TS7900 Series 3-Terminal Fixed Negative Voltage Regulator TO-220 ITO-220 TO-263 Pin Definition: 2 (D PAK) 1. Ground 2. Input (tab) 3. Output General Description The TS7900 series of fixed output negative voltage regulators are intended as complements to the popular TS7800 series device. These negative regulators are available in the same seven-voltage options as the TS7900 devices. In addition, one extra voltage option commonly employed in MECL systems is also available in the negative TS7900A Series. 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 heat sinking they can deliver output currents in excess of 1 ampere. This series is offered in 3-pin TO-220, ITO-220 & TO-263 package. Features Standard Application Circuit Output Voltage Range -5 to -24V Output current up to 1A No external components required Internal thermal overload protection Internal short-circuit current limiting Output transistor safe-area compensation Output voltage offered in 4% tolerance A common ground is required between the input and the Ordering Information output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on Part No. Package Packing the Input ripple voltage. XX = these two digits of the type number indicate voltage. TS79xxCZ C0 TO-220 50pcs / Tube * = Cin is required if regulator is located an appreciable TS79xxCI C0 ITO-220 50pcs / Tube distance from power supply filter. TS79xxCM RN TO-263 800pcs / 13 Reel ** = Co is not needed for stability however, it does improve transient response. Note: Where xx denote voltage option o Absolute Maximum Rating (Ta = 25 C unless otherwise noted) Parameter Symbol Limit Unit Input Voltage V * -35 V IN Input Voltage V ** -40 V IN Power Dissipation P Internal Limited W D o Operating Junction Temperature T 0~+125 C J o Storage Temperature Range T -65~+150 C STG Note: * TS7905 to TS7918 ** TS7924 *** Follow the derating curve 1/11 Version: A07 TS7900 Series 3-Terminal Fixed Negative Voltage Regulator TS7905 Electrical Characteristics o o (Vin= -10V, Iout=500mA, 0 CTj125 C, Cin=0.33uF, Cout=0.1uF unless otherwise specified.) Parameter Symbol Test Condition Min Typ Max Unit o Tj=25 C -4.80 -5 -5.20 Output voltage Vout V -7.5VVin-20V, 10mAIout1A, -4.75 -5 -5.25 PD15W o Tj=25 -7.5VVin-25V -- 3 100 Line Regulation REGline C -8VVin-12V -- 1 50 mV o Tj=25 10mAIout1A -- 15 100 Load Regulation REGload C 250mAIout750mA -- 5 50 o Quiescent Current Iq Iout=0, Tj=25 C -- 4 8 -7.5VVin-25V -- -- 1.3 mA Quiescent Current Change Iq 10mAIout1A -- -- 0.5 o Output Noise Voltage Vn 10Hzf100KHz, Tj=25 C -- 40 -- V Ripple Rejection Ratio RR f=120Hz, -8VVin-18V 62 74 -- dB o Voltage Drop Vdrop Iout=1A, Tj=25 C -- 2 -- V o Output Short Circuit Current Ios Tj=25 C -- 750 -- mA o Peak Output Current Io peak Tj=25 C -- 2.1 -- A Temperature Coefficient of o o o Vout/ Tj Iout=10mA, 0 CTj125 C -- -0.1 -- mV/ C Output Voltage TS7906 Electrical Characteristics (Vin= -11V, Iout=500mA, 0oCTj125oC, Cin=0.33uF, Cout=0.1uF unless otherwise specified.) Parameter Symbol Test Condition Min Typ Max Unit o Tj=25 C -5.75 -6 -6.25 Output Voltage Vout V -8.5VVin-21V, 10mAIout1A, -5.7 -6 -6.3 PD15W o Tj=25 -8.5VVin-25V -- 5 120 Line Regulation REGline C -9VVin-13V -- 1.5 60 mV o Tj=25 10mAIout1A -- 14 120 Load Regulation REGload C 250mAIout750mA -- 4 60 o Quiescent Current Iq Iout=0, Tj=25 C -- 4 8 mA -8.5VVin-25V -- -- 1.3 Quiescent Current Change Iq 10mAIout1A -- -- 0.5 o Output Noise Voltage Vn 10Hzf100KHz, Tj=25 C -- 44 -- uV Ripple Rejection Ratio RR f=120Hz, -9VVin-19V 60 73 -- dB o Voltage Drop Vdrop Iout=1A, Tj=25 C -- 2 -- V o Output Short Circuit Current Ios Tj=25 C -- 550 -- mA o Peak Output Current Io peak Tj=25 C -- 2.1 -- A Temperature Coefficient of o o o Vout/ Tj Iout=10mA, 0 CTj125 C -- -0.1 -- mV/ C Output Voltage Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible, and thermal effects must be taken into account separately. This specification applies only for DC power dissipation permitted by absolute maximum ratings. 2/11 Version: A07