IRISMPS1 IRF [International Rectifier], IRISMPS1 Datasheet
IRISMPS1
Related parts for IRISMPS1
IRISMPS1 Summary of contents
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... Over Voltage Protection: Yes 10: Switching Frequency: 85 -425kHz Relevant Technical Documents AN1018a - Using the IR40xx Series SMPS ICs AN1024a - Flyback transformer design for the IR40xx series IRIS4007(K) - Datasheet www.irf.com D ESIGN 233 Kansas Street El Segundo CA 90245 USA Load Range Min Max 0A 5A IRISMPS1 Regulation (V) 4.75V ~ 5.25V 1 ...
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... FET off until all the energy is transferred from the primary side of the transformer to the secondary and bias outputs. When all the energy is transferred, the quasi-resonant signal at the FB pin will start to fall until it can no longer supply the 1.35mA required by the IRIS4007K internal latch, and the FET is turned back 2 IRISMPS1 www.irf.com ...
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... Fig 1) shows the drain voltage of the IRIS4007K and the Vcc voltage during start-up with full load output with a 48VDC input. Note the small dip in the Vcc voltage as the circuit starts to operate, and also the reflected voltage at the drain due from the output, raising the drain voltage above the DC bus. www.irf.com IRISMPS1 3 ...
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... The FB pin signal shows the current ramp when the FET is on(when the drain voltage is low), and the resonant signal being passed back during the FET off time. Fig 3) Drain (D) voltage of IRIS4007K (CH1) and the FB pin voltage (CH2) at 72VDC in/Full load output 4 IRISMPS1 www.irf.com ...
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... R10. Note that this waveform shows some noise on the source pin voltage which is smothed out by the RC filter comprising R9 and C12. The intial voltage spike at the start of the ramp is a result of discharging the quasi-resonant capacitor C5 and the primary winding capacitance of the transformer. www.irf.com output IRISMPS1 5 ...
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... FB pin. Note the very short on time, and the fact that the current ramp voltage at the FB pin does not start from zero, this is due to the offset voltage generated from the voltage feedback loop across R8. Fig 6)Drain (D) voltage of IRIS4011 (CH1) and the FB pin voltage (CH2) at 230VAC in/0.1A load output 6 IRISMPS1 www.irf.com ...
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... Efficiency Efficiency vs DC Input Voltage Efficiency vs Output Power 0.5 2.5 www.irf.com Input Voltage Output Power IRISMPS1 Output Current = 5A Output Current =0.5A Vin=36V Vin=48V Vin=72V 25 7 ...
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... IRISMPS1 48/5V 25W Converter B.O.M. ID Description R1 16k 5% 1206 1/8W R2 75R 5% 0805 1/10W R3 18k 5% 1206 1/8W R4 75R 5% 0805 1/10W 0805 1/8W R6 100R 5% 0805 1/10W R7 2.0K 5% 0805 1/10W R8 5.1K 5% 0805 1/10W R9 680R 5% 0805 1/10W R10 0.15R 5%1206 1/8W C1 22uF 100V Electrolytic Capacitor C2 470pF 0805 50V cermaic capacitor C3 1nF 200V 0805 ceramic capacitor C4 0 ...
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... C13 ISO1A International Rectifier 233 Kansas Street El Segundo CA 90245 Size Title B IRISMPS1 Reference Design Filename Date: Wednesday, June 06, 2001 5Vout gnd out 2 1 Rev 1.1 Sheet ...
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... Board Layout - Component Side 10 IRISMPS1 www.irf.com ...
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... Board Layout - Track Side www.irf.com IRISMPS1 11 ...
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... WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245 Tel: (310) 252-7105 http://www.irf.com/ Data and specifications subject to change without notice. 12 IRISMPS1 2/13/2001 www.irf.com ...