Description Features The ZL2006 is an integrated mixed-signal power conversion and management IC that combines an efficient step-down DC-DC converter with key power and thermal management functions in a single package. The ZL2006 incorporates current sharing and adaptive efficiencyoptimization algorithms to provide a flexible, efficient power IC building block. The ZL2006EV1 platform is a 4-layer board demonstrating a 15A synchronous buck converter. Sequencing, tracking, margining, plus other features can be evaluated using this board. A USB to SMBus adapter board can be used to connect the eval board to a PC. The PMBus command set is accessed by using the Zilker Labs PowerNavigator™ evaluation software from a PC running Microsoft Windows. • • • • • 15A synchronous buck converter Optimized for small circuit footprint and dynamic response Configurable through SMBus Onboard enable switch Power good indicator Target Specifications • • • • • • VIN = 12 V VOUT = 1.2 V / 15 A (20 A max) fsw = 615 kHz Efficiency: 86% at 10 A Output ripple: ±1% Dynamic response: ±2.5% (50%-100%-50% load step, di/dt = 2.5 A/µs) • Board temperature: 25°C Figure 1. ZL2006EV1 Block Diagram ZL2006EV1 Functional Description The ZL2006EV1 provides all circuitry required to demonstrate the features of the ZL2006. The ZL2006EV1 has a functionally-optimized ZL2006 circuit layout that allows efficient operation up to the maximum output current. Power and load connections are provided through plug-in sockets. A majority of the features of the ZL2006 such as soft-start delay and ramp times, supply sequencing, voltage tracking, and voltage margining are available on this evaluation board. For voltage tracking and sequencing evaluation, the board can be connected to any other Zilker Labs evaluation board that supports the Digital DC (DDC) bus. Figure 1 shows a functional block diagram of the ZL2006EV1 board. The SMBus address is selectable through a jumper on the top side of the board. All power to the board (VIN and I2C bus) must be removed before changing the jumpers. The hardware enable function is controlled by a toggle switch on the ZL2006EV1 board. The power good (PG) LEDs indicate the correct state of PG when external power is applied to the ZL2006EV1 board. The right angle headers at opposite ends of the board are for connecting a USB to SMBus adapter board or for daisy chaining of multiple evaluation boards. Figure 2 shows the operational circuit. The circuit consists of the ZL2006 IC with its minimal component count to realize a 15 A buck converter. The board layout has been optimized for thermal performance. Operation PMBus Operation The ZL2006 utilizes the PMBus protocol. The PMBus functionality can be controlled via USB from a PC running the PowerNavigator evaluation software in a Windows XP or Windows 2000/NT operating system. Install the evaluation software using the CD included in the ZL2006EV1 kit. For board operation, connect the included USBto-SMBus adapter board to J10 of the ZL2006EV1 board. Connect the desired load and an appropriate power supply to the input and connect the included USB cable to the PC running the PowerNavigator evaluation software. Place the ENABLE switch in “DISABLE” and turn on the power. The evaluation software allows modification of all ZL2006 PMBus parameters. The ZL2006 device on the board has been pre-configured as described in this document, but the user may modify the operating parameters through the eval software or by loading a predefined scenario from a configuration file. Use the mouse-over pop-ups for PowerNavigator help. Refer to Zilker Labs application note AN33 [2] for PMBus details. The ENABLE switch can then be moved to “ENABLE” and the ZL2006EV1 board can be tested. Alternately, the PMBus ON-OFF CONFIG and OPERATION commands may be used. Figure 3 is the board interface circuitry. Figure 4 through Figure 8 show the PCB layout for the board including the board fabrication notes. The bill of materials (BOM) and configuration file are also included for reference. 2 ZL2006EV1DSR2.0 ZL2006EV1 Quick Start Guide Stand Alone Operation USB (PMBus) Operation 1. Set ENABLE switch to “DISABLE” 1. Set ENABLE switch to “DISABLE” 2. Apply load to VOUT+/VOUT- 2. Apply load to VOUT+/VOUT- 3. Connect the USB to SMBus adapter board to J10 of ZL2006EV1 3. Connect power supply (supply turned off) 4. Connect supplied USB cable from computer to USB to SMBus adapter board 4. Turn power supply on 5. Connect power supply (supply turned off) to VIN+/VIN- 6. Turn power supply on 7. Set ENABLE switch to “ENABLE” 8. Monitor ZL2006EV1 board operation using an oscilloscope to VIN+/VIN- 5. Insert the Zilker Labs Eval Kit CD 6. Connect USB to SMBus adapter board to J10 of ZL2006EV1 7. Connect supplied USB cable from computer to USB to SMBus adapter board a. Upon first-time connection, the Found New Hardware Wizard will appear. b. Windows XP users: Select ‘No’ at prompt to search the Internet for drivers. c. Follow the steps on the screen to install the drivers from the CD. 8. Install the PowerNavigator evaluation software by running setup.exe from the PowerNavigator_installer folder on the CD. 9. Set ENABLE switch on EVB to “ENABLE” 10. Monitor and configure the ZL2006EV1 board using PMBus commands in the evaluation software 11. Test the ZL2006EV1 operation using an oscilloscope and the evaluation software. ZL2006EV1DSR2.0 3 ZL2006EV1 Board Schematics Figure 2. ZL2006EV1 Operational Circuit 4 ZL2006EV1DSR2.0 ZL2006EV1 Figure 3. ZL2006EV1 Interface Circuitry ZL2006EV1DSR2.0 5 ZL2006EV1 Board Layout – 4 Layers Figure 4. PCB – Top Layer 6 ZL2006EV1DSR2.0 ZL2006EV1 Figure 5. PCB – Inner Layer 1 (Viewed from Top) ZL2006EV1DSR2.0 7 ZL2006EV1 Figure 6. PCB – Inner Layer 2 (Viewed from Top) 8 ZL2006EV1DSR2.0 ZL2006EV1 Figure 7. PCB – Bottom Layer (Viewed from Top) ZL2006EV1DSR2.0 9 ZL2006EV1 Figure 8. Board Fabrication Notes 10 ZL2006EV1DSR2.0 ZL2006EV1 Bill of Materials ITEM QTY REFDES 1 1 C1 2 3 C2,C3,C4 C8,C9,C15, 4 5 C16,C44 5 3 C10,C26,C27 6 3 C11,C17,C42 7 2 C12,C13 8 2 C29,C46 9 1 C30 10 3 C32,C38,C40 11 3 C39,C41,C43 15 1 C50 16 1 D1 17 1 D2 18 3 D3,D4,D5 19 1 D6 20 1 D7 21 1 JP1 23 1 J2 24 1 J3 25 1 J4 26 1 J5 28 3 L1,R18,R19 29 1 L2 30 2 P1,P2 31 1 Q1 32 1 Q2 33 1 Q3 34 2 Q4,Q6 35 1 Q5 36 1 R1 37 1 R4 38 1 R5 39 1 R6 40 1 R7 41 1 R10 42 1 R11 43 1 R12 44 1 R13 45 1 R14 46 1 R15 47 1 R16 48 1 R17 R20,R21,R23, 49 7 R26,R28,R29 R32 50 1 R24 51 2 R25,R30 52 2 R27,R31 58 1 SW1 73 1 U1 74 1 U2 75 1 U3 78 2 XX6,XX9 XX7,XX10,XX12, 79 4 XX14 XX8,XX11,XX13, 80 4 XX15 XX16,XX17,XX18 81 4 , 82 1 XX20 3 12 13 14 22 27 53 54 55 2 1 2 1 1 1 1 2 1 56 57 76 6 1 1 77 5 NOT INSTALLED: C5,C6 C45 C47,C49 C48 JP2 J6 R33 R34,R35 R40 R41,R43,R44, R45,R46,R47 R42 U4 XX1,XX2,XX3, XX4,XX5 ZL2006EV1DSR2.0 VALUE TOL 10% 10% RATING 16V 25V TYPE X5R X5R 100u 10u 1u 680u 100n 330u 10u 0.1u 100p MBR0540 STPS20L45CG BAT54 ESDA6V1-4BC6 GRN 4 PIN HEADER 5x2 PIN JACK_BARREL HEADER (5X2 RA) SOCKET (5X2 RA) 1000Z 360n JACK_BANANA 2N3904 FDMS8692 FDMS8670AS FDG6301N FDG6304P 100k 0 0 499 1.82k 11.0k 19.6k 21.5k 23.7k 26.1k 28.7k 16.2k 34.8k 20% 20% 10% 20% 10% 20% 10% 10% 5% 6.3V 6.3V 25V 6.3V 25V 16V 25V 10V 100V 40V 45V-20A 30V 6.1V,80W 2V X5R X5R X5R AL POLY X7R AL POLY X7R X7R NP0 SCHOTTKY SCHOTTKY SCHOTTKY 1% 5% 5% 1% 1% 1% 1% 1% 1% 1% 1% 1% 1% 50mA 35A 15A 40V 30V 30V 25V 25V 63mW 63mW 100mW 100mW 100mW 63mW 63mW 63mW 63mW 63mW 63mW 63mW 63mW 10.0k 1% 63mW 4.75k 49.9 392 SW_SPDT ZL2006 MIC2920A-3.3BS SN74AUP1G17 SHUNT_HDR 1% 1% 1% 63mW 100mW 100mW 2.2u 10u 1.5A@18VDC 20% PCB FOOTPRINT MFR SM0805 MURATA SM1206 PANASONIC-ECG MFR PN GRM21BR61C225KA88L ECJ-3YB1E106K SM1210 SM0603 SM0603 SM10P5X10P5 SM0603 10.3X10.3_PXA SM1206 SM0603 SM0603 SOD123 D-2PAK SOD523 SOT23_6L SM0805 SIP4/100 100X100 RA.079PIN 100X100 100X100 SM0603 IHLP_4040DZ_05 .175PLUG/TSTPTS SOT-23 SO8FL_ALLP SO8FL_ALLP SC70_6 SC70_6 SM0402 SM0402 SM0603 SM0603 SM0603 SM0402 SM0402 SM0402 SM0402 SM0402 SM0402 SM0402 SM0402 TAIYO YUDEN PANASONIC-ECG TAIYO YUDEN UNITED CHEMI-CON PANASONIC ECG UNITED CHEMI-CON PANASONIC-ECG KEMET PANASONIC ECG ON SEMI ST MICRO ON SEMI ST MICRO CHICAGO MINIATURE TYCO/AMP SAMTEC KOBICONN SAMTEC SAMTEC MURATA VISHAY EMERSON ON SEMI FAIRCHILD FAIRCHILD FAIRCHILD FAIRCHILD VISHAY ROHM YAGEO PANASONIC-ECG PANASONIC-ECG VISHAY VISHAY VISHAY VISHAY VISHAY VISHAY PANASONIC-ECG PANASONIC-ECG JMK325BJ107MY-T ECJ-1VB0J106M TMK107BJ105KA-T APXA6R3ARA681MJC0G ECJ-1VB1E104K APXA160ARA331MJC0G ECJ-13YB1E106K C0603C104K8RACTU ECJ1VC2A101J MBR0540T1 STPS20L45CG BAT54XV2T1OS ESDA6V1-4BC6 CMD17-21VGC 3-644456-4 TSW-105-07-T-D 163-5004-E TSW-105-08-T-D-RA SSQ-105-02-T-D-RA BLM18HD102SN1D IHLP4040DZERR36M61 108-0740-001 MMBT3904LT3G FDMS8692 FDMS8670AS FDG6301N FDG6304P CRCW0402100KFKED MCR01MZPJ000 RC0603JR-070RL ERJ-3EKF4990V ERJ-3EKF1821V CRCW040211K0FKED CRCW040219K6FKED CRCW040221K5FKED CRCW040223K7FKED CRCW040226K1FKED CRCW040228K7FKED ERJ-2RKF1622X ERJ-2RKF3482X THK FILM SM0402 YAGEO RC0402FR-0710KL THK FILM THK FILM THK FILM PCB VERT PANASONIC-ECG ROHM PANASONIC-ECG NKK ZILKER LABS, INC. MICREL TI TYCO ERJ-2RKF4751X MCR03EZPFX49R9 ERJ-3EKF3920V G13AP-RO ZL2006ALNFT MIC2920A-3.3WS SN74AUP1G17DCKR 881545-2 VERT VERT RA RA RA FERRITE POWDER NPN N-CH N-CH DUAL N-CH DUAL P-CH THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM THK FILM TTL STANDOFF SM0402 SM0603 SM0603 ULTRAMIN MLF36_6X6BX SOT223 SC70_5 SHUNT_HDR 4-40 SCREW PHL 4-40 BUILDING FASTENERSPMS 440 0025 PH CAP_MOLDED PCB FR-4 0.25ID 2.75HX2.188L CAPLUGS ZILKER LABS INC VC-234-8 MPWB-ZL2006-004 SM1206 SM10P5X10P5 SM0603 SM0603 18AWGX.150LS VERT SIP2/100 THK FILM SM0603 THK FILM SM0402 THK FILM SM0603 PANASONIC-ECG UNITED CHEMI-CON KEMET TAIYO YUDEN ECJ-3YB1E106K APXA6R3ARA681MJC0G C0603C104K8RACTU TMK107BJ105KA-T SAMTEC ROHM YAGEO PANASONIC-ECG TSW-102-07-L-S MCR03EZPFX49R9 RC0402FR-0710KL THK FILM SM0603 THK FILM SM0603 TTL SC70_5 PANASONIC-ECG PANASONIC-ECG TI 10u 680u 0.1u 1u JUMPER 2 POS 49.9 10.0k NI 10% 20% 10% 10% 25V 6.3V 10V 25V 1% 1% 1% 100mW 63mW 100mW NI NI SN74AUP1G17 1% 1% 100mW 100mW TIEPT/10WIDE X5R AL POLY X7R X5R SN74AUP1G17DCKR TIEPT/10WIDE 11 ZL2006EV1 Default Configuration Text The following text is loaded into the ZL2006 device on the EV1 as default settings. Each PMBus command is loaded via the PowerNavigator software. The # symbol is used for a comment line. #NOTE: This file is intended for the Rev. 2 ZL2006-EV1 #with L=360nH, Co=5x(100uF/2.0mohm)+(2x680uF/10mohm) #Erase user store & default store RESTORE_FACTORY STORE_USER_ALL STORE_DEFAULT_ALL #Prepare device for all commands to be added to the DEFAULT store RESTORE_DEFAULT_ALL #Manufacturer information fields in ASCII: MFR_ID Zilker Labs MFR_MODEL ZL2006EV1 MFR_LOCATION Austin MFR_REVISION Rev 4.2 #Output Voltage commands VOUT_COMMAND OVUV_CONFIG 1.200000 0x01 #V #2 counts #Output current IOUT_CAL_GAIN IOUT_CAL_OFFSET IOUT_OC_FAULT_LIMIT IOUT_AVG_OC_FAULT_LIMIT IOUT_UC_FAULT_LIMIT IOUT_AVG_UC_FAULT_LIMIT 0.920000 1.4 30.000000 24.000000 -15.000000 -10.000000 #mohms #A #A #A #A #A #Input Voltage VIN_OV_FAULT_LIMIT VIN_OV_WARN_LIMIT VIN_UV_WARN_LIMIT VIN_UV_FAULT_LIMIT 13.4 13.0 4.7 4.5 #V #V #V #V #Other Faults OT_FAULT_LIMIT OT_WARN_LIMIT UT_WARN_LIMIT UT_FAULT_LIMIT 120.000000 110.000000 -20.000000 -30.000000 #deg #deg #deg #deg C C C C #General converter commands TON_DELAY 5.000000 #ms TON_RISE 5.000000 #ms TOFF_DELAY 5.000000 #ms TOFF_FALL 5.000000 #ms FREQUENCY_SWITCH 615.000000 #kHz PID_TAPS A=15141.91, B=-29677.9, C=14599.08 MAX_DUTY 90.000000 #% DEADTIME 0x3838 #56ns max DEADTIME_CONFIG 0x0404 #8ns min, dynamic INDUCTOR 0.36 #uH 12 ZL2006EV1DSR2.0 ZL2006EV1 #Advanced commands MFR_CONFIG USER_CONFIG NLR_CONFIG MISC_CONFIG INTERLEAVE SEQUENCE TEMPCO_CONFIG 0x6A10 #416ns; 5 count; XTEMP dis; fault on internal 0x0000 0xCA010200 #On;1%load;1.5%unload;1toLoad;2toUnload;NoOuter;NoBlank 0x0480 #Precise dis; Adaptive dis; 0x0000 0x0000 0x28 #4000PPM/°C internal STORE_DEFAULT_ALL RESTORE_DEFAULT_ALL ZL2006EV1DSR2.0 13 ZL2006EV1 Measured Data The following data was acquired using a ZL2006EV1 rev 2 evaluation board. Efficiency Adaptive diode emulation and adaptive frequency modes are disabled for these efficiency measurements. 90 88 Efficiency (%) 86 84 82 80 78 76 74 0 2 4 6 8 10 12 14 16 Output Current (A) Figure 9. Efficiency, Vin=12V, Vout=1.2V 14 ZL2006EV1DSR2.0 ZL2006EV1 Ramp-up / Ramp-down Characteristics 1.4 1.2 Output Voltage (V) 1 0.8 0.6 0.4 0.2 0 -0.2 0 0.01 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.06 0.07 0.08 0.09 0.1 Time (s) Figure 10. Ramp Up 1.4 1.2 Output Voltage (V) 1 0.8 0.6 0.4 0.2 0 -0.2 0 0.01 0.02 0.03 0.04 0.05 0.09 0.1 Time (s) Figure 11. Ramp Down ZL2006EV1DSR2.0 15 ZL2006EV1 Dynamic Load Response 0.005 0 Vout(V) -0.005 -0.01 -0.015 -0.02 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 Time(µs) Figure 12. Dynamic Response, 7A to 15A Load Step 0.03 0.025 0.02 Vout(V) 0.015 0.01 0.005 0 -0.005 -0.01 0 0.02 0.04 0.06 0.08 0.1 0.12 0.14 0.16 0.18 0.2 Time(µs) Figure 13. Dynamic Response, 15A to 7A Load Step 16 ZL2006EV1DSR2.0 ZL2006EV1 References [1] ZL2006 Data Sheet, Zilker Labs, Inc., 2008. [2] AN33 – PMBus™ Command Set, Zilker Labs, Inc., 2008. Ordering Information Orderable Part Number ZL2006EVK1 ZL2006EV1 Description ZL2006 Evaluation Kit (EVB, USB Adapter, Cable, Software) ZL2006 Evaluation board only Revision History Date Rev. # February 2009 2.0 ZL2006EV1DSR2.0 Description Initial release with board rev 2 17 ZL2006EV1 Intersil Corporation 900 S. Capital of Texas Hwy. Las Cimas IV, Suite 200 Austin, TX 78746 Tel: 512-382-8300 Fax: 512-382-8329 www.intersil.com © 2009, Intersil Americas, Inc. All rights reserved. Zilker Labs, Digital-DC, PowerNavigator, and the Zilker Labs Logo are trademarks of Intersil Americas, Inc. All other products or brand names mentioned herein are trademarks of their respective holders. Pricing, specifications and availability are subject to change without notice. Please see www.intersil.com for updated information. This product is not intended for use in connection with any high-risk activity, including without limitation, air travel, life critical medical operations, nuclear facilities or equipment, or the like. The reference designs contained in this document are for reference and example purposes only. THE REFERENCE DESIGNS ARE PROVIDED "AS IS" AND "WITH ALL FAULTS" AND INTERSIL AMERICAS DISCLAIMS ALL WARRANTIES, WHETHER EXPRESS OR IMPLIED. INTERSIL AMERICAS SHALL NOT BE LIABLE FOR ANY DAMAGES, WHETHER DIRECT, INDIRECT, CONSEQUENTIAL (INCLUDING LOSS OF PROFITS), OR OTHERWISE, RESULTING FROM THE REFERENCE DESIGNS OR ANY USE THEREOF. Any use of such reference designs is at your own risk and you agree to indemnify Intersil Americas, Inc. for any damages resulting from such use. 18 ZL2006EV1DSR2.0