulse-Width Modulation (PWM)

The MAX1858A/MAX1875A/MAX1876A eliminate the

need for current-sense resistors by utilizing the low-side

MOSFET’s on-resistance as a current-sense element.

This protects the DC-DC components from damage dur-

ing output-overload conditions or output short-circuit

faults without requiring a current-sense resistor.

Adjustable foldback current limit reduces power dissipa-

tion during short-circuit conditions. The MAX1858A/

MAX1876A include a power-on reset (POR) output to sig-

nal the system when both outputs reach regulation.

Operation

Ordering Information

PART

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

24 QSOP

MAX1858AEEG

MAX1875AEEG

MAX1876AEEG

24 QSOP

The MAX1858A/MAX1875A/MAX1876A ensure that the

output voltage does not swing negative when the input

power is removed or when EN is driven low. The

MAX1875A/MAX1876A also allow prebias startup with-

out discharging the output.

Pin Configuration

TOP VIEW

COMP2

24 EN

The MAX1858A/MAX1875A/MAX1876A are available in a

24-pin QSOP package. Use the MAX1875 evaluation kit

or the MAX1858 evaluation kit to evaluate the

MAX1858A/MAX1875A/MAX1876A.

FB2

ILIM2

OSC

V+

23 DH2

LX2

21 BST2

20 DL2

Applications

MAX1858A

MAX1875A

MAX1876A

REF

19 V

Network Power Supplies

GND

CKO

SYNC

18 PGND

17 DL1

Telecom Power Supplies

DSP, ASIC, and FPGA Power Supplies

Set-Top Boxes

16 BST1

ILIM1 10

FB1 11

LX1

Broadband Routers

Servers

DH1

COMP1 12

13 RST (N.C.)

() ARE FOR THE MAX1875A ONLY

Desknote Computers

QSOP

________________________________________________________________ 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...22

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与MAX1875AEEG-T相关器件

型号	品牌	获取价格	描述	数据表
MAX1875EEG	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1875EEG+	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.05A, 600kHz Switching Freq-Max, BICMOS, PDSO24,
MAX1875EEG+T	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.05A, 600kHz Switching Freq-Max, BICMOS, PDSO24,
MAX1875EEG-T	MAXIM	获取价格	Dual Switching Controller, Voltage-mode, 0.05A, 600kHz Switching Freq-Max, BICMOS, PDSO24,
MAX1875EVKIT	MAXIM	获取价格	Evaluation Kit for the MAX1875/MAX1876/MAX1858
MAX1875-MAX1876	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1876	MAXIM	获取价格	Dual 180∑ Out-of-Phase PWM Step- Down Control
MAX1876	ADI	获取价格	双路、180°异相、PWM降压型控制器，带有POR
MAX1876A	ADI	获取价格	双路、180°异相工作的buck控制器，具有排序/预偏置启动和POR
MAX1876AEEG	MAXIM	获取价格	Dual 180∑ Out-of-Phase Buck Controllers with

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