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UC3870N-1 PDF预览

UC3870N-1

更新时间: 2024-02-22 16:01:14
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4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  
ORDERING INFORMATION  
UVLO Turn  
On/Off  
Threshold  
Temperature  
Range  
UC 870  
Package  
1: 4.5V/4.4V  
2: 10V/9V  
J: Ceramic DIL-18  
N: Plastic DIL-18  
DW: SOIC-18  
1: –55°C to +125°C  
2: –40°C to +85°C  
3: 0°C to +70°C  
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  
Overall Section  
TEST CONDITIONS  
MIN  
TYP  
MAX UNITS  
Supply Current, Sleep  
Supply Current, Operating  
VCC Turn-on Threshold  
SOFTSTART=0V; TA = 25°C  
30  
8.5  
10  
4.5  
9
75  
12  
A
mA  
V
UCX870-2  
UCX870-1  
UCX870-2  
UCX870-1  
10.5  
4.8  
V
VCC Turn-off Threshold  
8.2  
4.1  
V
4.4  
V
Voltage Amplifier Section  
Input Voltage Offset  
VSNS Bias Current  
TA = 25°C  
–30  
–500  
400  
0
30  
mV  
nA  
25  
500  
Transconductance  
ICOMP = +10 A to –10 A; UC3870 -1, -2;  
UC2870 -1, -2;  
675  
1000  
Mho  
ICOMP = +5 A to –5 A; UC1870 -1, -2  
250  
2.8  
675  
3.1  
0.15  
35  
1250  
3.25  
1
Mho  
V
VOUT High  
VOUT Low  
V
Output Source Current  
VOUT = 1V; UC3870 -1, -2; UC2870 -1, -2;  
VOUT = 1V; UC1870 -1, -2  
10  
5
A
35  
A
Current Amplifier Section  
Input Offset Voltage  
Input Bias Current(sense)  
Open Loop Gain  
V
COMP = 2.5V  
–6  
–500  
80  
0
6
mV  
nA  
dB  
V
VCM = 2.5V  
500  
VCM = 2.5V, VOUT = 1V to 3.5V  
RCAOUT = 100k to GND, TA = 25°C  
RCAOUT = 100k to VREF, TA = 25°C  
VOUT = 0V, TA = 25°C  
110  
3.7  
0.7  
100  
90  
VOUT High  
3.6  
VOUT Low  
0.86  
120  
V
Output Source Current  
Common Mode REJ Ratio  
Gain Bandwidth Product  
Reference Section  
Output Voltage  
80  
70  
2
A
VCM = 2V to 3V  
dB  
MHz  
FIN = 100kHz, 10mV p-p  
3.5  
I
REF = 0mA, TA = 25°C  
2.462  
2.437  
2.5  
2.5  
2
2.538  
2.563  
15  
V
IREF = 0mA  
V
Load Regulation  
Line Regulation  
IREF = 0mA to 5mA  
VCC = 12V to 24V  
VREF = 0V  
mV  
mV  
mA  
2
15  
Short Circuit Current  
10  
20  
25  
3

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