 |
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
|
| If you can't view the Datasheet, Please click here to try to view without PDF Reader . |
|
|
| Datasheet File OCR Text: |
| (R) L7900 SERIES NEGATIVE VOLTAGE REGULATORS s s s s s OUTPUT CURRENT UP TO 1.5 A OUTPUT VOLTAGES OF -5; -5.2; -6; -8; -9; -12; -15; -18; -20; -22; -24V THERMAL OVERLOAD PROTECTION SHORT CIRCUIT PROTECTION OUTPUT TRANSITION SOA PROTECTION DESCRIPTION The L7900 series of three-terminal negative regulators is available in TO-220, ISOWATT220 TO-3 and D2PAK packages and several fixed output voltages, making it useful in a wide range of applications.These regulators can provide local on-card regulation, eliminating the distribution problems associated with single point regulation; furthermore, having the same voltage option as the L7800 positive standard series, they are particularly suited for split power supplies. In addition, the -5.2V is also available for ECL system. If adequate heat sinking is provided, they can deliver over 1.5A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltages and currents. SCHEMATIC DIAGRAM 1 2 TO-3 1 3 D2PAK 3 1 2 TO-220 ISOWATT220 November 1999 1/13 L7900 ABSOLUTE MAXIMUM RATINGS Symbol Vi Io P tot T op T st g Parameter DC Input Voltage (for VO = 5 to 18V) (for V O = 20, 24V) Output Current Power Dissipation Operating Junction Temperature Range Storage Temperature Range Value -35 -40 Internally limited Internally limited 0 to 150 - 65 to 150 o o Unit V V C C THERMAL DATA Symbol Parameter D PAK 3 62.5 2 TO-220 3 50 ISOWATT220 4 60 TO-3 4 35 Unit o o R thj- ca se Thermal Resistance Junction-case Max R thj- amb Thermal Resistance Junction-ambient Max C/W C/W CONNECTION DIAGRAM AND ORDERING NUMBERS (top view) TO-220 & ISOWATT 220 D2PAK TO-3 Type L7905C L7952C L7906C L7908C L7912C L7915C L7918C L7920C L7922C L7924C TO-220 L7905CV L7952CV L7906CV L7908CV L7912CV L7915CV L7918CV L7920CV L7922CV L7924CV D PAK (*) L7905CD2T L7952CD2T L7906CD2T L7908CD2T L7912CD2T L7915CD2T L7918CD2T L7920CD2T L7922CD2T L7924CD2T 2 ISOWATT220 L7905CP L7906CP L7908CP L7912CP L7915CP L7918CP L7920CP L7924CP TO-3 L7905CT L7952CT L7906CT L7908CT L7912CT L7915CT L7918CT L7920CT L7922CT L7924CT Output Voltage -5V -5.2V -6V -8V -12V -15V -18V -20V -22V -24V (*) AVAILABLE IN TAPE AND REEL WITH "-TR" SUFFIX APPLICATION CIRCUIT 2/13 L7900 ELECTRICAL CHARACTERISTICS FOR L7905C (refer to the test circuits, T j = 0 to 150 oC, Vi = -10V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 C o Test Conditions Tj = 25 C Io = -5 mA to -1 A Vi = 8 to 20 V Vi = -7 to -25 V Vi = -8 to -12 V Po 15 W Tj = 25 oC Tj = 25 oC Tj = 25 C Tj = 25 oC o o Min. -4.8 -4.75 Typ. -5 -5 Max. -5.2 -5.25 100 50 100 50 3 0.5 1.3 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -8 to -25 V Io = 5 mA o -0.4 100 54 60 1.4 2.1 2.5 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV ELECTRICAL CHARACTERISTICS FOR L7952C (refer to the test circuits, T j = 0 to 150 oC, Vi = -10V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 oC Tj = 25 C Io = -5 mA to -1 A Vi = -9 to -21 V Vi = -8 to -25 V Vi = -9 to -12 V Po 15 W Tj = 25 C Tj = 25 oC Tj = 25 oC Tj = 25 oC o o Test Conditions Min. -5.0 -4.95 Typ. -5.2 -5.2 Max. -5.4 -5.45 105 52 105 52 3 0.5 1.3 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -9 to -25 V Io = 5 mA o -0.5 125 54 60 1.4 2 2.5 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. 3/13 L7900 ELECTRICAL CHARACTERISTICS FOR L7906C (refer to the test circuits, T j = 0 to 150 oC, Vi = -11V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 C o Test Conditions Tj = 25 C Io = -5 mA to -1 A Po 15 W Vi = -9.5 to -21.5 V Vi = -8.5 to -25 V Tj = 25 oC Vi = -9 to -15 V Tj = 25 oC Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -9.5 to -25 V Io = 5 mA B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o o o Min. -5.75 -5.7 Typ. -6 -6 Max. -6.25 -6.3 120 60 120 60 3 0.5 1.3 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Tj = 25 C Tj = 25 oC o -0.6 144 54 60 1.4 2 2.5 Io = 1 A Tj = 25 C VO = 100 mV ELECTRICAL CHARACTERISTICS FOR L7908C (refer to the test circuits, T j = 0 to 150 oC, Vi = -14V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 oC Tj = 25 C Io = -5 mA to -1 A Po 15 W Vi = -11.5 to -23 V Vi = -10.5 to -25 V Tj = 25 C Vi = -11 to -17 V Tj = 25 oC Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -11.5 to -25 V Io = 5 mA B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o o o o Test Conditions Min. -7.7 -7.6 Typ. -8 -8 Max. -8.3 -8.4 160 80 160 80 3 0.5 1.3 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Tj = 25 oC Tj = 25 oC -0.6 175 54 60 1.1 1.5 2.5 Io = 1 A Tj = 25 C VO = 100 mV * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. 4/13 L7900 ELECTRICAL CHARACTERISTICS FOR L7912C (refer to the test circuits, T j = 0 to 150 oC, Vi = -19V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 C o Test Conditions Tj = 25 C Io = -5 mA to -1 A Po 15 W Vi = -15.5 to -27 V Vi = -14.5 to -30 V Tj = 25 oC Vi = -16 to -22 V Tj = 25 oC Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -15 to -30 V Io = 5 mA B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o o o Min. -11.5 -11.4 Typ. -12 -12 Max. -12.5 -12.6 240 120 240 120 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Tj = 25 C Tj = 25 oC o -0.8 200 54 60 1.1 1.5 2.5 Io = 1 A Tj = 25 C VO = 100 mV ELECTRICAL CHARACTERISTICS FOR L7915C (refer to the test circuits, T j = 0 to 150 oC, Vi = -23V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 oC Tj = 25 C Io = -5 mA to -1 A Po 15 W Vi = -18.5 to -30 V Vi = -17.5 to -30 V Tj = 25 C Vi = -20 to -26 V Tj = 25 oC Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -18.5 to -30 V Io = 5 mA B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o o o o Test Conditions Min. -14.4 -14.3 Typ. -15 -15 Max. -15.6 -15.7 300 150 300 150 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Tj = 25 oC Tj = 25 oC -0.9 250 54 60 1.1 1.3 2.2 Io = 1 A Tj = 25 C VO = 100 mV * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. 5/13 L7900 ELECTRICAL CHARACTERISTICS FOR L7918C (refer to the test circuits, T j = 0 to 150 oC, Vi = -27V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 C o Test Conditions Tj = 25 C Io = -5 mA to -1 A Vi = -22 to -33 V Vi = -21 to -33 V Vi = -24 to -30 V Po 15 W Tj = 25 oC Tj = 25 oC Tj = 25 C Tj = 25 oC o o Min. -17.3 -17.1 Typ. -18 -18 Max. -18.7 -18.9 360 180 360 180 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -22 to -33 V Io = 5 mA o -1 300 54 60 1.1 1.1 2.2 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV ELECTRICAL CHARACTERISTICS FOR L7920C (refer to the test circuits, T j = 0 to 150 oC, Vi = -29V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 oC Tj = 25 C Io = -5 mA to -1 A Vi = -24 to -35 V Vi = -23 to -35 V Vi = -26 to -32 V Po 15 W Tj = 25 C Tj = 25 oC Tj = 25 oC Tj = 25 oC o o Test Conditions Min. -19.2 -19 Typ. -20 -20 Max. -20.8 -21 400 200 400 200 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -24 to -35 V Io = 5 mA o -1.1 350 54 60 1.1 0.9 2.5 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. 6/13 L7900 ELECTRICAL CHARACTERISTICS FOR L7922C (refer to the test circuits, T j = 0 to 150 oC, Vi = -31V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 C o Test Conditions Tj = 25 C Io = -5 mA to -1 A Vi = -26 to -37 V Vi = -25 to -37 V Vi = -28 to -34 V Po 15 W Tj = 25 oC Tj = 25 oC Tj = 25 C Tj = 25 oC o o Min. -21.1 -20.9 Typ. -22 -22 Max. -22.9 -23.1 440 220 440 220 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -26 to -37 V Io = 5 mA o -1.1 375 54 60 1.1 1.1 2.2 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV ELECTRICAL CHARACTERISTICS FOR L7924C (refer to the test circuits, T j = 0 to 150 oC, Vi = -33V, Io = 500 mA, Ci = 2.2 F, Co = 1 F unless otherwise specified) Symbol Vo Vo V o * V o * Id I d I d Vo T eN SVR Vd Is c I scp Parameter Output Voltage Output Voltage Line Regulation Load Regulation Quiescent Current Quiescent Current Change Quiescent Current Change Output Voltage Drift Output Noise Voltage Supply Voltage Rejection Dropout Voltage Short Circuit Current Short Circuit Peak Current Tj = 25 oC Tj = 25 C Io = -5 mA to -1 A Vi = -27 to -38 V Vi = -27 to -38 V Vi = -30 to -36 V Po 15 W Tj = 25 C Tj = 25 oC Tj = 25 oC Tj = 25 oC o o Test Conditions Min. -23 -22.8 Typ. -24 -24 Max. -25 -25.2 480 240 480 240 3 0.5 1 Unit V V mV mV mV mV mA mA mA mV/ oC V dB V A A Io = 5 to 1500 mA Io = 250 to 750 mA Tj = 25 C Io = 5 to 1000 mA Vi = -27 to -38 V Io = 5 mA o -1 400 54 60 1.1 1.1 2.2 B = 10Hz to 100KHz Tj = 25 oC Vi = 10 V f = 120 Hz o Io = 1 A Tj = 25 C VO = 100 mV * Load and line regulation are specified at constant junction temperature. Changes in Vo due to heating effects must be taken into account separately. Pulce testing with low duty cycle is used. 7/13 L7900 APPLICATION INFORMATION Figure 1 : Fixed Output Regulator. Figure 2 : Split Power Supply ( 15V/1A). Notes : 1. To specify an output voltage, substitute voltage value for "XX". 2. Required for stability. For value given, capacitor must be solid tantalum. If aluminium electrolitics are used, at least ten times value should be selected. C1 is required if regulator is located an appreciable distance from power supply filter. 3. To improve transient response. If large capacitors are used, a high current diode from input to output (1N4001 or similar) should be introduced to protect the device from momentary input short circuit. Against potential latch-up problems. Figure 3 : Circuit for Increasing Output Voltage. Figure 4 : High Current Negative Regulator (- 5V/4A with 5A current limiting). VO = V XX R1+R2 R2 V XX > 3I d R2 C3 Optional for improved transient response and ripple rejection. Figure 5 : Typical ECL System Power Supply (- 5.2V/4A). Optional dropping resistor to reduce the power dissipated in the boost transistor. 8/13 L7900 TO-3 (R) MECHANICAL DATA mm MIN. A B C D E G N P R U V 30.10 3.88 10.9 16.9 26.2 4.09 39.50 1.185 0.152 0.96 TYP. 11.7 1.10 1.70 8.7 20.0 0.429 0.665 1.031 0.161 1.555 0.037 MAX. MIN. inch TYP. 0.460 0.043 0.066 0.342 0.787 MAX. DIM. P G A D C U V O N R B P003N 9/13 E L7900 TO-220 MECHANICAL DATA DIM. MIN. A C D D1 E F F2 G H2 H3 L2 L3 L5 L6 L7 Dia. 26.3 2.6 15.1 6 3.65 10.05 16.2 26.7 27.1 3 15.8 6.6 3.85 1.035 0.102 0.594 0.236 0.144 2.4 1.2 0.35 0.61 1.15 4.95 5.08 mm TYP. MAX. 4.8 1.37 2.8 1.35 0.55 0.94 1.4 5.21 10.4 10.4 0.396 0.638 1.051 1.067 0.118 0.622 0.260 0.152 0.094 0.047 0.014 0.024 0.045 0.195 0.200 MIN. inch TYP. MAX. 0.189 0.054 0.110 0.053 0.022 0.037 0.055 0.205 0.409 0.409 P011D 10/13 L7900 ISOWATT220 MECHANICAL DATA DIM. MIN. A B D E F F1 F2 G G1 H L2 L3 L4 L6 L7 O 28.6 9.8 15.9 9 3 4.4 2.5 2.5 0.4 0.75 1.15 1.15 4.95 2.4 10 16 30.6 10.6 16.4 9.3 3.2 1.126 0.385 0.626 0.354 0.118 mm TYP. MAX. 4.6 2.7 2.75 0.7 1 1.7 1.7 5.2 2.7 10.4 MIN. 0.173 0.098 0.098 0.015 0.030 0.045 0.045 0.195 0.094 0.393 0.630 1.204 0.417 0.645 0.366 0.126 inch TYP. MAX. 0.181 0.106 0.108 0.027 0.039 0.067 0.067 0.204 0.106 0.409 A B L3 L6 L7 F1 F D G1 E H F2 123 L2 L4 P011G G 11/13 L7900 TO-263 (D2PAK) MECHANICAL DATA mm MIN. A A1 B B2 C C2 D E G L L2 L3 4.4 2.49 0.7 1.14 0.45 1.23 8.95 10 4.88 15 1.27 1.4 TYP. MAX. 4.6 2.69 0.93 1.7 0.6 1.36 9.35 10.4 5.28 15.85 1.4 1.75 MIN. 0.173 0.098 0.027 0.044 0.017 0.048 0.352 0.393 0.192 0.590 0.050 0.055 inch TYP. MAX. 0.181 0.106 0.036 0.067 0.023 0.053 0.368 0.409 0.208 0.624 0.055 0.068 DIM. D A C A2 DETAIL"A" A1 B2 B G C2 DETAIL"A" E L2 L L3 P011P6/F 12/13 L7900 Information furnished is believed to be accurate and reliable. However, STMicroelectronic s assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems withoutexpress written approval of STMicroelectronics. The ST logo is a registered trademark of STMicroelectronics (c) 1999 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - China - Finland - France - Germany - Hong Kong - India - Italy - Japan - Malaysia - Malta - Morocco Singapore - Spain - Sweden - Switzerland - United Kingdom - U.S.A. http://www.st.com . 13/13 |
Price & Availability of L7920C
 |
|
|
|
|
All Rights Reserved © IC-ON-LINE 2003 - 2022 |
| [Add Bookmark] [Contact Us] [Link exchange] [Privacy policy] |
|
Mirror Sites : [www.datasheet.hk]
[www.maxim4u.com] [www.ic-on-line.cn]
[www.ic-on-line.com] [www.ic-on-line.net]
[www.alldatasheet.com.cn]
[www.gdcy.com]
[www.gdcy.net] |