UPC494C Renesas Electronics Corporation., UPC494C Datasheet
UPC494C
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UPC494C Summary of contents
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SWITCHING REGULATOR CONTROL CIRCUIT DESCRIPTION The PC494 is an inverter control unit which provides all the control circuitry for PWM type switching regulators. Included in this device is the voltage reference, dual error amplifiers, oscillator, pulse width modulator, pulse steering ...
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BLOCK DIAGRAM Ref Out 14 GND Dead-Time 4 Control Non-Inv. Input 1 Inv. Input 2 Non-Inv. Input 16 Inv. Input 15 Feed-Back 3 2 Output Control 13 Reference Low Voltage ...
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ABSOLUTE MAXIMUM RATINGS (T Characteristics Symbol Supply Voltage V CC Error Amplifier Input Voltage V ICM Output Voltage V CER Output Current I C Total Power Dissipation P T Operating Ambient Temperature T A Storage Temperature T stg 2 Note ...
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ELECTRICAL SPECIFICATIONS (V Block Characteristics Reference Output Voltage Section Line Regulation Load Regulation Temperature Coefficient Short Circuit Output Current Oscillator Frequency Section Standard Deviation of Frequency Frequency Change with Temperature Frequency Change with Voltage Dead- Input Bias Current Time Maximum ...
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Block Characteristics Output Collector Cut-off Current Section Emitter Cut-off Current Collector Saturation Common Voltage Emitter Emitter Follower Output Voltage Rise Common Time Emitter Output Voltage Fall Time Output Voltage Rise Emitter Time Follower Output Voltage Fall Time Total Standby Current ...
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Test Input Note Recommend film capacitor. Caution When the emitter follower is output, connect C GND via R C Output Voltage 1 C Output Voltage 2 C Voltage T Threshold Voltage Dead-Time Control Input ...
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TYPICAL PERFORMANCE CHARACTERISTICS (Unless otherwise specified 25° MAXIMUM POWER DISSIPATION 1 With 1.6 mm PC494C glass-epoxy substrate 1.0 Thermal Resistance PC494G* 0.8 R 125˚C/W th(J-A) PC494GS* 0.6 0.4 0 ...
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DUTY CYCLE vs. DEAD-TIME CONTROL INPUT VOLTAGE Dead-Time Control Input Voltage - V COLLECTOR SATURATION VOLTAGE vs. OUTPUT CURRENT 2.0 1.8 1.6 1.4 1.2 1.0 0.8 0.6 0 120 ...
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BASIC APPLICATION CIRCUIT V OUT Switching regulator output pin GND r sense R 100 7 –I 14 osense osense 0.01 F 100 osense 100 k C ...
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CONNECTION DIAGRAM Output Control Input Operation Mode (Pin No.13) Push-pull operation At Ref-out (JP1 Wired) Single-ended or Grounded parallel output (JP2 Wired) Printed Pattern (Example of PC494C GND 10 Output ...
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TYPICAL EXAMPLE OF APPLICATION CIRCUITS 1) Forward Type +12 V (12 ( (13) Output Control ( (14) (7) Ref Out GND 2) Push-pull Type (Isolated GND (Non Isolated) +V (40 V MAX.) ...
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Step-down Chopper +V (40 V MAX.) CC (12 Output (13) C Control GND (7) Remark The dotted line indicates the connection in case of large current. SYNCRONIZED OPERATION If synchronized operation is needed, muster-slave ...
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PACKAGE DRAWINGS (Unit : mm) 16-PIN PLASTIC DIP (7.62mm(300 NOTES 1. Each lead centerline is located within 0. its true position (T.P.) at maximum material condition. 2. Item "K" to ...
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PLASTIC SOP (9.53 mm (375 NOTE Each lead centerline is located within 0. its true position (T.P.) at maximum material condition detail of lead ...
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PLASTIC SOP (7.62 mm (300 NOTE Each lead centerline is located within 0. its true position (T.P.) at maximum material condition. 9 detail of lead ...
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RECOMMENDED SOLDERING CONDITIONS When soldering this product highly recommended to observe the conditions as shown below. If other soldering processes are used the soldering is performed under different conditions, please make sure to consult with our ...
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Data Sheet G12649EJ4V0DS00 PC494 17 ...
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Data Sheet G12649EJ4V0DS00 PC494 ...
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Data Sheet G12649EJ4V0DS00 PC494 19 ...
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The information in this document is current as of November, 2000. The information is subject to change without notice. For actual design-in, refer to the latest publications of NEC's data sheets or data books, etc., for the most up-to-date specifications ...