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EZ1900CS

更新时间: 2024-11-05 22:40:47
品牌 Logo 应用领域
商升特 - SEMTECH 模拟IC信号电路光电二极管控制器局域网
页数 文件大小 规格书
5页 98K
描述
REGULATOR BALANCE CONTROLLER

EZ1900CS 技术参数

生命周期:Obsolete零件包装代码:SOIC
包装说明:SO-8针数:8
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.84Is Samacsys:N
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDSO-G8
长度:4.9 mm功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
电源:5 V认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Power Management Circuits
最大供电电流 (Isup):5 mA标称供电电压 (Vsup):5 V
表面贴装:YES温度等级:COMMERCIAL
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

EZ1900CS 数据手册

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REGULATOR  
BALANCE CONTROLLER  
EZ1900  
May 27, 1999  
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com  
DESCRIPTION  
FEATURES  
The EZ1900 is a high performance positive load cur-  
rent balancer designed for use in applications utiliz-  
ing 2 regulators in parallel to achieve equal current  
sharing or identical current for each load. The regula-  
tor balance controller allows a flexible motherboard  
design to be made to cope with different processor  
configurations. The controller reads a logic level up-  
grade signal (denoted VCC2DET on the Intel P55C; sim-  
ilar on AMD, Cyrix and PowerPC microprocessors) to  
control the output voltage of two linear low dropout  
voltage regulators to the CPU core and I/O planes. In  
single-voltage plane configurations (VCC2DET floating),  
both regulators are set to the same output voltage  
(usually 3.3 - 3.5V) and are configured in master-  
slave mode. For split plane processors (VCC2DET low),  
the outputs of the two regulators are switched - the  
core voltage will be set to a nominal 2.5V while the  
I/O voltage will remain at 3.3V. The actual output  
voltages can be adjusted by means of resistors. The  
EZ1900 programmable current balancer is available  
in the popular SO-8 surface mount package.  
Current balance controller for regulators in parallel  
Slave and non-slave voltage modes  
Slave or non-slave mode computer selected  
Compatible with 3 or 5 pin low drop regulators  
Remote sense operation  
SO-8 package  
APPLICATIONS  
Flexible upgrade from single voltage plane to  
split-plane processors  
Intel Pentium® Processor P54CS & P55C  
upgrades  
PowerPC™ 603 & 604 upgrades  
AMD5K86™ upgrades  
ORDERING INFORMATION  
DEVICE(1)  
PACKAGE  
EZ1900CS  
SO-8  
Note:  
(1) Add suffix ‘TR’ for tape and reel.  
PIN CONFIGURATION  
ABSOLUTE MAXIMUM RATINGS  
Parameter  
Symbol Maximum Units  
Input Voltage Supply  
VIN  
7
V
V
Differential  
Amplifier  
-IN, +IN  
SOUT  
7
0 to +V  
Slave Output Current  
(sink only)  
ISLAVE  
50  
160  
mA  
°C/W  
°C  
Pin #  
Legend  
Sel  
-IN  
Description  
Non-slave mode, voltage select  
Negative error amplifier input  
Positive error amplifier input  
Power input, common  
No Connection  
1
2
3
4
5
6
7
8
Thermal Resistance  
Junction to Ambient  
θJA  
TJ  
Operating Junction  
Temperature Range  
0 to 70  
-65 to 125  
260  
+IN  
-V  
Storage  
Temperature Range  
TSTG  
°C  
nc  
Lead Temperature  
(Soldering) 5 Sec  
SOUT  
+V  
Sets VOUT of slave device  
Power input, positive  
TLEAD  
°C  
nc  
No connection  
Slave Mode Pin: For non “Computer Select Operation”, the Select  
Mode, pin #1, can be left open circuited for continuous slave mode  
operation or balance current control. Ground the Select Mode, pin #1,  
for non-slave mode operation.  
1
Pentium Processor is a trademark of Intel Corp. PowerPC is a trademark of IBM Corp. AMD5K86 is a trademark of Advanced Micro Devices.  
© 1999 SEMTECH CORP.  
652 MITCHELL ROAD NEWBURY PARK CA 91320  

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