Electrical Characteristics 电气特性 (MC7805/LM7805)
(Refer to test circuit参照测试电路 ,
Parameter参数 | Symbol 符号 | Conditions条件 | MC7805/LM7805 | 单位 | |||
| 最小 | 典型 | 最大 | |||||
| Output Voltage 输出电压 | VO | TJ =+25 oC | 4.8 | 5.0 | 5.2 | V | |
| 5.0mA ≤ Io ≤ 1.0A, PO ≤ 15W VI = 7V to 20V | 4.75 | 5.0 | 5.25 | ||||
| Line Regulation 线性调整率(Note1) | Regline | TJ=+25 oC | VO =7V to 25V | - | 4.0 | 100 | mV |
| VI =8V to 12V | - | 1.6 | 50 | ||||
| Load Regulation 负载调整率(Note1) | Regload | TJ=+25℃ | IO =5.0mA to1.5A | - | 9 | 100 | mV |
| IO =250mA to 750mA | - | 4 | 50 | ||||
| Quiescent Current 静态电流 | IQ | TJ =+25℃ | - | 5.0 | 8.0 | mA | |
| Quiescent Current 静态电流变化 | ΔIQ | IO =5mA to 1.0A | - | 0.03 | 0.5 | mA | |
| VI=7V to 25V | - | 0.3 | 1.3 | ||||
| Output Voltage 输出电压 Drift | ΔVO/ΔT | IO=5mA | - | -0.8 | - | mV/℃ | |
| Output Noise Voltage 输出噪声电压 | VN | f =10Hz to 100KHz, TA=+25℃ | - | 42 | - | μV/Vo | |
| Ripple Rejection 纹波抑制 | RR | f =120Hz VO =8V to 18V | 62 | 73 | - | dB | |
| Dropout Voltage 电压差 | VDrop | IO =1A, TJ =+25℃ | - | 2 | - | V | |
| Output Resistance输出电阻 | rO | f =1KHz | - | 15 | - | mΩ | |
| Short Circuit Current 短路电流 | ISC | VI =35V, TA =+25℃ | - | 230 | - | 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 78XX内部电路图 | |||
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图9 D-PAK封装图 | |||
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