Shantou Huashan Electronic Devices Co.,Ltd. H 7924 █ 3-TERMINAL 1A NEGATIVE VOLTAGE REGULATORS The H7924 series of three terminal negative regulators are available in the TO-220 package and with several fixed output voltages, making them useful in a wide range of applications. Each type employs internal current limiting, Thermal shut down and safe area protection, making it essentially indestructible. █ Features Output current in Excess of 1A TO-220 Output Voltages of -24V lntemal Thermal Overload Protection Short Circuit Protection Output Transistor Safe-Area Compensation █ Absolute Maximum Ratings（Ta=25℃） 1―GND 2―INPUT 3―OUTPUT V I ——Input Voltage………………………………… -35V RθJC——Thermal Resistance Junction-Cases………… 5℃/W RθJA——Thermal Resistance Junction-Air………… 65℃/W TOPR——Operating Temperature Range…………… 0~125℃ TSTG——Storage Temperature Range…………… -65~150℃ 1 Shantou Huashan Electronic Devices Co.,Ltd. H 7924 （unless otherwise specified，0℃≤TJ≤125℃,IO=500mA,VI=33V,CI=2.2μF,CO=1μF） Symbol VO Parameter Min. Typ. Max. -23 -24 -25 Output Voltage Unit TJ=25℃ V -22.8 -24 Conditions IO=5.OmA to 1.0A, PO≤15W, -25.2 VI=-27V to 15 ΔVO ΔVO IQ 480 Line Regulation (Note1) TJ=25℃,VI=-27V to -38V mV 8 180 15 480 Load Regulation (Note1) TJ=25℃,VI=-30V to -36V TJ=25℃,IO=5.0mA to 1.5A mV Quiescent Current 5.0 240 3 6 TJ=25℃,IO=250mA to 750mA mA 0.5 ΔIQ -38V Quiescent Current Change TJ=25℃ IO=5mA to 1.0A mA VI=-27V to -38V 1.0 ΔVO/ΔT Output Voltage Drift -1 mV/℃ VN Output Noise Voltage 400 μV TA=25℃,f=10Hz to 100kHz RR Ripple Rejection 60 dB f=120Hz, △VI=10V VD Dropout Voltage 2 V TJ=25℃,IO=1A ISC Short Circuit Current 300 mA TJ=25℃,VI=-35V IPK Peak Current 2.2 A TJ=25℃ 54 IO=5mA 2 Shantou Huashan Electronic Devices Co.,Ltd. H 7924 3