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| IP1060A IP1060A IP1060B SWITCHED MODE POWER SUPPLY CONTROL CIRCUIT V CC V Z 3 4 5 6 7 2 1 16 15 14 FEEDFORW ARD OUTPUT OUTPUT (C O L L ) (E M IT ) FEATURES * * * * * * * * * * * * Stabilised Power Supply Temperature Compensated Reference Source Sawtooth Generator Pulse Width Modulator Remote on/off Switching Current Limiting Low Supply Voltage Protection Loop fault Protection Demagnetisation/Overvoltage Protection Maximum Duty Cycle Clamp Feed Forward Control External Synchronisation FEEDBACK G A IN M O DULATO R DUTY CYLE CONTROL R T T 8 D E M A G N E T IZ A T IO N / 13 O VERVO LTAG E 12 11 10 9 GND CURRENT REM OTE EXTERNAL L IM IT IN G O N /O F F SYNC C Order Information Part Number IP1060BJ IP1060D IP1060J IP1060N IP1060AD IP1060AJ IP1060AN Temperature Range -55C to + 125C -25C to + 85C -25C to + 85C -25C to + 85C 0C to + 70C 0C to + 70C 0C to + 70C Package 16 Pin Ceramic DIP 16 Pin Plastic (150)SOIC 16 Pin Ceramic DIP 16 Pin Plastic DIP 16 Pin Plastic (150)SOIC 16 Pin Ceramic DIP 16 Pin Plastic DIP DESCRIPTION The IP1060 is a control circuit for use in switched mode power supplies. This single monolithic chip incorporates all the control and supervisory (protection) functions required in switched mode power supplies, including an internal temperature compensated reference source, sawtooth generator, pulse width modulator, output stage and various protection circuits. ABSOLUTE MAXIMUM RATINGS (Tcase = 25C unless otherwise stated) Supply Voltage Sourced Current Sourced Output Transistor Output current Collector Voltage (Pin 15) Max. Emitter Voltage (Pin 14) Operating Temperature (Ambient) IP1060B IP1060 IP1060A Storage Temperature Rage Operating Junction Temperature Range 18V 30mA 40mA 18V 5V -55C to +125C -25C to + 85C 0C to 70C -65C to +150C 150C Prelim. 7/99 Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk IP1060A IP1060A IP1060B ELECTRICAL CHARACTERISTICS (TJ = 25C unless otherwise stated) Parameter Internal Reference Voltage (VREF) Temperature Coefficient of VREF Internal Reference (VZ) IL = 0.7mA 7.9 Temperature Coefficient of VZ TJ = Over Temp. Range 2 Test Conditions 1 IP1060 IP1060B Min. Typ. Max. 3.69 3.42 100 8.4 200 9.0 3.72 3.81 4.03 Min. 3.57 3.42 IP1060A Typ. Max. 3.72 100 3.95 4.03 8.4 200 9.0 Units REFERENCE SECTION V ppm/C V ppm/C 100k 5 0-90 0-98 Hz % % 7.8 OSCILLATOR SECTION Frequency Range Initial Accuracy Oscillator Duty Cycle Range TJ = Over Temp. Range R = 5kW fO = 20kHz 0-90 2 50 5 0-98 100k 50 MODULATOR Modulator Input Current VPin5 = 2V TJ = Over Temp. Range 2 -0.2 -5.0 -0.2 -5.0 mA mA % Duty Cycle V mV SUPERVISORY FUNCTIONS Pin 6, Input Current Pin 6, Duty Cycle Limit Control Pin 1, Low Supply Voltage Protection Thresholds Pin 3, Feedback Loop Protection Trip Thresholds Pin 3, Pull Up Current Pin 13, Demag. / O.V. Protection Threshold Pin 13 Input Current Pin 16, Feed Forward Duty Cycle Control Pin 16, Feed Forward Input Current At 0.25V TJ = Over Temp. Range VPin16 = 2VZ 2 At 2V O TJ = Over Temp. Range For 50% Max. Duty Cycle 15kHz to 50kHz 2 -0.2 40 8.85 460 50 9.0 600 -15 600 -0.6 -6.0 60 10.8 720 -35 720 -7.0 -20 40 8.85 460 -7 470 -0.2 50 9.0 600 -15 600 -0.6 -6.0 60 10.8 720 -35 720 -7.0 -20 VPin6 = 0.4VZ At 2V TJ = Over Temp. Range 2 -7 470 mA mV mA % Orig. Duty Cycle 30 40 50 30 40 50 At 16V, VCC = 18V 0.2 50 0.2 50 mA NOTES 1. Test Conditions unless otherwise stated: VCC = 12V, TJ = 25C. 2. Applies Over Full Temperature Range: IP1060B TA = -55 to +125C IP1060 TA = -25 to +85C IP1060A TA = 0 to +70C Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 7/99 IP1060A IP1060A IP1060B ELECTRICAL CHARACTERISTICS (TJ = 25C unless otherwise stated) Parameter Pin 9 Off Pin 9 On Pin 9, Sink Current Pin 10 Off Pin 10 On Pin 10 Sink Current Pin 9 =0V to Pin 10 = 0V VPin9 = 0V VPin9 = 0V Test Conditions IP1060 IP1060B Min. Typ. Max. 0 2 -85 0 2 -85 0.8 VZ -120 0.8 VZ -120 0 2 -85 Min. 0 2 -85 IP1060A Typ. Max. 0.8 VZ -120 0.8 VZ -120 Units 1 EXTERNAL SYNCHRONISATION V mA V REMOTE ON/OFF mA mA Ds mV mV CURRENT LIMITING Pin 11 IIN Single Pulse Inhibit Delay Trip Levels: Shut Down, Slow Start Trip Levels: Current Limit VPin11 = 250mV Inhibit Delay Time for 20% Overdrive at IOUT = 30mA 560 400 -2 0.7 600 480 -10 0.8 700 560 9.5 0.7 54 10k 3 60 54 10k 3 0.4 40 5 5 0.4 40 60 560 400 6.2 -2 0.7 600 480 -10 0.8 700 560 9.5 0.7 ERROR AMPLIFIER Output Voltage Swing Output Voltage Swing Open Loop Gain Feedback Resistor Small Signal Bandwidth (VOH) (VOL) 6.2 V dB W MHz V mA V OUTPUT STAGE VCE(sat) Output Current Max. Emitter Voltage IC = 40mA (Pin 15) (Pin 14) SUPPLY VOLTAGE / CURRENT Voltage Feed V6 = 5V ICC VCC VCC R7 = 25kW IZ = 0 TJ = Over Temp. Range 2 10 15 20 20 24 30 19 20 10 15 24 30 mA mA V ICC = 10mA, Current Feed ICC = 30mA, Current Feed NOTES 1. Test Conditions unless otherwise stated: VCC = 12V, TJ = 25C. 2. Applies Over Full Operating Temperature Range: IP1060B TA = -55 to +125C IP1060 TA = -25 to +85C IP1060A TA = 0 to +70C Semelab plc. Telephone +44(0)1455 556565. Fax +44(0)1455 552612. E-mail: sales@semelab.co.uk Website: http://www.semelab.co.uk Prelim. 7/99 |
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