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UC3838ANG4 PDF预览

UC3838ANG4

更新时间: 2024-09-10 21:22:11
品牌 Logo 应用领域
德州仪器 - TI 光电二极管
页数 文件大小 规格书
5页 270K
描述
1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP16, PLASTIC, DIP-16

UC3838ANG4 技术参数

是否Rohs认证: 符合生命周期:Obsolete
零件包装代码:DIP包装说明:DIP,
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.58可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CKTJESD-30 代码:R-PDIP-T16
JESD-609代码:e4长度:19.3 mm
信道数量:1功能数量:1
端子数量:16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:DIP封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:5.33 mm
最大供电电压 (Vsup):30 V最小供电电压 (Vsup):5 V
标称供电电压 (Vsup):20 V表面贴装:NO
温度等级:COMMERCIAL端子面层:NICKEL PALLADIUM GOLD
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 mmBase Number Matches:1

UC3838ANG4 数据手册

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UC1838A  
UC2838A  
UC3838A  
Magnetic Amplifier Controller  
FEATURES  
DESCRIPTION  
Independent 1% Reference  
The UC1838A family of magnetic amplifier controllers contains the circuitry to gen-  
erate and amplify a low-level analog error signal along with a high volt-  
age-compliant current source. This source will provide the reset current necessary  
to enable a magnetic amplifier to regulate and control a power supply output in the  
range of 2A to 20A.  
Two Uncommitted, Identical  
Operational Amplifiers  
100mA Reset Current Source  
with –120V Capability  
By controlling the reset current to a magnetic amplifier, this device will define the  
amount of volt-seconds the magnetic amplifier will block before switching to the  
conducting state. Magnetic amplifiers are ideal for post-regulators for multi-  
ple-output power supplies where each output can be independently controlled with  
efficiencies up to 99%. With a square or pulse-width-modulated input voltage, a  
magnetic amplifier will block a portion of this input waveform, allowing just enough  
to pass to provide a regulated output. With the UC1838A, only the magnetic ampli-  
fier coil, three diodes, and an output L-C filter are necessary to implement a com-  
plete closed-loop regulator.  
5V to 40V Analog Operation  
5W DIL Package  
The UC1838A contains a precision 2.5V reference, two uncommitted high-gain op  
amps and a high-gain PNP-equivalent current source which can deliver up to  
100mA of magnetic amplifier reset current and with –120 volt capability.  
These devices are available in a plastic “bat-wing” DIP for operation over a –20°C  
to +85°C temperature range and, with reduced power, in a hermetically sealed  
cerdip for –55°C to +125°C operation. Surface mount versions are also available.  
This improved “A” version replaced the non “A” version formerly introduced.  
BLOCK DIAGRAM  
VCC 10  
2.5V  
REFERENCE  
VREF  
9
11 VM  
INV. IN  
6
5k  
1k  
20  
3.5V  
E/A  
N.I. IN  
E/A OUT  
INV. IN  
7
8
3
14 RESET  
15 DR 1  
16 DR 2  
C/L  
N.I. IN  
2
1
C/L OUT  
4
5
12  
13  
GND GND GND GND  
UDG-97174  
04/99  

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