Datasheet > UC3838DWTR

UC3838DWTR

更新时间： 2024-11-04 15:55:51

品牌	Logo	应用领域
德州仪器 - TI		放大器光电二极管
页数	文件大小	规格书
6页	187K
描述
IC,MAGNETIC AMPLIFIER CONTROLLER,BIPOLAR,SOP,16PIN

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技术参数
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UC3838DWTR 技术参数

生命周期：	Obsolete	包装说明：	SOP, SOP16,.4
Reach Compliance Code：	unknown	风险等级：	5.84
JESD-30 代码：	R-PDSO-G16	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：	SOP
封装等效代码：	SOP16,.4	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	电源：	5,20 V
认证状态：	Not Qualified	子类别：	Other Analog ICs
表面贴装：	YES	技术：	BIPOLAR
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	1.27 mm	端子位置：	DUAL
Base Number Matches：	1

UC3838DWTR 数据手册

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SLUS221A – APRIL 2000 – REVISED MAY 2001

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FEATURES

DESCRIPTION

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.

Two Uncommitted, Identical Operational

Amplifiers

100-mA Reset Current Source With –120-V

Capability

5-V to 40-V Analog Operation

5-W DIP Package

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

Ω

5 k

1 k

3.5 V

INV. IN

–

E/A

N.I. IN

E/A OUT

INV. IN

14 RESET

15 DR 1

16 DR 2

–

C/L

N.I. IN

C/L OUT

GND GND GND GND

UDG-97174

AVAILABLE OPTIONS

Packaged Devices

= T

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

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www.ti.com

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与UC3838DWTR相关器件

型号	品牌	获取价格	描述	数据表
UC3838N	TI	获取价格	SPECIALTY ANALOG CIRCUIT, PDIP16, PLASTIC, DIP-16
UC3838QTR	TI	获取价格	IC,MAGNETIC AMPLIFIER CONTROLLER,BIPOLAR,LDCC,20PIN
UC383DW	TI	获取价格	UC383DW
UC383DWTR	TI	获取价格	UC383DWTR
UC383J	ETC	获取价格	Analog IC
UC383L	TI	获取价格	UC383L
UC383N	TI	获取价格	UC383N
UC383Q	TI	获取价格	UC383Q
UC383QTR	TI	获取价格	UC383QTR
UC3840	STMICROELECTRONICS	获取价格	PROGRAMMABLE, OFF-LIINE, PWM CONTROLLER

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