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UC384XBN

更新时间： 2024-11-25 22:16:59
品牌 Logo 应用领域
安森美 - ONSEMI 控制器
页数 文件大小 规格书
16页 405K
描述
HIGH PERFORMANCE CURRENT MODE CONTROLLERS

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中文翻译

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UC384XBN 技术参数

生命周期：Active零件包装代码：DIP
包装说明：DIP,针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.7
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：5.1 V
最小输入电压：4.9 V标称输入电压：5 V
JESD-30 代码：R-PDIP-T8长度：9.78 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：
最大输出电流：8.8 A封装主体材料：PLASTIC/EPOXY
封装代码：DIP封装形状：RECTANGULAR
封装形式：IN-LINE认证状态：Not Qualified
座面最大高度：4.57 mm表面贴装：NO
切换器配置：SINGLE最大切换频率：500 kHz
温度等级：COMMERCIAL端子形式：THROUGH-HOLE
端子节距：2.54 mm端子位置：DUAL
宽度：7.62 mmBase Number Matches：1

UC384XBN 数据手册

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Order this document by UC3842B/D  
HIGH PERFORMANCE  
CURRENT MODE  
CONTROLLERS  
The UC3842B, UC3843B series are high performance fixed frequency  
current mode controllers. They are specifically designed for Off–Line and  
dc–to–dc converter applications offering the designer a cost–effective  
solution with minimal external components. These integrated circuits feature  
a trimmed oscillator for precise duty cycle control, a temperature  
compensated reference, high gain error amplifier, current sensing  
comparator, and a high current totem pole output ideally suited for driving a  
power MOSFET.  
N SUFFIX  
Also included are protective features consisting of input and reference  
undervoltage lockouts each with hysteresis, cycle–by–cycle current limiting,  
programmable output deadtime, and a latch for single pulse metering.  
These devices are available in an 8–pin dual–in–line and surface mount  
(SO–8) plastic package as well as the 14–pin plastic surface mount (SO–14).  
The SO–14 package has separate power and ground pins for the totem pole  
output stage.  
PLASTIC PACKAGE  
8
CASE 626  
1
D1 SUFFIX  
PLASTIC PACKAGE  
8
CASE 751  
(SO–8)  
1
The UCX842B has UVLO thresholds of 16 V (on) and 10 V (off), ideally  
suited for off–line converters. The UCX843B is tailored for lower voltage  
applications having UVLO thresholds of 8.5 V (on) and 7.6 V (off).  
D SUFFIX  
PLASTIC PACKAGE  
14  
CASE 751A  
(SO–14)  
• Trimmed Oscillator for Precise Frequency Control  
• Oscillator Frequency Guaranteed at 250 kHz  
• Current Mode Operation to 500 kHz  
1
PIN CONNECTIONS  
• Automatic Feed Forward Compensation  
• Latching PWM for Cycle–By–Cycle Current Limiting  
• Internally Trimmed Reference with Undervoltage Lockout  
• High Current Totem Pole Output  
• Undervoltage Lockout with Hysteresis  
• Low Startup and Operating Current  
1
2
3
4
8
7
6
5
Compensation  
Voltage Feedback  
Current Sense  
V
ref  
V
CC  
Output  
R /C  
Gnd  
T
T
(Top View)  
Compensation  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
V
ref  
NC  
NC  
Voltage Feedback  
V
V
CC  
NC  
Current Sense  
NC  
C
Output  
Gnd  
Simplified Block Diagram  
8
R /C  
Power Ground  
T
T
V
7(12)  
CC  
(Top View)  
V
V
CC  
ref  
5.0V  
Reference  
Undervoltage  
Lockout  
8(14)  
ORDERING INFORMATION  
Operating  
R
R
V
ref  
V
C
Undervoltage  
Lockout  
Device  
Package  
Temperature Range  
7(11)  
UC384XBD  
UC384XBD1  
UC384XBN  
UC284XBD  
UC284XBD1  
UC284XBN  
UC384XBVD  
UC384XBVD1  
UC384XBVN  
SO–14  
SO–8  
Plastic  
SO–14  
SO–8  
R
/C  
Output  
T
T
T
= 0° to +70°C  
A
Oscillator  
6(10)  
4(7)  
Latching  
PWM  
Power  
Ground  
5(8)  
Voltage  
Feedback  
Input  
+
–
T
= – 25° to +85°C  
= –40° to +105°C  
A
Plastic  
SO–14  
SO–8  
2(3)  
Error  
Amplifier  
Current  
Sense  
Input  
Output  
Compensation  
1(1)  
3(5)  
T
A
Plastic  
Gnd  
5(9)  
X indicates either a 2 or 3 to define specific device part  
numbers.  
Pin numbers in parenthesis are for the D suffix SO–14 package.  
Motorola, Inc. 1996  
Rev 1  
1234567...16

中文翻译

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