Application Note 1826 Author: Richard Kroeger ISL9520EVAL1Z Evaluation Board Setup Procedure The ISL9520 is a highly integrated Narrow VDC regulator/battery charger controller for Li-ion/Li-ion polymer batteries. It has an SMBus interface and provides gate drive to external switching N-channel FETs that control system voltage, charge current limit, and input current limit. The ISL9520EVAL1Z evaluation board includes a USB to SMBus interface to allow users to control the ISL9520 from a personal computer. What’s Needed The following materials are recommended to perform testing (Figure 1): • One adjustable 25V/6A power supply • Two adjustable electronic loads with selectable constant current mode and constant voltage mode • One volt meter What’s Inside • One 500MHz four-channel oscilloscope with voltage and current probes The ISL9520EVAL1Z Evaluation Board Kit contains the following materials: • A personal computer (PC) loaded with ISL9520 control software and drivers • Qty (1) ISL9520EVAL1Z Evaluation Board • Qty (1) USB cable INTERSIL INTERSIL ISL9520EVAL1Z ISL88731 EVAL2Z REVB AC ACADAPTER ADAPTER INPUT INPUT AC ACADAPTER ADAPTER OR OR POWER SUPPLY DCDC POWER SUPPLY 4V TO20V, 25V, 6A 5V 5A ++ + -- - USB USB SYSTEM SYSTEM OUTPUT OUTPUT + + - - +- + + - - +- SYSTEM LOAD SYSTEM LOAD OR OR CC ELECTRONIC LOAD ELECTRONIC LOAD BATTERY PACK BATTERY PACK OR OR CV ELECTRONIC LOAD LOAD ELECTRONIC BATTERY BATTERY OUTPUT OUTPUT VARIOUS TOTO VARIOUS TEST POINTS TEST POINTS + - +- DC VOLTMETER DC VOLT METER <10mV to >20v FIGURE 1. ISL9520EVAL1Z HARDWARE CONNECTION DIAGRAM February 22, 2013 AN1826.0 1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas LLC 2013. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. Application Note 1826 Install the Software Download and install the ISL9520 control software by following the instructions provided in the “ISL9520 Software Installation Guide”. This document also contains troubleshooting instructions to be used in the rare event that the software does not install on the first attempt. Run the ISL9520 Application Plug the USB cable up, one end to the computer and the other end to the evaluation board. No other connections are required to read and write to the registers. The ISL9520 evaluation software should be available in your computer’s Start → All Programs list. The “Intersil” folder will contain the program. Click the program name ISL9520 Control C1 to run the application. Figure 2 shows the DAC Controls tab of the ISL9520 user interface. Initially, the software will indicate “FFFF” for the register values. Click the Read All icon to read the actual initial values in the registers. Charge Current, Input Current, Max System Voltage, and Min System Voltage can be edited by clicking on the up/down arrows or by placing the cursor at the desired location and typing the correction. If the sense resistor shunts RS1 or RS2 have been changed on the board then the sense resistor values in the blue boxes should also be changed accordingly so that correct binary values are sent. The eggshell colored boxes are the digital values sent and read. The white WRITE ALL 1/min box should be checked if a continuous test is desired, otherwise the SMBus Inactivity Time-out timer will shut down charging after 3 minutes. FIGURE 2. ISL9520 DAC CONTROLS TAB 2 AN1826.0 February 22, 2013 Application Note 1826 FIGURE 3. ISL9520 CONTROL REGISTER TAB Figure 3 shows (ISL9520 Control Register tab) the control register 3D described in the data sheet and the bits that may be toggled by clicking on the individual bit switches. The configuration will be written when the Write CONTROL REG icon is clicked. The configuration is read when the READ ALL icon is clicked. The Test Register should be written with “0600” to optimize the mode boundary transitions. To do this, place the cursor to the right of the first zero in the blue box, type a “6”, then hit the delete key once. Click on the Write test register icon, then click on the Read TEST REG icon to verify that the register has been updated. 3 AN1826.0 February 22, 2013 Application Note 1826 FIGURE 4. ISL9520 CONTROL REGISTER TAB AFTER EDITING TEST REGISTER Figure 4 shows the updated Control Register tab. The VendorID (reg FE) and DeviceID (reg FF) should display 0049 and 0005 respectively. If the power connections have not already been made, they can be made at this time. Figure 1 shows the required power connections. 4 AN1826.0 February 22, 2013 TP_RS1_N 1 J_UGATE 3 4 5 Q44 2 C8 1 0.22UF C1 SDA SCL VSMB 10K R24 0 A R1 0.1UF TP_GNDA_1 A TP_GNDA_2 A R38 0 R25 0 C31 10UF C29 10UF C27 10UF C25 10UF C40 10UF C38 10UF C36 10UF C34 10UF 47UF 1 1 C37 47UF 2 2 1 C35 47UF 2 1 1 C33 47UF 2 C32 47UF 2 C30 47UF 1 C28 47UF 2 1 1 C26 47UF 2 2 10UF 4 1UF 1 J9 1000PF 3 4 5 2 C6 C15 C12 0.1UF C13 0 RF22 2.2 RF21 Z70 1 2 1UF C10 TP_VDDP 3K 10K R11 3 BZX84C5V6LT1 3 10K 3 1UF C11 0.1UF A 470PF C24 0.1UF C39 R22 10K R12 A TP_ACOK SEE PAGE 2 R18 1UF TP_GND_3 TP_BMON TP_AMON 10K CF21 15 C5 ACOK 14 RST# 13 VSMB 12 SCL SDA AMON 9 10 VFB R2 56K R71 PGND PHASE UGATE BOOT CSIN 2 1000PF A J3 5 16 BMON 11 EP A 17 BGATE VCOMP A 18 CSON CELL 4.7 19 CSOP ISL9520HRTZ ICOMP R17 20 VDD VFSW 29 C2 SGATE CSIP 1K U1 ADET 8 0 R15 TP_SMB_RST_N 1UF C52 1 2 22 23 24 25 26 27 28 C4 0.1UF 3 R6 2 10K R7 27K 1 7 21 VDDP 10K 1 Q_BGATE R3 0 A FIGURE 5. ISL9520EVAL1Z REV A SCHEMATIC J8 TP_VDD TP_BGATE Application Note 1826 0.01UF 6 R26 Q70 LGATE DCIN BSS84TA A A 5 A AGATE A 3 2 1 0.010 NC Z71 NC 4 TP_ICOMP C3 1 Q71 HAT1127H RS2 R72 C C BZX84C5V6LT1 2 3 TP_VCOMP TP_VBAT TP_RS2_N TP_RS2_P R70 1 A C22 47UF 1 TP_GND_2 470 A TP_VFRQ J6 2 BSS84TA A TP_ACIN 0 A 33 TP_DCIN C9 R27 2 C20 C23 R28 Q4 100 0.1UF 5 HAT2116H L1 4.7UH 10UF 3 4 5 1 47UF 1 2 3 1 1 2 3 5 HAT2116H 4 Q2 1 2 3 0.047UF 4 0.1UF CF11 12 2 J_LGATE 2 21 1 3 2 2 Q3 C17 4 47UF Q1 1 2 3 10 1 CF13 10 RF12 RF11 CF12 0.1UF 10K R13 10K R61 5 R44 2 5 1 5 HAT2116H 4 C14 C21 HAT2116H J_UG-PHASE A TP_AGATE J5 1 4 TP_SGATE TP_V_SYSTEM J_SYSTEM RS1 0.020 5 J1 J_PHASE C18 HAT1127H Q_AGATE OPEN R9 3 2 1 100K 4 TP_GND_1 C7 R21 J2 3 2 1 5 0.1UF Q_SGATE 100K HAT1127H 2 1UF TP_RS1_P 47UF C19 2 TP_VADAPTER 2 21 1 ISL9520EVAL1Z Schematics AN1826.0 February 22, 2013 ISL9520EVAL1Z Schematics (Continued) 6 Application Note 1826 FIGURE 6. ISL9520 EVAL1Z REV A SCHEMATIC AN1826.0 February 22, 2013 Application Note 1826 TABLE 1. ISL9520EVAL1Z, REV A EVALUATION BOARD BILL OF MATERIALS NO. REFERENCE DESIGNATOR QTY 1 C1 1 CAP, SMD, 0603, 470pF, 50V, 5%, X7R, ROHS GENERIC 2 C2, C5, C6, C39 4 CAP, SMD, 0603, 1000pF, 50V, 5%, X7R, ROHS GENERIC 3 C3 1 CAP, SMD, 0402, 0.068µF, 25V, 10%, X7R, ROHS GENERIC 4 C10, C11, CF21, C304, C308 5 CAP, SMD, 0603, 1.0µF, 16V, 20%, X7R, ROHS GENERIC 5 C13, C22, C52 3 CAP, SMD, 0805, 1.0µF, 25V, 10%, X5R, ROHS GENERIC 6 C14, C17 2 CAP, SMD, 25TQC33MY, 33µF, 25V, 20%, ROHS SANYO 7 C18, C19, C20, C26, C28, C30, C32, C33, C35, C37 10 CAP, SMD, 20TQC47MY, 47µF, 20V, 20%, ROHS SANYO 8 C15 1 CAP, SMD, 1206, 10µF, 25V, 20%, X5R, ROHS GENERIC 9 C4, C7, C12, C24, C39, CF12, CF13, C305, C307, C309 9 CAP, SMD, 0603, 0.1µF, 25V, 10%, X7R, ROHS GENERIC 10 C9, C25, C27, C29, C31, C34, C36, C38, C40 9 CAP, SMD, 1812, 10µF, 25V, 20%, ROHS 11 CF11 1 CAP, SMD, 0603, 0.047µF, 25V, 10%, X7R, ROHS GENERIC 12 C8 1 CAP, SMD, 0603, 0.22µF, 25V, 20%, X7R, ROHS GENERIC 13 F325 1 FUSE, SMD, MICROSMD050F RAYCHEM-TYCO 14 J1, J6, J8 3 JACK, BANANA, BLACK, 164-6218 MOUSER 15 J2, J3, J5 3 JACK, BANANA, RED, 164-6219 MOUSER 16 JUSB 1 CONNECTOR, USB, MINI TYPE B MIL-MAX 17 J9, J_PHASE, J_SYSTEM 3 TEST POINT, SCOPE PROBE, 131-5031-00 TEKTRONIX 18 L1 1 INDUCTOR, SMD, 4.7µH, 24A, IHLP5050CE-ER-4R7-M-01 VISHAY/DALE 19 Q_AGATE, Q_BGATE, Q_SGATE 3 MOSFET, P-CHANNEL, SMD, LFPAK, 30V, 40A, HAT1127H RENESAS 20 Q44 1 MOSFET, P-CHANNEL, SMD, SOT23, BSS84TA FAIRCHILD 21 R1 1 RES, SMD, 0603, 3.01kΩ, 1/10W, 1%, TF, ROHS GENERIC 22 R2 1 RES, SMD, 0603, 56.2kΩ, 1/10W, 1%, TF, ROHS GENERIC 23 R3, R24, R25, RF22, R38, R302, R303, R307, R309, R312, R399 11 RES, SMD, 0603, 0Ω, 1/10W, TF, ROHS GENERIC 24 RF11, RF12 2 RES, SMD, 0603, 10, 1/10W, 5%, TF, ROHS GENERIC 25 R17 1 RES, SMD, 0603, 4.7Ω, 1/10W, 5%, TF, ROHS GENERIC 26 R26 27 RF21 1 RES, SMD, 0603, 2.2Ω, 1/10W, 5%, TF, ROHS GENERIC 28 R27 1 RES, SMD, 2010, 0Ω, 1/2W, 5%, TF, ROHS GENERIC 29 R7, R9, R21 3 RES, SMD, 0603, 100kΩ, 1/10W, 1%, TF, ROHS GENERIC 30 R15, R304, R305 3 RES, SMD, 0603, 1kΩ, 1/10W, 1%, TF, ROHS GENERIC 31 R310, R311 2 RES, SMD, 0603, 1.8kΩ, 1/10W, 5%, TF, ROHS GENERIC 32 R11, R12, R13, R61 4 RES, SMD, 0603, 10.0kΩ, 1/10W, 1%, TF, ROHS GENERIC 33 R44 1 RES, SMD, 0603, 33.2Ω, 1/10W, 1%, TF, ROHS GENERIC 34 R6 1 RES, SMD, 0603, 402kΩ, 1/10W, 1%, TF, ROHS GENERIC 35 RS1 1 RES, SMD, 2010, 0.02Ω, 1W, 1%, LRC-LRF2010-01-R020-F IRC 36 RS2 1 RES, SMD, 2010, 0.01Ω, 1W, 1%, LRC-LRF2010-01-R010-F IRC DESCRIPTION MANUFACTURER RES, SMD, 0603, 499Ω, 1/10W, 1%, TF, ROHS 7 AN1826.0 February 22, 2013 Application Note 1826 TABLE 1. ISL9520EVAL1Z, REV A EVALUATION BOARD BILL OF MATERIALS (Continued) NO. REFERENCE DESIGNATOR QTY DESCRIPTION MANUFACTURER 37 TP_ACIN, TP_ACOK, TP_AMON, TP_VFRQ, TP_ICOMP, TP_VCOMP, TP_SMB_RST_N 7 TEST POINT, 0.063”, COMPACT YELLOW, CTP5009 KEYSTONE 38 TP_DCIN, TP_AGATE, TP_BGATE, TP_GND_1, TP_GND2, TP_GND_3, TP_RS1_N, TP_RS2_N, TP_SGATE, TP_GNDA_1, TP_GNDA_2 11 TEST POINT, 0.063”, COMPACT BLACK, CTP5006 KEYSTONE 39 TP_VDD, TP_VBAT, TP_VDDP, TP_VADAPTER, TP_V_SYSTEM 5 TEST POINT, 0.063”, COMPACT RED, CTP5005 KEYSTONE 40 TP304, TP305, TP306, TP_SCL, TP_SDA, TP_VHST, TP_GND_D, TP_RS1_P, TP_RS2_P 9 TEST POINT, 0.063”, COMPACT WHITE, CTP5007 KEYSTONE 41 U1 1 IC, BATTERY CHARGER, ISL9520, QFN50_5X7B_EP INTERSIL 42 U301 1 IC, MICROCONTROLLER, C8051F320, 32LQFP_80 SILICON LABS 8 AN1826.0 Application Note 1826 FIGURE 7. TOP SILKSCREEN 9 AN1826.0 Application Note 1826 FIGURE 8. BOTTOM SILKSCREEN 10 AN1826.0 Application Note 1826 FIGURE 9. TOP LAYER COPPER 11 AN1826.0 Application Note 1826 FIGURE 10. LAYER 2 COPPER 12 AN1826.0 Application Note 1826 FIGURE 11. LAYER 3 COPPER 13 AN1826.0 Application Note 1826 FIGURE 12. BOTTOM LAYER COPPER Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that the Application Note or Technical Brief is current before proceeding. For information regarding Intersil Corporation and its products, see www.intersil.com 14 AN1826.0