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| 79XX Description This series of fixed-negative-voltage monolithic integrated-circuit voltage regulators is designed to complement Series MIK7800 in a wide range of applications. These applications include on-card regulation for elimination of noise and distribution problems associated with single point regulation. Each of these regulators can deliver up to 1.5 amperes of output current. The internal current limiting and thermal shutdown features of these regulators make them essentially immune to overload. In addition to use as fixedvoltage regulators, these devices can be used with external components to obtain adjustable output voltages and current and also as the power pass element in precision regulators. Features *3-Terminal Regulators *Output Current Up to 1.5 A *No External Components *Internal Thermal Overload Protection *High Power Dissipation Capability *Internal Short-Circuit Current Limiting Package TO-220 (top view) *Output Transistor Safe Area Compensation Package Internal Block Digram GND R1 Voltage reference R2 OUTPUT Protection circuitry RSC Contek INPUT BEIJING ESTEK ELECTRONICS CO.,LTD 1 79XX Absolute Maximum Ratings over operating temperature range (unless otherwise noted) Parameter Input voltage Continuous total dissipation at 25 free-air temperature C Continuous total dissipation at (or bellow) 25 case temperature C Operating free-air, case, or virtual junctions temperature range Storage temperature range Lead temperature 3.2 mm (1/8 inch) from case for 10 seconds 7924 All others Maximum -40 -35 2 15 0 to 150 -65 to 150 260 Units V W C Recommended Cperating Conditions Parameter 7905 7906 7908 7912 7915 7918 7924 Min -7 -8 -10.5 -14.5 -17.5 -21 -27 0 Max -25 -25 -25 -30 -30 -33 -38 1.5 125 Units Input voltage VI V Output current, IO Operating virtual junction temperature, TJ A C Device Selection Guide Device 7905 7906 7908 7912 7915 7918 7924 Output Voltage -5V -6V -8V -12V -15V -18V -24V BEIJING ESTEK ELECTRONICS CO.,LTD 2 79XX Electrical Characteristics Parameter Output voltage** IO= 5mA to 1A, VI= -7V to -20V, VI= -7V to 25V VI= -8V to 18V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to IO= 5mA f= 10 Hz to 100 KHz IO= 1A 7905 Test Conditions* 25 C 0to 125 C C 25 C 0to 125 C C 25 C 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C 54 Min -4.8 -4.75 7905 Typ Max -5 -5.2 -5 -5.25 12.5 4 60 15 5 -0.4 125 1.1 1.5 0.15 0.08 2.1 100 50 50 15 Units Electrical characteristics at specified virtual junction temperature, V I= -10V, IO = 500mA (unless otherwise noted) V mV dB mV mV/ C V V Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current 2 0.5 0.5 mA A VI= 25V -7V to Electrical Characteristics 7906 Electrical characteristics at specified virtual junction temperature, V I= -11V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -8V to -21V, VI= -8V to 25V VI= -9V to 19V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to IO= 5mA f= 10 Hz to 100 KHz IO= 1A Test Conditions* 25 C 0to 125 C C 25 C 0to 125 C C 25 C 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C 54 Min -5.75 -5.7 7906 Typ Max -6 -6.25 -6 12.5 4 60 15 5 -0.4 150 1.1 1.5 0.15 0.08 2.1 120 60 -6.3 120 60 Units V mV dB mV mV/ C V V Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current * 2 1.3 0.5 mA A VI= 25V -8V to Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. BEIJING ESTEK ELECTRONICS CO.,LTD 3 79XX Electrical Characteristics 7908 Electrical characteristics at specified virtual junction temperature, V I= -14V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -10.5V to -23V, P15W VI= -10.5V to -25V VI= -11V to -17V VI= -11.5V to -21.5V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to 750mA Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current IO= 5mA f= 10Hz to 100 KHz IO= 1A 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C Test Conditions* 25 C 0to 125 C C Min -7.7 -7.6 7908 Typ Max -8 -8.3 -8 -8.4 Units V Input regulation Ripple rejection Output regulation 25 C 0to 125 C C 25 C 54 12.5 4 60 15 5 -0.6 200 1.1 1.5 0.15 0.08 2.1 160 80 mV dB 160 80 mV mV/ C V V 2 1 0.5 mA A VI= -10.5V to -25V IO= 5mA to 1A Electrical Characteristics 7912 Electrical characteristics at specified virtual junction temperature, V I= -19V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -14.5V to -27V, P15W Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current * VI= -14.5V to -30V VI= -16V to -22V VI= -15V to -25V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to 750mA IO= 5mA f= 10 Hz to 100 KHz IO= 1A 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C Test Conditions* 25 C 0to 125 C C Min -11.5 -11.4 7912 Typ Max -12 -12.5 -12 -12.6 Units V 25 C 0to 125 C C 25 C 54 5 3 60 15 5 -0.8 300 1.1 2 0.04 0.06 2.1 80 30 mV dB 200 75 mV mV/ C V V 3 0.5 0.5 mA A VI= -14.5V to -30V IO= 5mA to 1A Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. BEIJING ESTEK ELECTRONICS CO.,LTD 4 79XX Electrical Characteristics 7915 Electrical characteristics at specified virtual junction temperature, V I= -23V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -17.5V to -30V, P15W VI= -17.5V to -30V VI= -20V to -26V VI= -18.5V to -28.5V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to 750mA Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current IO= 5mA f= 10 Hz to 100 KHz IO= 1A 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C Test Conditions* 25 C 0to 125 C C Min -14.4 14.25 7915 Typ -15 -15 Units Max -15.6 15.75 100 50 V Input regulation Ripple rejection Output regulation 25 C 0to 125 C C 25 C 54 5 3 60 15 5 -1 375 1.1 2 0.04 0.06 2.1 mV dB 200 75 mV mV/ C V V 3 0.5 0.5 mA A VI= -17.5V to -30V IO= 5mA to 1A Electrical Characteristics 7918 Electrical characteristics at specified virtual junction temperature, V I= -27V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -21V to -33V, P 15W VI= -21V to -33V VI= -24V to -30V VI= -22V to -32V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to 750mA IO= 5mA f= 10Hz to 100 KHz IO= 1A Test Conditions* 25 C 0to 125 C C 25 C 0to 125 C C 25 C 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C 54 Min -17.3 -17.1 MIK7918 Typ -18 -18 5 3 60 30 10 -1.0 450 1.1 2 0.04 0.06 2.1 360 180 Units Max -18.7 -18.9 360 180 V mV dB mV mV/ C V V 3 1 0.5 mA A Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current * VI= -21V to -33V IO= 5mA to 1A Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. BEIJING ESTEK ELECTRONICS CO.,LTD 5 79XX Electrical Characteristics 7924 Electrical characteristics at specified virtual junction temperature, V I= -33V, IO = 500mA (unless otherwise noted) Parameter Output voltage** IO= 5mA to 1A, VI= -27V to -38V, P 15W-27V to -38V V= I Test Conditions* 25 C 0to 125 C C 25 C 0to 125 C C 25 C 0to 125 C C 25 C 25 C 25 C 0to 125 C C 25 C 54 Min -23 -22.8 7924 Typ -24 -24 5 3 60 85 25 -1 600 1.1 2 0.04 0.06 2.1 Units Max -25 -25.2 480 240 V mV dB Input regulation Ripple rejection Output regulation Temperature coefficient of output voltage Output noise voltage Dropout voltage Bias current Bias current change Peak output current * VI= -30V to -36V VI= -28V to -38V, f= 120Hz IO= 5mA to 1.5A IO= 250mA to 750mA IO= 5mA f= 10Hz to 100 KHz IO= 1A 480 240 mV mV/ C V V 3 1 0.5 mA A VI= -27V to -38V IO= 5mA to 1A Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as possible. Thermal effects must be taken into account separately. ** This specification applies only for dc power dissipation permitted by absolute maximum ratings. Typical Applications Circuit $V When using a negative regulator, bypass capacitors are a must on both the input and output. Recommended values are 2 on the input and 1 on the output. It is considered good F F practice to include a 0.1 capacitor on the output to improve F the transient response (Fig. 1). These capacitors may mylar, ceramic, or tantalum, provided that they have IN 2 79XX 3 $Vout 2 F 1 1 0.1 F Figure 1. Negative Regulator Ordering Information O RDERING NU MB ER 79XX P ACK AGE TO - 220 6A06--6A07 Rm 6A07,Changyin Office Building ,No.88,Yong Ding Road,Hai Dian District ,Beijing Postalcode:100039 Tel: 86-010-58895780 / 81 / 82 / 83 / 84 Http://www.estek.com.cn Email:sales@estek.com.cn REV No:01-060805 BEIJING ESTEK ELECTRONICS CO.,LTD M AR KING ET79XX Address : Fax : 010-58895793 6 |
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