Electrical Characteristics 电气特性 (MC7915)
(VI = -23V, IO = 500mA, 0℃ ≤TJ ≤ +125℃, CI =2.2μF, CO =1μF, unless otherwise specified.)
Parameter 参数 Symbol 符号
Conditions 条件
最小.
典型.
最大.
单位
Output Voltage 输出电压
VO
TJ=+25℃
-14.4
-15
-15.6
V
IO = 5mA to 1A, PO ≤ 15W VI = -18V to -30V
-14.25
-15
-15.75
Line Regulation 线性调整率(Note1)
ΔVO
TJ=+25℃
VI = -17.5V to -30V
-
12
300
mV
VI = -20V to -26V
-
6
150
Load Regulation 负载调整率(Note1) (Note1)
ΔVO
TJ=+25℃ IO = 5mA to 1.5A
-
12
300
mV
TJ =+25℃ IO = 250mA to 750mA
-
4
150
Quiescent Current 静态电流
IQ
TJ =+25℃
-
3
6
mA
Quiescent Current Change 静态电流变化
ΔIQ
IO = 5mA to 1A
-
0.05
0.5
mA
VI = -18.5V to -30V
-
0.1
1
Temperature Coefficient of VD 温度系数
ΔVo/ΔT
IO = 5mA
-
-0.9
-
mV/℃
Output Noise Voltage 输出噪声电压
VN
f = 10Hz to 100KHz TA =+25℃
-
250
-
μV
Ripple Rejection 纹波抑制
RR
f = 120Hz ΔVI = 10V
54
60
-
dB
Dropout Voltage 电压差
VD
TJ=+25℃ IO = 1A
-
2
-
V
Short Circuit Current 短路电流
ISC
TJ =+25℃, VI = -35V
-
300
-
mA
Peak Current 峰值电流
IPK
TJ =+25℃
-
2.2
-
A
三端稳压集成电路极限参数：
| Parameter 参数 | Symbol 符号 | Value | 单位 | |
| Input Voltage输入电压 | (for VO =5V to 18V) | VI | 35 | V |
| (for VO =24V) | VI | 40 | V | |
| Thermal Resistance Junction-Cases 热阻(结到壳) (TO-220) | RθJC | 5 | ℃/W | |
| Thermal Resistance Junction-Air热阻(结到空气) (TO-220) | RθJA | 65 | ℃/W | |
| Operating Temperature Range工作温度范围 | TOPR | 0 ~ +125 | ℃ | |
| Storage Temperature Range储存温度范围 | TSTG | -65 ~ +150 | ℃ | |
图1 79XX内部电路图
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图2 外形引脚排列图管脚图 图3 79XX参照测试电路及典型电路 |
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图4 输出电压 图5 负载调节率曲线图 |
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图6 电压差曲线图 图7 静态电流曲线图
图8 短路电流曲线图
图9 与78XX系列三端稳压构成的正负对称输出电压应用电路图
图10 TO-220封装图片 |
