Electrical Characteristics 电气特性 (MC7824)LM7824
(参照测试电路 ,0°C < TJ < 125°C, IO =500mA, VI =33V, CI=ìF, CO=ìF, 除非另有说明)
Parameter 参数 Symbol Conditions 条件 符号 TJ =+25℃ MC7824 LM7824 单位? 最小 典型 最大 ? 23 24 25 24 17 480 6 240 V mV Output Voltage 输出VO 电压 ≤ IO ≤ 1.0A, PO ≤ 15W VI =27V to 38V VI =27V to 38V - Line Regulation 线Regline TJ =+25℃ 性调整率 (Note1) VI =30V to 36V - Load Regulation 负Regload TJ =+25℃ IO =250mA to 载调整率 (Note1) - 750mA Quiescent 静态电流 Current IQ TJ =+25℃ IO =5mA to 1.0A VI =27V to 38V - - - - IO =5mA to 1.5A - 15 480 60 240 mV 1 - - mA Quiescent Current ΔIQ Change 静态电流变化 mA mV/℃ μV/Vo Output Voltage Drift ΔVO/ΔT IO =5mA 输出电压漂移 Output Noise Voltage VN 输出噪声电压 Ripple Rejection 纹RR 波抑制 f =10Hz to 100KHz, TA =+25℃ - f =120Hz VI =28V to 38V 50 67 - - - - - 2 28 230 - - - - dB V Dropout Voltage 电IO =1A, TJ=+25℃ VDrop 压差 Output Resistance rO 输出电阻 Short Circuit ISC Current 短路电流 Peak Current 峰值电IPK 流 三端稳压集成电路极限参数： Parameter 参数 (for VO =5V to 18V) (for VO =24V) f =1KHz VI =35V, TA=+25℃ mΩ mA A TJ =+25℃ Symbol 符号 Value VI VI 35 40 5 单位 V V ℃Input Voltage输入电压 Thermal Resistance Junction-Cases??热阻(结到壳) RθJC (TO-220) Thermal Resistance Junction-Air热阻(结到空气) RθJA (TO-220) Operating Temperature Range工作温度范围 Storage Temperature Range储存温度范围
TOPR TSTG 65 /W ℃/W 0 ~ +125 ℃ -65 ~ +150 ℃
???????????????????????? ??? 图1 78XX内部电路图
?????????????????? 图2 78XX参照测试电路?????????????????????图3? 外形引脚排列图管脚图
??????????????????????????? 图4 纹波抑制电路
??????????????????? ? 图5 负载调节控制电路
??????????????图6 与79XX系列三端稳压构成的正负对称输出电压电路图
??????????????????????????? 图7 典型应用电路图
??????????????????????????????? 图8 TO-220封装图片 ?
端稳压集成电路LM7824中文资料
