NE5560N Philips Semiconductors, NE5560N Datasheet
NE5560N
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NE5560N Summary of contents
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... Product specification NE/SE5560 Packages FEEDFORWARD OUTPUT (COLL OUTPUT (EMIT DEMAG: OVERVOLTAGE 5 12 GND 6 11 CURRENT LIMITING 7 10 REMOTE ON/OFF EXTERNAL SYNC T SL00360 ORDER CODE DWG # NE5560N SOT38-4 NE5560D SOT162-1 SE5560N SOT38-4 SE5560F 0582B RATING UNIT + +1. -55 to +125 -65 to +150 C 853-0125 13721 ...
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... Philips Semiconductors Switched-mode power supply control circuit BLOCK DIAGRAM FEED FORWARD 16 SAWTOOTH REFERENCE GENERATOR VOLTAGE 0.48V 0.6V + FEEDBACK 3 VOLTAGE – 4 GAIN ADJUST 5 MODULATOR INPUT + 8 CUTY CYCLE CONTROL – + 0.6V 1k 0.48V – 11 CURRENT + LIMITING – 0.6V NOTE: 1. See Voltage/Current fed supply characteristic curve. ...
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... Philips Semiconductors Switched-mode power supply control circuit DC ELECTRICAL CHARACTERISTICS T = =12V, unless otherwise specified SYMBOL SYMBOL PARAMETER PARAMETER Reference sections V Internal reference voltage REF Temperature coefficient of V REF V Internal Zener reference Z Temperature coefficient Oscillator section Frequency range Initial accuracy oscillator Duty cycle range ...
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... Philips Semiconductors Switched-mode power supply control circuit DC ELECTRICAL CHARACTERISTICS SYMBOL SYMBOL PARAMETER PARAMETER Current limiting I Pin 11 Input current IN Single pulse inhibit delay OC2 Trip Levels: Shut down, slow start, low level OC1 Current limit, high level OC Low Level in terms of high level, ...
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... Philips Semiconductors Switched-mode power supply control circuit MAXIMUM PIN VOLTAGES Pin Feedback 4 Gain 5 Modulator 6 Duty Cycle Control External Sync 10 Remote On/Off 11 Current Limiting 12 GND 13 Demagnetization/Overvoltage 14 Output (Emit) 15 Output (Collector) 16 Feed-forward NOTES: 1. When voltage-forced, maximum is 18V; when current-fed, maximum is 30mA. See voltage-/current-fed supply characteristic curve. ...
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... Philips Semiconductors Switched-mode power supply control circuit TYPICAL PERFORMANCE CHARACTERISTICS Graph for Determining MAX MAX (%) 100 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Power Derating Curve 1 – 125 OPERATING CURVE Regulation vs Error Amp Closed Gain V /V (%) O REF – (3.72V) ...
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... Philips Semiconductors Switched-mode power supply control circuit TYPICAL PERFORMANCE CHARACTERISTICS Typical Frequency Plot f(kHz) 1000 100 R= R=10k R=20k 20 R=40k 2.5 3 3.5 THEORY OF OPERATION The following functions are incorporated: – A temperature-compensated reference source. – An error amplifier with Pin 3 as input. The output is connected to Pin 4 so that the gain is adjustable with external resistors. – ...
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... Philips Semiconductors Switched-mode power supply control circuit The current consumption at 12V is less than 10mA, provided that no current is drawn from V and R 20k . Z (7-12) The Sawtooth Generator Figure 6 shows the principal circuitry of the oscillator. A resistor between Pin 7 and Pin 12 (GND) determines the constant current that charges the timing capacitor C ...
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... Philips Semiconductors Switched-mode power supply control circuit 5.6V 1.1V >2V <0.8V 60dB 1kHz 10kHz Figure 8. Error Amplifier Compensation Open-Loop Gain (+) 8 1994 Aug 31 INHIBIT ‘SET’ Figure 7. Sawtooth Oscillator Synchronization SLOPE 20dB/DECADE 1MHz SL00367 3.72V + ERROR AMP 3 – PWM OUT (–) O.C. ...
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... Philips Semiconductors Switched-mode power supply control circuit REF REF 1 0.9 0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 (+) 8 (%) 100 Figure 11. Transfer Curve of Pulse-Width Modulator Duty Cycle vs Input Voltage 1994 Aug 31 (%) – (3.72V Duty Cycle — — % Regulation 3.72V + ERROR AMP 3 – ...
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... Philips Semiconductors Switched-mode power supply control circuit 100 0.1 0.2 (%) MAX 50 MAX 40 30 MAX Figure 13. Soft-Start Minimum Duty Cycle vs R 0.6V START STOP 1994 Aug 31 MAX (%) R 1 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 Figure 12. Graph for Determining MAX 90% MAX 70% ...
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... Philips Semiconductors Switched-mode power supply control circuit OC NORMAL OPERATING POINT LEVEL 1 LEVEL 2 .48 V (CURRENT LIMITING) 11 Figure 15. Output Characteristics Dynamic Current Limit and Current Protection (Pin 11) In many applications not necessary to have a real constant-current output of the SMPS. Protection of the power transistor will be the prime goal. This can be realized with the NE5560 in an economical way ...
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... Philips Semiconductors Switched-mode power supply control circuit Remote On/Off Circuit (Pin 10) In systems where two or more power supplies are used often necessary to switch these supplies on and off in a sequential way. Furthermore, there are many applications in which a supply must be switched by a logical signal. This can be done via the TTL-compatible remote on/off input on Pin 10 ...
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... Pin 1 voltage. 16 APPLICATIONS NE/SE5560 Push-Pull Regulator This application describes the use of the Philips Semiconductors NE/SE5560 adapted to function as a push-pull switched mode regulator, as shown in Figures 23 and 24. Input voltage range is +12V to +18V for a nominal output of +30V and -30V at a maximum load current of 1A with an average efficiency of 81% ...
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... Philips Semiconductors Switched-mode power supply control circuit NOTES: Power ground and signal ground must be kept separated T1, Primary = 130T (C.T.) #26 Secondary = 18T (C.T.) #22 Core = Ferroxcube 3622 3C8 material C.T. = 50T #26 0n Ferroxcube 2616 core (3C8) F2D bobbin T2, Primary = 16T (C.T.) #18 Secondaries (each) 52T (C.T.) #22 ...
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... Philips Semiconductors Switched-mode power supply control circuit NOTES: Power ground and signal ground must be kept separated T1, Primary = 130T (C.T.) #26 Secondary = 18T (C.T.) #22 Core = Ferroxcube 3622 3C8 material C.T. = 50T #26 0n Ferroxcube 2616 core (3C8) F2D bobbin T2, Primary = 16T (C.T.) #18 Secondaries (each) 52T (C.T.) #22 ...