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UC3870N-1 PDF预览

UC3870N-1

更新时间: 2024-01-10 09:02:09
品牌 Logo 应用领域
其他 - ETC 开关光电二极管控制器
页数 文件大小 规格书
10页 354K
描述
Current-Mode SMPS Controller

UC3870N-1 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:DIP
包装说明:DIP, DIP18,.3针数:18
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.79
Is Samacsys:N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:24 V最小输入电压:12 V
标称输入电压:12 VJESD-30 代码:R-PDIP-T18
功能数量:1端子数量:18
最高工作温度:70 °C最低工作温度:
最大输出电流:1 A封装主体材料:PLASTIC/EPOXY
封装代码:DIP封装等效代码:DIP18,.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
子类别:Switching Regulator or Controllers表面贴装:NO
切换器配置:PUSH-PULL最大切换频率:300 kHz
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
Base Number Matches:1

UC3870N-1 数据手册

 浏览型号UC3870N-1的Datasheet PDF文件第1页浏览型号UC3870N-1的Datasheet PDF文件第2页浏览型号UC3870N-1的Datasheet PDF文件第3页浏览型号UC3870N-1的Datasheet PDF文件第5页浏览型号UC3870N-1的Datasheet PDF文件第6页浏览型号UC3870N-1的Datasheet PDF文件第7页 
UC1870 -1/ -2  
UC2870 -1/ -2  
UC3870 -1/ -2  
ELECTRICAL CHARACTERISTICS: Unless otherwise stated these specifications apply for TA = –55°C to +125°C for  
UC1870X; –25°C to +85°C for UC2870X; 0°C to +70°C for UC3870X; VCC = 12V, CT = 680pF, CCAP = 1 F; CBOOT = 0.1 F,  
TA = TJ.  
PARAMETER  
Oscillator Section  
TEST CONDITIONS  
MIN  
TYP  
MAX UNITS  
Initial Accuracy  
TA = 25°C  
85  
100  
1
115  
1.5  
kHz  
%
Voltage Stability  
VCC = 12V to 18V  
Line, Temperature  
TA = 25°C  
Total Variation  
80  
120  
2.85  
kHz  
V
Ramp Amplitude (p-p)  
Ramp Valley Voltage  
Sleep/Soft Start/Bootstrap Section  
Sleep Threshold  
2.48  
0.86  
2.7  
TA = 25°C  
0.95  
V
Measured on SS, TA = 25°C  
VSS = 2.5V  
0.25  
4
0.6  
6
0.8  
10  
V
A
SS Charge Current  
SS Discharge Current  
Bootstrap Regulation Voltage  
VSS = 2.5V  
0.5  
9.5  
6
0.8  
10.2  
7.5  
8
mA  
V
UCX870-2, Low Driver ON  
UCX870-1, Low Driver ON  
UCX870-2, VCAOUT > VCTpeak  
UCX870-1, VCAOUT > VCTpeak  
12.5  
9
9
4
V
Bootstrap Refresh Voltage  
7
V
2.7  
3.5  
V
High Side Driver Output Section  
Output High Voltage  
I
OUT = –50mA, BOOT = 23V  
21  
22.2  
1
V
V
Output Low Voltage  
IOUT = 50mA  
2.2  
500  
1.5  
IOUT = 10mA  
300  
0.9  
40  
mV  
V
Output Low (UVLO)  
Output Rise Time  
IOUT = 50mA, VCC = 0V  
COUT = 1nF  
160  
100  
ns  
ns  
Output Fall Time  
COUT = 1nF  
30  
Low Side Driver Output Section  
Output High Voltage  
Output Low Voltage  
I
OUT = –50mA, VCAP = 11V  
8.8  
9.5  
1
V
V
IOUT = 50mA  
2.2  
500  
1.5  
IOUT = 10mA  
300  
0.9  
40  
mA  
V
Output Low (UVLO)  
Output RISE/FALL Time  
Output FALL Time  
X10 Amplifier Section  
Gain  
IOUT = 50mA, VCC = 0V  
CLOAD = 1nF  
160  
100  
ns  
ns  
COUT = 1nF  
30  
VISNS VISNS = 20mV to 80mV  
TA = 25°C  
9.2  
1
10  
1.4  
3.5  
100  
10.4  
165  
V/V  
V/ s  
V/ s  
k/  
Slew Rate Rising  
Slew Rate Falling  
Input Resistance  
TA = 25°C  
2
TA = 25°C  
60  
4

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