TS7900 Series 3-Terminal Fixed Negative Voltage Regulator TO-220 ITO-220 Pin Definition: 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 TS7900 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. Features Standard Application Circuit Output Voltage: -5 & -12V 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 Ordering Information the output voltages. The input voltage must remain typically 2.0V above the output voltage even during the low point on the Input ripple voltage. Part No. Package Packing XX = these two digits of the type number indicate TS79xxCZ C0 TO-220 50pcs / Tube voltage. TS79xxCZ C0G TO-220 50pcs / Tube * = Cin is required if regulator is located an appreciable distance from power supply filter. TS79xxCI C0 ITO-220 50pcs / Tube ** = Co is not needed for stability however, it does TS79xxCI C0G ITO-220 50pcs / Tube improve transient response. Note: Where xx denote voltage option 05=-5V, 12=-12V G denote for Green Product Halogen Free o Absolute Maximum Rating (Ta = 25 C unless otherwise noted) Parameter Symbol Limit Unit Input Voltage V -35 V IN Power Dissipation P Internal Limited W D o Operating Junction Temperature Range T 0 ~ +125 C JOPR o Junction Temperature T +150 C J o Storage Temperature Range T -65~+150 C STG TO-220 3 o Thermal Resistance - Junction to Case R C/W JC ITO-220 5 TO-220 50 o Thermal Resistance - Junction to Ambient R C/W JA ITO-220 60 Note: * Follow the derating curve 1/6 Version: F13 TS7905CI C0 / TS7912CI C0 TS7905CZ C0 / TS7905CZ C0G TS7912CZ C0 / TS7912CZ C0G Not Recommended 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 -7.5VVin-20V, V -4.75 -5 -5.25 10mAIout1A, PD15W -7.5VVin-25V -- 3 100 o Line Regulation REGline Tj=25 C -8VVin-12V -- 1 50 mV 10mAIout1A -- 15 100 o Load Regulation REGload Tj=25 C 250mAIout750mA -- 5 50 o Quiescent Current Iq Iout=0, Tj=25 C -- 4 8 Quiescent Current -7.5VVin-25V -- -- 1.3 mA Iq Change 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 Output Short Circuit o Ios Tj=25 C -- 750 -- mA Current o Peak Output Current Io peak Tj=25 C -- 2.1 -- A Temperature Coefficient o o o Vout/ Tj Iout=10mA, 0 CTj125 C -- -0.1 -- mV/ C of Output Voltage TS7912 Electrical Characteristics o o (Vin= -19V, 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 -11.53 -12 -12.48 Output Voltage Vout -14.5VVin-27V, V -11.42 -12 -12.60 10mAIout1A, PD 15W -14.5VVin-30V -- 10 240 o Line Regulation REGline Tj=25 C -15VVin-19V -- 3 120 mV 10mAIout1A -- 12 240 o Load Regulation REGload Tj=25 C 250mAIout750mA -- 4 120 o Quiescent Current Iq Tj=25 C, Iout=0 -- 4.3 8 -14.5VVin-30V -- -- 1 mA Quiescent Current Iq Change 10mAIout1A -- -- 0.5 o Output Noise Voltage Vn 10Hzf100KHz, Tj=25 C -- 75 -- uV Ripple Rejection Ratio RR f=120Hz, -15VVin-25V 55 70 -- dB o Voltage Drop Vdrop Iout=1A, Tj=25 C -- 2 -- V Output Short Circuit mA o Ios Tj=25 C -- 350 -- Current o Peak Output Current Io peak Tj=25 C -- 2.1 -- A Temperature Coefficient o o o Vout/ Tj Iout=10mA, 0 CTj125 C -- -1 -- mV/ C of 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. 2/6 Version: F13 TS7905CI C0 / TS7912CI C0 TS7905CZ C0 / TS7905CZ C0G TS7912CZ C0 / TS7912CZ C0G Not Recommended