LM7912C National Semiconductor, LM7912C Datasheet
LM7912C
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LM7912C Summary of contents
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... The low quiescent current drain of Connection Diagrams TO-220 Package Front View Order Number LM7905CT LM7912CT or LM7915CT See NS Package Number TO3B C 1995 National Semiconductor Corporation TL H 7340 these devices with a specified maximum change with line 12V and ...
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... Output Voltage Typical Applications (Continued) Improves transient response and ripple rejection Do not increase beyond OUT SET R2 Select R2 as follows LM7905CT 300 LM7912CT 750 LM7915CT 1k (Note 1) Input-Output Differential (V 5V 12V and Power Dissipation (Note 2) 25V ...
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... Note 2 Refer to Typical Performance Characteristics and Design Considerations for details Note 3 Regulation is measured at a constant junction temperature by pulse testing with a low duty cycle Changes in output voltage due to heating effects must be taken into account Typical Applications (Continued) (Continued) Conditions unless otherwise noted LM7912C 12V b 19V b Conditions Min Typ ...
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Design Considerations The LM79XX fixed voltage regulator series has thermal overload protection from excessive power dissipation inter- nal short circuit protection which limits the circuit’s maxi- mum current and output transistor safe-area compensation for reducing the output current as the ...
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Typical Applications (Continued OUT R1 Light Controller Using Silicon Photo Cell Lamp brightness increase until mA Necessary only if raw supply filter capacitor is ...
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Typical Applications (Continued) Lamp brightness increases until can be set as low Necessary only if raw supply filter capacitor is more than 2 from LM7905 Load Regulation at I Output ...
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Schematic Diagrams 7 ...
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Schematic Diagrams (Continued) 8 ...
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... Physical Dimensions inches (millimeters) Order Number LM7905CT LM7912CT or LM7915CT LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...