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KA3502 PDF预览

KA3502

更新时间: 2024-09-29 22:47:43
品牌 Logo 应用领域
飞兆/仙童 - FAIRCHILD 开关监控PC
页数 文件大小 规格书
14页 91K
描述
PC SMPS Supervisory IC

KA3502 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, DIP20(UNSPEC)
针数:20Reach Compliance Code:unknown
HTS代码:8542.39.00.01风险等级:5.92
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PDIP-T20
JESD-609代码:e0长度:26.4 mm
功能数量:1端子数量:20
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:DIP20(UNSPEC)封装形状:RECTANGULAR
封装形式:IN-LINE峰值回流温度(摄氏度):NOT SPECIFIED
电源:18 V认证状态:Not Qualified
座面最大高度:3.76 mm子类别:Power Management Circuits
最大供电电压 (Vsup):24 V最小供电电压 (Vsup):15 V
标称供电电压 (Vsup):18 V表面贴装:NO
技术:BIPOLAR温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn/Pb)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

KA3502 数据手册

 浏览型号KA3502的Datasheet PDF文件第2页浏览型号KA3502的Datasheet PDF文件第3页浏览型号KA3502的Datasheet PDF文件第4页浏览型号KA3502的Datasheet PDF文件第5页浏览型号KA3502的Datasheet PDF文件第6页浏览型号KA3502的Datasheet PDF文件第7页 
www.fairchildsemi.com  
KA3502  
PC SMPS Supervisory IC  
Features  
Descriptions  
• Complete Housekeeping Circuit  
• Few External Components  
• Over Voltage Protection for 3.3V/5V/12V/Adj. Output  
• Over Current Protection for 3.3V/5V/12V Output  
• Open-Collector Output and Remote On/Off Function  
• Remote On/Off Delay Time Control  
The KA3502 is complete housekeeping circuitry for use in  
the secondary side of SMPS(Switched Mode Power Supply).  
It contains various functions, which are two Precision Volt-  
age References, Over Voltage/Current Protection, Remote  
On/Off Control, Power Good Signal Generator, Disable  
Logic and etc.  
• Precision Voltage Reference for Outputs, 5V/12V  
• Uncommitment Precision Voltage Reference for +5Vs  
• Power Good Signal Generator with Hysteresis  
• Disable Logic of 3.3V, 5V, 12V for Complete Shutdown  
20-DIP  
1
Internal Block Diagram  
V33  
1
V5 V12  
PWM FB1 VREF1 UV  
VCC  
5
2
3
6
15  
14  
11  
Vcc  
Adj  
+
+
+
+
-
4
Ichg  
R8  
1k  
R10  
39k  
R15  
5.1k  
COMP1  
1.26V  
9
Ion  
R13  
5.2V  
R9  
10k  
PG  
+
-
Vcc  
COMP7  
Q3  
COMP9  
1.3V  
+
Vcc  
Tsur  
IS5  
17  
19  
S
R
-
2V  
Vcc  
Q
2.7V  
Q1  
Vcc  
Q2  
Vcc  
REFERENCE1  
+
-
+
-
+
-
-
+
50mV  
COMP2  
Vcc  
COMP5  
Vcc  
COMP8  
Vcc  
R11  
5.4k  
12  
2V  
2.8V  
IS33  
IS12  
20  
18  
+
FB2  
+
R12  
1.28V  
1.24V  
-
-
+
-
+
-
COMP3  
Vcc  
135mV  
R14  
2V0.7V  
Ion+  
Ioff  
13  
COMP6  
REFERENCE2  
+
-
VREF2  
1.4V  
-
+
COMP4  
65mV  
R7  
7
8
16  
10  
Topr  
GND  
Trem  
REM  
Rev. 5.0  
©2000 Fairchild Semiconductor International  

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