PJ7921CZ

PJ7900 Series 3-Terminal Negative Output Voltage Regulators T hese voltage regulators are intended as complements to the popular PJ7900 Series devices. These negative Available in fixed output voltage options from -5.0 to - 24 volts, these regulators employ current limiting, thermal shutdown, and safe-area compensation--making them remarkably rugged under most operating conditions. With adequate heatsinking they can deliver output currents in excess of 1 ampere. regulators are available in the same seven-voltage options as the PJ7900 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative PJ7900 Series. FEATURES • • • • • • Output Current up to 1 Ampere No External Components Required Internal Thermal Overload Protection Internal Short-Circuit Current Limiting Output Transistor Safe-Area Compensation Available in 4% Voltage Tolerance ORDERING INFORMATION Operating Temperature (Ambient) -20 ℃ to +85℃ Pin : 1. Ground 2. Input 3. Output (Heatsink surface connected to Pin 2.) TO-220 TO-220F Device PJ79xxCZ PJ79xxCI Package TO-220 TO-220F CIRCUIT SCHEMATIC 1-9 2002/10.rev.A PJ7900 Series 3-Terminal Negative Output Voltage Regulators ABSOLUTE MAXIMUM RATINGS (Ta=25℃) RATING Input Voltage *(-5V≧Vo≧-18V) **(-24V) Power Dissipation TO-220 TO-220 TO-220F Operating Ambient Temperature Operating Junction Temperature Storage Temperature SYMBOL Vin Without heatsink PJ7900 Series -35 -40 2 15 10 -20 to +85 0 to +125 -25 to +150 UNIT V Pt *** With heatsink Topr Tj Tstg ℃/W ℃ ℃ ℃ Note: *1: PJ7905 to PJ7918 **2: PJ7924 ***3: Follow the derating curve. When Tj exceeds 150℃, the internal circuit cuts off the output. • PJ7905 ELECTRICAL CHARACTERISTICS (Vin=-10V, Iout=500mA, Cin=2μF, Cout=1μF; Tj=0℃ to 125℃, unless otherwise specified.) CHARACTERISTIC SYMBOL TEST CIRCUIT CONDITION MIN. TYP. MAX UNIT Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent current Change Output Noise Voltage Ripple Rejection Ratio Min. I/O Voltage Difference Peak Output Current Output Voltage Tempoerature Coefficient Vo REGline REGload Iq 1 1 1 2 Δ Iq Vn RR Vdif Io-peak 2 1 3 1 1 Tj=25℃ Vi=-7 to -20V, Io=5mA to 1A, PD