IRDC3843W International Rectifier, IRDC3843W Datasheet
IRDC3843W
Specifications of IRDC3843W
Related parts for IRDC3843W
IRDC3843W Summary of contents
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... This user guide contains the schematic and bill ramp, of materials for the IR3843W evaluation board. The guide describes operation and use of the evaluation board itself. Detailed input, information for IR3843W is available in the IR3843W data sheet. IRDC3843W for optimum cost and application 1 ...
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... For sequencing application, R16 should be Table I. Connections Signal Name V (+12V) in Ground Vcc input Ground for Vcc input Ground of V out V (+1.8V) out Enable Sequence Input Power Good Signal IRDC3843W The value of R14 2 ...
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... Connection Diagram Enable Seq AGND PGood SS Fig. 1: Connection diagram of IR384xW evaluation boards 10/27/2009 Vin GND Vcc GND IRDC3843W GND Vo 3 ...
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... Fig. 3: Board layout, bottom overlay (rear view) 10/27/2009 Fig. 2: Board layout, top overlay IRDC3843W 4 ...
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... Single point connection between AGND and PGND. AGND Plane 10/27/2009 Fig. 4: Board layout, mid-layer I. Fig. 5: Board layout, mid-layer II. IRDC3843W PGND Plane 5 ...
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... AGnd1 15 Boot Vcc PGood IRDC3843W ...
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... W,1% 49.9k 0603,1/10 W,1% 7.5k 0603,1/10W,1% 3.3k 0603,1/10W,1% 1uF 1uF, 10V, X5R,0805 MM3Z5V6B Zener,5.6V MMBT3904/SOT NPN, 200mA, 40V, SOT23 IR3843W 2A SupIRBuck. PQFN 5x6mm IRDC3843W Manufacturer Part Number Panasonic - ECG ECJ-3YX1C106K Panasonic EEV-FK1E331P Panasonic ECJ-1VB1E104K Panasonic ECJ-1VB1H222K Panasonic ECJ-1VC1H181J Panasonic ECJ-2FB0J226M ...
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... Vin=12.0V, Vcc=5V, Vo=1.8V, Io=0-2A, Room Temperature, No Air Flow Fig. 17. Start Load Fig. 19. Start up with 1.62V Pre Bias, 0A Load Fig. 21. Inductor node at 2A load Ch :LX 2 10/27/2009 :Enable 4 SS IRDC3843W Fig. 18. Start Load Fig. 20. Output Voltage Ripple, 2A load Fig. 22. Short (Hiccup) Recovery PGood ...
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... TYPICAL OPERATING WAVEFORMS Vin=12V, Vcc=5V, Vo=1.8V, Io=0-2A, Room Temperature, No Air Flow Fig. 23. Transient Response step 2.5A/s 10/27/2009 IRDC3843W 9 ...
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... TYPICAL OPERATING WAVEFORMS Vin=12V, Vcc=5V, Vo=1.8V, Io=2A, Room Temperature, No Air Flow Fig. 24. Bode Plot at 2A load shows a bandwidth of 85.54kHz and phase margin of 55.509 10/27/2009 degrees IRDC3843W 10 ...
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... TYPICAL OPERATING WAVEFORMS Vin=12V, Vo=1.8V, Io=0- 2A, Room Temperature, No Air Flow 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0. 10/27/2009 Load Percentage (%) Fig.15: Efficiency versus load current Load Percentage (%) Fig.16: Power loss versus load current IRDC3843W 80 90 100 80 90 100 11 ...
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... THERMAL IMAGES Vin=12V, Vo=1.8V, Io=2A, Room Temperature, No Air Flow Test points 1 and 2 are IR3843W and inductor, respectively. 10/27/2009 Fig. 17: Thermal Image at 2A load IRDC3843W 12 ...
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... Vo. For the following test results a 0-3.3V source is applied to SEQ input. - The controlling input should be applied after the SS pin is clamped to 3.0V. Fig. 18: Simultaneous Tracking a 3.3V input at power-up and shut-down 10/27/2009 Ch2: Vout Ch3:SS Ch4: Seq IRDC3843W 13 ...
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... The pad lands (the 4 big pads other than the 11 IC pins) length and width should be equal to maximum part pad length and width. However, the minimum metal to metal spacing should be no less than 0.17mm for 2 oz. Copper; no less than 0.1mm for 1 oz. Copper and no less than 0.23mm for 3 oz. Copper. 10/27/2009 IRDC3843W ...
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... Ensure that the solder resist in between the lead lands and the pad land is ≥ 0.15mm due to the high aspect ratio of the solder resist strip separating the lead lands from the pad land. 10/27/2009 IRDC3843W ...
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... The maximum length and width of the land pad stencil aperture should be equal to the solder resist opening minus an annular 0.2mm pull back to decrease the incidence of shorting the center land to the lead lands when the part is pushed into the solder paste. 10/27/2009 IRDC3843W ...
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... This product has been designed and qualified for the Consumer market. 10/27/2009 BOTTOM VIEW 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 Visit us at www.irf.com for sales contact information Data and specifications subject to change without notice. 11/07 IRDC3843W TAC Fax: (310) 252-7903 ...