ADP1864-BL-EVALZ Analog Devices Inc, ADP1864-BL-EVALZ Datasheet
ADP1864-BL-EVALZ
Specifications of ADP1864-BL-EVALZ
Related parts for ADP1864-BL-EVALZ
ADP1864-BL-EVALZ Summary of contents
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... SHIPPED CONFIGURATION Fully populated ADP1864-EVALZ Input voltage range Output voltage: 3.3 V Output current Bare board ADP1864-BL-EVALZ Populated with only ADP1864 Rev. C Evaluation boards are only intended for device evalua tion and not for production purposes. Evaluation boards are supplied “as is” and without warra ...
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... EVAL-ADP1864 TABLE OF CONTENTS Features .............................................................................................. 1 Shipped Configuration .................................................................... 1 Evaluation Board Description ......................................................... 1 Evaluation Board Photo ................................................................... 1 Revision History ............................................................................... 2 Powering the Evaluation Board ...................................................... 3 Input Power Source ...................................................................... 3 Output Load .................................................................................. 3 Input and Output Voltmeters ...................................................... 3 Turning On the Evaluation Board .............................................. 3 Measuring the Performance of the Evaluation Board ................. 4 Measuring Output Voltage Ripple .............................................. 4 Measuring the Switching Waveform ...
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... TURNING ON THE EVALUATION BOARD After the power source and load are connected to the ADP1864 evaluation board, the board can be powered for operation. Slowly increase the input power source voltage until the input voltage exceeds the minimum input operating voltage ...
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... V/div setting. Many electronic loads have short-circuit capability. Enable this function on the load and ensure that the circuit current limits at the correct current. Figure 3. Measuring Technique for Output Voltage Ripple Rev Page × I OUT OUT × ADP1864 Buck ...
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... IN Trigger C4 DC 500ns Auto 4.55V Edge Positive = 0.00µs Trigger C1 DC 2.00ns Single –168mV Edge Positive = Rev Page EVAL-ADP1864 C3 C3 BWL AC1M Timebase –4.76µs 50.0mV/div WStream 2.00ns 0.0mV ofst 50.0ks 2.5GSPS Figure 7. V Ripple Load OUT DC1M Timebase –1.19µs 5 ...
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... EVAL-ADP1864 I OUT V OUT BWL AC1M Timebase 1.00A/div 100mV/div WStream 0mA offset 0.0mV ofst 1.00MS 500MSPS Figure 10. Load Transient; 1 250 mA/μ OUT V OUT BWL AC1M Timebase 1.00A/div 100mV/div WStream 0mA offset 0.0mV ofst 1.00MS 500MSPS Figure 11. Load Transient; 1 250 mA/μ OUT C2 V OUT ...
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... 0.8 0 12V IN 0.6 0.5 0.4 0.3 0.2 0.1 0 0.01 0.1 1 LOAD CURRENT (A) Figure 16. Efficiency vs. Load Current 3.289 3.284 3.279 3.274 3.269 3.264 0 0.5 10 Figure 17. Load Regulation Rev Page EVAL-ADP1864 12V IN 1.0 1.5 2.0 2.5 3.0 3.5 LOAD CURRENT (A) ...
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... The switching frequency is internally set in the ADP1864 to 580 kHz. There is a tolerance on this specification, and the minimum and maximum limits can be selected through the pull-down menu (Fsw). When the switching frequency minimum, the current in the Figure 18 ...
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... It also provides the user with the estimated temperature of the ADP1864, the MOSFET, the diode, and the inductor. These calculations are done taking into account the temperature rise due to dissipation as well as the ambient temperature. ...
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... ADP1864 data sheet to determine the actual current sense limit. Note that across the full temperature range and input voltage range of the ADP1864, the current limit voltage can be as low as 80 mV. CHANGING THE DIODE The ADP1864-EVALZ evaluation board is supplied with a Diodes, Inc ...
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... CHANGING THE OUTPUT VOLTAGE The ADP1864-EVALZ evaluation board output regulation voltage can be changed by altering the voltage divider consisting of R and R . The output regulation voltage is determined the following equation: ⎛ + ⎞ ⎜ ⎜ ⎟ ⎟ = × OUT ⎝ ⎠ Modifying the output voltage changes the inductor ripple current and subsequently the output voltage ripple, transient response, and stress on the PFET ...
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... EVAL-ADP1864 SCHEMATIC R IN1 TP1 C C IN1 IN2 C1 TP2 EN ADP1864 TP7 COMP PGATE TP5 GND VIN CL1 IN4 Q1-1 Q1-2 Q1 CL2 CL3 CL4 Figure 19. ADP1864-EVALZ Evaluation Board Schematic Rev Page Q1-5 Q1-4 L1 TP6 TP4 OUT2 OUT1 R S TP3 V OUT ...
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... ASSEMBLY DRAWING 1900mm Figure 20. ADP1864-EVALZ Evaluation Board Assembly Drawing, Front Figure 21. ADP1864-EVALZ Evaluation Board Assembly Drawing, Back Rev Page EVAL-ADP1864 ...
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... Q1-1 0.080 Ω IN2 IN4 R1 OUT2 S IN1 L2, CL3 CL4 S Q1-2, Q1-3, Q1-4, Q1-5 Table 2. ADP1864-BL-EVALZ Designator Value Qty 15-pin header 1 ORDERING GUIDE Model Description 1 ADP1864-EVALZ Evaluation Board 1 ADP1864-BL-EVALZ Blank Evaluation Board RoHS Compliant Part. Area Manufacturer and 2 Package (mm ) Part Number ...
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... NOTES Rev Page EVAL-ADP1864 ...
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... EVAL-ADP1864 NOTES ©2006–2009 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. EB05612-0-7/09(C) Rev Page ...