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MAX1897ETP

更新时间： 2024-11-05 23:45:55
品牌 Logo 应用领域
美信 - MAXIM 控制器
页数 文件大小 规格书
33页 1015K
描述
SMPS Controller

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中文翻译

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MAX1897ETP 技术参数

是否Rohs认证： 不符合生命周期：Obsolete
零件包装代码：QFN包装说明：5 X 5 MM, TQFN-20
针数：20Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.67其他特性：ALSO REQUIRES A BATTERY VOLTAGE OF 4V TO 28V
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：5.5 V
最小输入电压：4.5 V标称输入电压：5 V
JESD-30 代码：S-PQCC-N20JESD-609代码：e0
长度：5 mm湿度敏感等级：1
功能数量：1端子数量：20
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：VQCCN
封装等效代码：LCC20,.20SQ,25封装形状：SQUARE
封装形式：CHIP CARRIER, VERY THIN PROFILE峰值回流温度（摄氏度）：240
认证状态：Not Qualified座面最大高度：0.75 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：550 kHz
技术：BICMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn85Pb15)端子形式：NO LEAD
端子节距：0.65 mm端子位置：QUAD
处于峰值回流温度下的最长时间：20宽度：5 mm
Base Number Matches：1

MAX1897ETP 数据手册

 浏览型号MAX1897ETP的Datasheet PDF文件第2页浏览型号MAX1897ETP的Datasheet PDF文件第3页浏览型号MAX1897ETP的Datasheet PDF文件第4页浏览型号MAX1897ETP的Datasheet PDF文件第5页浏览型号MAX1897ETP的Datasheet PDF文件第6页浏览型号MAX1897ETP的Datasheet PDF文件第7页 
19-2188; Rev 1; 9/02  
Quick-PWM Slave Controllers for  
Multiphase, Step-Down Supplies  
General Description  
Features  
The MAX1887/MAX1897 step-down slave controllers are  
intended for low-voltage, high-current, multiphase DC-to-  
DC applications. The MAX1887/MAX1897 slave con-  
trollers can be combined with any of Maxim’s  
Quick-PWM™ step-down controllers to form a multiphase  
DC-to-DC converter. Existing Quick-PWM controllers,  
such as the MAX1718, function as the master controller,  
providing accurate output voltage regulation, fast tran-  
sient response, and fault protection features.  
Synchronized to the master’s low-side gate driver, the  
MAX1887/MAX1897 include the Quick-PWM constant on-  
time controller, gate drivers for a synchronous rectifier,  
active current balancing, and precision current-limit cir-  
cuitry.  
o Quick-PWM Slave Controller  
o Precise, Active Current Balance (±±1.25m ꢀ  
o Accurate, Adjustable Current-Li5it Threshold  
o Opti5ized for Low-Output moltages (≤.mꢀ  
o 4m to .8m Battery Input Range  
o Fixed 300kHz (MAX±887ꢀ or Selectable  
.00kHz/300kHz/220kHz (MAX±897ꢀ Switching  
Frequency  
o Drive Large Synchronous-Rectifier MOSFETs  
o 2.2µA (typꢀ I  
Supply Current  
CC  
o .0µA Standby Supply Current  
The MAX1887/MAX1897 provide the same high effi-  
ciency, ultra-low duty factor capability, and excellent  
transient response as other Quick-PWM controllers. The  
MAX1887/MAX1897 differentially sense the inductor  
currents of both the master and the slave across cur-  
rent-sense resistors. These differential inputs and the  
adjustable current-limit threshold derived from an exter-  
nal reference allow the slave controller to accurately  
balance the inductor currents and provide precise cur-  
rent-limit protection. The MAX1887/MAX1897’s dual-  
purpose current-limit input also allows the slave  
controller to automatically enter a low-power standby  
mode when the master controller shuts down.  
o <±µA Shutdown (MAX±897ꢀ Supply Current  
o S5all ±6-Pin QSOP (MAX±887ꢀ, Co5pact  
.0-Pin 255 x 255 QFN (MAX±897ꢀ, or  
.0-Pin 255 x 255 Thin QFN (MAX±897ꢀ  
Ordering Information  
PART  
TEMP RANGE  
PIN-PACKAGE  
MAX±887EEE -40°C to +85°C 16 QSOP  
MAX±897EGP*  
✕
-40°C to +85°C 20 QFN 5mm 5mm  
✕
MAX1897ETP -40°C to +85°C 20 Thin QFN 5mm 5mm  
The MAX1887 triggers on the rising edge of the mas-  
ter’s low-side gate driver, which staggers the on-times  
of both master and slave, providing out-of-phase oper-  
ation that can reduce the input ripple current and con-  
sequently the number of input capacitors. The  
MAX1897 features a selectable trigger polarity, allowing  
out-of-phase or simultaneous in-phase operation.  
*Contact factory for availability.  
Pin Configuration  
TOP VIEW  
20  
19 18  
17 16  
Applications  
CM+  
CM-  
TON  
LX  
1
2
3
4
5
15  
14  
13  
12  
11  
Notebook Computers  
CPU Core Supply  
DH  
Single-Stage (BATT to V  
) Converters  
CORE  
SHDN  
MAX1897  
Two-Stage (5V to V  
) Converters  
CORE  
CS-  
CS+  
V
V
CC  
DD  
Servers/Desktop Computers  
Telecom  
6
7
8
9
10  
Typical Operating Circuit appears at end of data sheet.  
THIN QFN 255 x 255  
Pin Configurations continued at end of data sheet.  
Quick-PWM is a registered trademark of Maxim Integrated  
Products, Inc.  
________________________________________________________________ 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.  
1234567...33

中文翻译

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MAX1897ETP 替代型号

型号 品牌 替代类型 描述 数据表
MAX1897ETP+ MAXIM

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