电气石陶瓷球
Parameter 参数 | Symbol 符号 | Conditions 条件 | MC7809 LM7809 | 单位 | 粉底的原料最小 | 典型 | 最大 | | | VO | TJ =+25℃ | 8.65 | 9 | 9.35 | V | 5.0mA≤ IO ≤1.0A, PO ≤15W VI=11.5V to 24V | 8.6 | 9 | 9.4 | Line Regulation 线性调整率 (Note1) | Regline | TJ=+25℃ | VI =11.5V to 25V | - | 6 | 180 | mV | VI =12V to 17V 挂马检测 | - | 2 | 90 | Load Regulation 负载调整率 (Note1) | Regload | TJ=+25℃ | IO =5mA to 1.5A | - | 12 | 180 | mV | IO =250mA to 750mA | - | 4 | 90 | | IQ | TJ=+25℃ | - | 5.0 | 8.0 | mA | Quiescent Current Change 静态电流变化 | ΔIQ | IO =5mA to 1.0A | 电磁炮制作 - | - | 0.5 | mA | VI =11.5V to 26V | - | - | 1.3 | Output Voltage Drift 输出电压漂移 | ΔVO/ΔT | IO =5mA | - | -1 | - | mV/ ℃ | Output Noise Voltage 输出噪声电压 | VN | f =10Hz to 100KHz, TA =+25 ℃ | - | 58 | - | μV/Vo | Ripple Rejection 纹波抑制 | RR | f =120Hz VI =13V to 23V | 56 | 71 | - | dB | Dropout Voltage 电压差 | VDrop | IO =1A, TJ=+25℃ | - | 2 | - | V | Output Resistance 输出电阻 | rO | f =1KHz | - | 17 | - | mΩ | Short Circuit Current 短路电流 | ISC | VI=35V, TA =+25℃ | - | 250 | - | mA | | | | | | | | |
7809参数及应用电路 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 | 三丝光棉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 | 直升机模型制作℃ | | | | | |
应用电路： Description. Here is the circuit diagram of 9 V regulator using popular 7809 IC. The 7809 is a 9 Volt voltage regulator IC with features such as internal current limit, safe area protection, thermal protection etc. A 16 V transformer brings down the 230V mains, 1A bridge rectifier rectifies it and capacitor C1 filters it and 7809 regulates it to produce a steady9V DC? output. Circuit diagram with Parts list.? Notes.? If a current of 300 mA or above is required, fit a proper heat sink to the IC 7809.If 1A bridge is not available, make one using four 1N 4007 diodes. |
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