参数资料
型号: MC7815ECT
厂商: Fairchild Semiconductor
文件页数: 6/10页
文件大小: 0K
描述: IC REG LDO 15V 1A TO-220
产品变化通告: Heatsink Pkg Change 09/Oct/2007
标准包装: 50
稳压器拓扑结构: 正,固定式
输出电压: 15V
输入电压: 最高 35V
电压 - 压降(标准): 2V @ 1A
稳压器数量: 1
电流 - 输出: 1A
工作温度: 0°C ~ 125°C
安装类型: 通孔
封装/外壳: TO-220-3
供应商设备封装: TO-220-3
包装: 管件
MC78XXE
Input
1
0.33uF
MC78XXE
2
I Q
3
0.1uF
C O
R1
VXX
Output
I O
I O =
V XX
R 1
+ I Q
R L
Figure 9. Constant Current Regulator
Notes :
(1) To specify an output voltage. substitute voltage value for "XX." A common ground is required between the input and the
Output voltage. The input voltage must remain typically 2.0V above the output voltage even during the low point on the input
ripple voltage.
(2) C I is required if regulator is located an appreciable distance from power Supply filter.
(3) C O improves stability and transient response.
1
3
Input
MC78XXE
2
VXX
Output
Cl
0.33uF
I Q
0.1uF
Co
R1
I RI ?? 5IQ
VO = V XX (1+R 2 /R 1 )+I Q R 2
Figure 10. Circuit for Increasing Output Voltage
R2
Input
1
MC7805E
3
Output
2
Cl
0.33uF
6
_
2
0.1uF
4
LM741 3
+
10k ?
Co
I RI ?? 5IQ
VO = V XX (1+R 2 /R 1 )+I Q R 2
Figure 11. Adjustable Output Regulator (7 to 30V)
6
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