Datasheet > 电源电路 > 电源管理电路> UC1902J

UC1902J

更新时间： 2024-11-14 13:15:07

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
6页	149K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8

阅读下载

中文翻译

获取价格

技术参数
数据手册

如果您发现信息不准确，欢迎纠错

UC1902J 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	DIP	包装说明：	DIP, DIP8,.3
针数：	8	Reach Compliance Code：	not_compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.29	可调阈值：	YES
模拟集成电路 - 其他类型：	POWER SUPPLY SUPPORT CIRCUIT	JESD-30 代码：	R-GDIP-T8
信道数量：	1	功能数量：	1
端子数量：	8	最高工作温度：	125 °C
最低工作温度：	-55 °C	封装主体材料：	CERAMIC, GLASS-SEALED
封装代码：	DIP	封装等效代码：	DIP8,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	电源：	5 V
认证状态：	Not Qualified	座面最大高度：	5.08 mm
子类别：	Power Management Circuits	最大供电电流 (Isup)：	10 mA
最大供电电压 (Vsup)：	20 V	最小供电电压 (Vsup)：	2.7 V
标称供电电压 (Vsup)：	5 V	表面贴装：	NO
技术：	BIPOLAR	温度等级：	MILITARY
端子形式：	THROUGH-HOLE	端子节距：	2.54 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	NOT SPECIFIED
宽度：	7.62 mm	Base Number Matches：	1

UC1902J 数据手册

UC1902

UC2902

UC3902

PRELIMINARY

Load Share Controller

FEATURES

DESCRIPTION

• 2.7V to 20V Operation

The UC3902 load share controller is an 8-pin device that balances the cur-

rent drawn from independent, paralleled power supplies. Load sharing is

accomplished by adjusting each supply’s output current to a level propor-

tional to the voltage on a share bus.

• 8-Pin Package

• Requires Minimum Number of

External Components

The master power supply, which is automatically designated as the supply

that regulates to the highest voltage, drives the share bus with a voltage

• Compatible with Existing Power

Supply Designs Incorporating Remote proportional to its output current. The UC3902 trims the output voltage of

Output Voltage Sensing

the other paralleled supplies so that they each support their share of the

load current. Typically, each supply is designed for the same current level

although that is not necessary for use with the UC3902. By appropriately

scaling the current sense resistor, supplies with different output current ca-

pability can be paralleled with each supply providing the same percentage

of their output current capability for a particular load.

• Differential Share Bus

• Precision Current Sense Amplifier with

Gain of 40

• UVLO (Undervoltage Lockout)

Circuitry

A differential line is used for the share bus to maximize noise immunity and

accommodate different voltage drops in each power converter’s ground re-

turn line. Trimming of each converter’s output voltage is accomplished by

injecting a small current into the output voltage sense line, which requires a

small resistance (typically 20Ω – 100Ω) to be inserted.

• User Programmable Share Loop

Compensation

BLOCK DIAGRAM

LOAD SHARE CONTROLLER

GND

VCC

BIAS

UVLO

–

SHARE DRIVE AMPLIFIER

40R

SENSE

–

SHARE+

SHARE–

CURRENT SENSE

AMPLIFIER

SHARE SENSE AMPLIFIER

–

ERROR AMPLIFIER

ADJ

35mV

–

0.6V

ADJ AMPLIFIER

COMP

–

2.3V

ADJR

UDG-99042

SLUS232 - FEBRUARY 1999

12 3 4 5 6

中文翻译

下载PDF

与UC1902J相关器件

型号	品牌	获取价格	描述	数据表
UC1903	TI	获取价格	Quad Supply and Line Monitor
UC1903_16	TI	获取价格	Quad Supply and Line Monitor
UC1903DW	ETC	获取价格	Industrial Control IC
UC1903DWTR	ETC	获取价格	Industrial Control IC
UC1903J	TI	获取价格	Quad Supply and Line Monitor
UC1903J883B	TI	获取价格	Quad Supply and Line Monitor
UC1903L	TI	获取价格	Quad Supply and Line Monitor
UC1903L883B	TI	获取价格	Quad Supply and Line Monitor
UC1903N	TI	获取价格	Quad Supply and Line Monitor
UC1903Q	ETC	获取价格	Industrial Control IC

与UC1902J相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

1
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

1
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

29
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

12

产品中心

服务支持

精选活动

关于我们

帮助中心

UC1902J

UC1902J 技术参数

UC1902J 数据手册

与UC1902J相关器件

与UC1902J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

UC1902J

UC1902J 技术参数

UC1902J 数据手册

与UC1902J相关器件

与UC1902J相关文章

您还可以找

您在本页遇到什么问题？