MxL7204. Evaluation Board Manual.

Transcription

1 MxL704 Evaluation Board Manual

2 Table of Contents Table of Contents Introduction... Ordering Information... Evaluation Board Overview... System Set-Up... Powering Up the Evaluation Board... 3 Monitoring or Testing V OUT... 3 Header EXTVCC... 4 Jumper J_MODE... 4 Jumper J_TRACK... 5 Jumper J_TRACK... 5 Jumpers J_RUN and J_RUN... 6 PGOOD... 6 Pin Configuration...7 MxL704EVB Schematic...8 MxL704EVB PCB Layers...9 MxL704EVB Bill of Materials...3 /3/8 ii

3 List of Tables List of Tables Table : Evaluation Board Ordering Part Number... Table : Factory Settings... Table 3: Jumper J_MODE...4 Table 4: Jumper J_TRACK...6 Table 5: Jumper J_TRACK...6 Table 6: EVB Bill of Materials... /3/8 iii

4 List of Figures List of Figures Figure : Top View of MxL704EVB... Figure : Block Diagram MxL704EVB... Figure 3: Powering Up the Evaluation Board...3 Figure 4: Header EXTVCC...4 Figure 5: Jumper J_MODE...4 Figure 6: J_TRACK Jumpers...5 Figure 7: RUN Connectors...6 Figure 8: Pin Configuration...7 Figure 9: EVB Schematic...8 Figure 0: EVB PCB, Top View...9 Figure : EVB PCB Layer, Ground Plane...0 Figure : EVB PCB Layer 3, Signal Plane... Figure 3: EVB PCB, Bottom View... /3/8 iv

5 Introduction Introduction The MxL704 evaluation board provides a platform to evaluate the features and performance of the MxL704. The MxL704 is a dual 4A Power Module optimized for powering Telecom, Networking and Industrial equipment. The factory default configuration for the MxL704 Evaluation Board is V OUT = 3.3V V OUT =.8V 780kHz switching frequency Please refer to the MxL704 datasheet for additional information about the MxL704, including efficiency curves for this configuration with V IN = V. Figure : Top View of MxL704EVB /3/8

6 Ordering Information / Overview Ordering Information Table : Evaluation Board Ordering Part Number Power Module MxL704-AYA-T Evaluation Board MxL704EVB NOTE:. Refer to for most up-to-date Ordering Information. Evaluation Board Overview The block diagram shown in Figure illustrates the connection points for, VOUT,, TRACK, MODE and RUN pins. VOUT TRACK TRACK MODE MXL704 RUN Figure : Block Diagram MxL704EVB System Set-Up Jumpers are factory installed per Table to configure the EVB for operation. Jumper and testing options are described in the next sections. Refer to the product data sheet for additional information. Table : Factory Settings Jumper Factory Setting Description J_MODE Jumper -3 Mode_PLLIN =, forced Continuous Conduction Mode (CCM) J_TRACK Jumper -3 TRACK/SS =, Soft-Start mode J_TRACK Jumper 5-6 TRACK/SS =, Soft-Start mode /3/8

7 Powering Up Powering Up the Evaluation Board Connect the +/- with short, thick leads to a 5.5V to 0V (V typical) power supply. Use test pins and to monitor V IN and respectively. See Note A. Turn on the power supply. The MxL704 EVB will power up and regulate the channel output at 3.3V and channel output at.8v. Note B Note B Note C Note C Note A Note A Figure 3: V IN and V OUT Connections Monitoring or Testing V OUT For the channel output, connect VOUT+/VOUT- with short, thick leads to an electronic load or DUT. Use test pins VOUT and 9 to monitor VOUT+ and VOUT- respectively. See Note B. For the channel output, connect +/- with short, thick leads to an electronic load or DUT. Use test pins and 8 to monitor + and - respectively. See Note C. /3/8 3

8 Jumpers and Options Header EXTVCC An external power input may be applied to EXTVCC. It is enabled into the MxL704 through an internal switch in the IC to drive INTVCC whenever EXTVCC is greater than 4.7V. Do not exceed 6V on the EXTVCC input. Connect the EXTVCC pin to when is less than 5.5V. Note from the datasheet that must be applied before EXTVCC and EXTVCC must be removed before. Figure 4: Header EXTVCC Jumper J_MODE By default, the jumper is set in CCM position (-3) with the jumper connected between EXT_CLK and CCM. In this configuration, connect MODE_PLLIN pin to S which forces both channels into forced continuous mode of operation. The MxL704 EVB will operate in forced CCM. Table 3: Jumper J_MODE Pin Number Name on Board PS EXT_CLK 3 CCM Figure 5: Jumper J_MODE If there is no jumper or if the jumper is set to the PS position with the jumper connected between EXT_CLK and PS (-), and with MODE_PLLIN floating (no jumper) or connected to INTV CC (-), both channels are forced into pulse-skipping mode of operation. An external clock supply may be applied to MODE_PLLIN pin. To do this, first remove the J_MODE jumper and connect the external clock to EXT_CLK. This will force both channels into continuous mode of operation. /3/8 4

9 Jumpers and Options Jumper J_TRACK By default, the jumper is set in the SOFT-START position with TRACK pin connect to (-3). Refer to pin description the product datasheet for other options. Changing the jumper to (-) connects the TRACK pin for output voltage tracking. Jumper J_TRACK Figure 6: J_TRACK Jumpers By default, the jumper is set in the SOFT-START position with TRACK pin connect to (5-6). Refer to the pin description of the product datasheet for other options. Note that the jumper can be changed to 3-4 for TRACK (using R5 and R8 on bottom side) or - (using R0 and R3 on bottom side) to change the resistor values for TRACK. These resistors can be populated as desired. See the schematic as an example where R5 = R8 = 60.4kΩ. /3/8 5

10 Jumpers and Options Table 4: Jumper J_TRACK Pin Number Name on Board TRACK 3 SOFT-START Table 5: Jumper J_TRACK Pin Number Name on Board 5-6 SOFT-START 3-4 EXT - VOUT Jumpers J_RUN and J_RUN If desired, putting a jumper on headers J_RUN or J_RUN will inhibit their respective outputs, VOUT or. Without a jumper on the respective J_RUN header, the output will not be inhibited. Figure 7: RUN Connectors PGOOD The Power Good output can be monitored. Also there is another point, PGOOD_PULLUP, where a different pullup voltage can be applied to alter the PGOOD high level voltage. /3/8 6

11 Pin Configuration Pin Configuration TK/SS TOP VIEW VFB COMP COMP VFB TK/SS M L V IN K RUN EXTVCC SW J H S FREQ/PLLFLTR RUN SW PGOOD G MODE/PLLIN INTVCC F E D C B VOUT A Top View, 5mm x 5mm x.8mm LGA Figure 8: Pin Configuration /3/8 7

12 /3/8 8 EVB Schematic MxL704EVB Schematic Figure 9: EVB Schematic D D C C B B A A Title Number Revision Size C Date: /5/08 Sheet of File: C:\Users\..\DD_MXL704_EVB_FINAL_0_5_08.SCHDOC Drawn By: EXTVCC PGOOD TRACK 3 J_MODE 3pin Jump PLLIN 4 5 RUN 6 RUN FSET J_RUN J_RUN VFB 30.k R9 33pF C6 COUT00 0V 0 COUT 0V 0 COUT3 0V 0 COUT4 VOUT COUT7 0V 0 COUT6 0V 0 COUT8 NS 0 COUT03 VFB 3.3k R5 pf C9 VOUT 0uF 35V CIN CIN00 0uF 50V 0 CIN 0uF 50V 0 CIN3 0uF 50V 0 CIN4 0uF 50V 0 CIN5 4.7uF 6V 0805 C INTVCC uf 6V 0805 C EXTVCC R VOUT R 0uF 6V 0805 C04 R39 RUN RUN R4 R7 VFB VFB R8 COMP COMP 0k R4 INTVCC PGOOD 05K R30 FSET INTVCC COMP COMP 040 R3 040 R4 040 C 040 C C C0 RUN C3 RUN C4 TRACK_SS 3 J_TRACK 3pin Jump 0.uF C5 60.4k R9 60.4k R TRACK_SOFT_START_ TRACK/SS 0.uF C7 60.4k R8 TRACK 60.4k R5 TRACK_SOFT_START_ R3 R0 VOUT TOP_ SW SW MODE_PLLIN SW H0 EXTVCC J4 FREQ_PLLFLTR J8 S J6 MODE_PLLIN H8 INTVCC F6 SW H3 VFB K7 VFB K6 RUN J9 RUN J5 TRACK/SS K8 TRACK/SS K5 PGOOD H5 COMP L7 COMP L6 S J7 S H6 S H7 VOUT A0 VOUT A VOUT A VOUT B0 VOUT B VOUT B VOUT C0 VOUT C VOUT C VOUT D0 VOUT D VOUT D A A A3 B B B3 C C C3 D D D3 A4 H H H4 H9 H J J J3 J0 J J K K K3 K4 K9 K0 K K L L L3 L4 L5 L8 L9 L0 L L M M M3 M4 M5 M6 M7 M8 M9 M0 M M G9 G0 G G F F F3 F4 F5 F7 F8 F9 F0 F F E E E3 E4 E5 E6 E7 E8 E9 E0 E E D4 D5 D6 D7 D8 D9 C4 C5 C6 C7 C8 C9 H G G G3 G4 G5 G6 G7 G8 B4 B5 B6 B7 B8 B9 A5 A6 A7 A8 A9 U R00 PGOOD_PULLUP R6 INTVCC J_TRACK Header 3X LOGO MHOLE MHOLE 3 MHOLE 4 MHOLE TRACK_SS TRACK/SS VOUT+ BLADETERM VOUT- BLADETERM + BLADETERM - BLADETERM + BLADETERM - BLADETERM DP DPSW DP DP DP DPSW DP DP R00 NS NS 0V 0 COUT5 COUT NS NS MXL704 MXL704-DEMO EVALUATION BOARD of

13 PCB MxL704EVB PCB Layers Figure 0: EVB PCB, Top View /3/8 9

14 PCB Figure : EVB PCB Layer, Ground Plane /3/8 0

15 PCB Figure : EVB PCB Layer 3, Signal Plane /3/8

16 PCB Figure 3: EVB PCB, Bottom View /3/8

17 Bill of Materials MxL704EVB Bill of Materials Table 6: EVB Bill of Materials Item Qty Reference Designator Manufacturer Part Number Package Size Component PCB MaxLinear PCB MXL704EVB Evaluation Board U MaxLinear MXL704AYA-T 5x5mmLGA MXL704 Power Module 3 CIN00 Panasonic 35SVPF0M 0.3x0.3mm OSCON 0µF, 35V CIN, CIN3, CIN4, CIN5 COUT, COUT3, COUT4 COUT5, COUT8, COUT6 Murata GRM3ER7H06KAL 0 Murata GRM3ER7A476KE5L 0 Murata GRM3ER7A476KE5L 0 7 C6 Murata GRM885CH330JA0D 8 C9 Murata GRM885CH0JA0D 9 C, C04 Murata GRMBR7C475KA73L C Murata GRM88R7C05KAD C5, C7 Murata GRM88R7H04KA93D R9 Panasonic ERJ-3EKF30V 3 R5 Panasonic ERJ-3EKF33V 4 R30 Panasonic ERJ-3EKF053V 5 R4 Panasonic ERJ-3EKF00V ,, VOUT,, 8, 9, J_TRACK, J_MODE J_RUN, J_RUN Ceramic Cap., 0µF, 50V, X7R, 0% Ceramic Cap., 47µF, 0V, X7R, 0% Ceramic Cap., 47µF, 0V, X7R, 0% Ceramic Cap., 33µF, 50V, NP0, 0% Ceramic Cap., µf, 50V, NP0, 0% Ceramic Cap., 4.7µF, 6V, X7R, 0% Ceramic Cap.,.0µF, 6V, X7R, 0% Ceramic Cap., 0.µF, 50V, X7R, 0% Resistor 30.kΩ, /0W, %, SMD Resistor 3.3kΩ, /0W, %, SMD Resistor 05kΩ, /0W, %, SMD Resistor 0.0kΩ, /0W, %, SMD Wurth Elektronik mm Header pin Wurth Elektronik mm Header pin Wurth Elektronik mm Header 3 pin Wurth Elektronik mm Header pin 0 J_TRACK Wurth Elektronik mm Header 6 pin dual row +, - Wurth Elektronik x0.0in Blade connectors 3 VOUT+, VOUT- +, - Wurth Elektronik x0.0in Blade connectors Wurth Elektronik x0.0in Blade connectors /3/8 3

18 Disclaimer MaxLinear, Inc La Place Court, Suite 00 Carlsbad, CA p f High Performance Analog 060 Rincon Circle San Jose, California 953 USA p f powertechsupport@exar.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. Complying with all applicable copyright laws is the responsibility of the user. Without limiting the rights under copyright, no part of this document may be reproduced into, stored in, or introduced into a retrieval system, or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), or for any purpose, without the express written permission of MaxLinear, Inc. MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Trademarks Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. Copyright 08 MaxLinear, Inc. All rights reserved. /3/8 4