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UC3838AN PDF预览

UC3838AN

更新时间: 2024-09-10 21:21:35
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
11页 338K
描述
SPECIALTY ANALOG CIRCUIT, PDIP16

UC3838AN 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, DIP16,.3
针数:16Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.56
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDIP-T16
长度:19.3 mm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封装等效代码:DIP16,.3
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子类别:Other Analog ICs
最大供电电流 (Isup):8 mA表面贴装:NO
技术:BIPOLAR温度等级:COMMERCIAL
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

UC3838AN 数据手册

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ꢀꢁꢂ ꢃ ꢄ ꢃ ꢅ ꢀ ꢁꢂ ꢃꢄ ꢃꢆ  
ꢀꢁꢄ ꢃ ꢄ ꢃ ꢅ ꢀ ꢁꢄ ꢃꢄ ꢃꢆ  
SLUS221A – APRIL 2000 – REVISED MAY 2001  
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ꢁꢑ ꢉꢋ ꢐꢑ ꢎ ꢎꢊ ꢐ  
FEATURES  
DESCRIPTION  
D
Independent 1% Reference  
The UC3838 and the UC3838A family of magnetic  
amplifier controllers contains the circuitry to  
generate and amplify a low-level analog error  
signal along with a high voltage-compliant current  
source. This source provides the reset current  
necessary to enable a magnetic amplifier to  
regulate and control a power supply output in the  
range of 2 A to 20 A.  
D
Two Uncommitted, Identical Operational  
Amplifiers  
D
100-mA Reset Current Source With –120-V  
Capability  
D
5-V to 40-V Analog Operation  
5-W DIP Package  
D
The UC3838A originally was a parametric  
improvement version of the UC3838 which since  
has been used for both versions. There is no  
difference between the UC3838A and UC3838  
version.  
BLOCK DIAGRAM  
VCC 10  
11 VM  
By controlling the reset current to a magnetic  
amplifier, this device defines the amount of  
volt-seconds the magnetic amplifier blocks before  
switching to the conducting state. Magnetic  
amplifiers are ideal for post-regulators for  
multiple-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  
blocks a portion of this input waveform, allowing  
just enough to pass to provide a regulated output.  
With the UC3838/A, only the magnetic amplifier  
coil, three diodes, and an output L-C filter are  
necessary to implement a complete closed-loop  
regulator.  
2.5 V  
REFERENCE  
VREF  
9
20  
5 k  
1 k  
3.5 V  
INV. IN  
6
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  
AVAILABLE OPTIONS  
Packaged Devices  
T
A
= T  
J
SOIC Wide  
(DW)  
PDIP (N)  
PLCC (Q)  
UC2838DW  
UC2838ADW  
UC3838DW  
UC3838ADW  
UC2838N  
UC2838AN  
UC3838N  
UC3838AN  
UC2838Q  
UC2838AQ  
UC3838Q  
UC3838AQ  
–20°C to 85°C  
0°C to 70°C  
ꢋꢞ  
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1
www.ti.com  

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