ISL6263AEVAL1Z, ISL6263BEVAL1Z Evaluation Boards User Guide ® Application Note August 11, 2009 AN1486.0 Introduction Interface Connections The ISL6263AEVAL1Z and ISL6263BEVAL1Z evaluation boards demonstrate the performance of the ISL6263A and ISL6263B respectively. The ISL6263A and ISL6263B are single-phase synchronous buck PWM controllers, which feature Intersil's Robust Ripple Regulator (R3) technology. The evaluation board design criteria is located in Table 1. An on-board dynamic-load generator is included for evaluating the transient-load response. The dynamic-load applies a 2.5ms pulse of 200mΩ across VOUT and GND every 30ms. • VIN: Input voltage to the power stage of the converter - J6: VIN positive power input - P37: VIN positive voltage sense - J5: VIN return power input - P38: VIN return voltage sense What’s Inside Contents of this document include: • 5V: +5V input voltage for VCC, PVCC, PGOOD-LED and pull-up voltage rail - J1: 5V positive input - J2: 5V return input • Recommended Test Equipment • Interface Connections • Switch Descriptions • 3.3V: +3.3V input voltage for auxiliary circuits - J3: 3.3V positive input - J4: 3.3V return input • Jumper Descriptions • Test Point Descriptions • +12V: +12V input voltage for the dynamic-load generator - J11: 12V positive input - J12: 12V return input • Schematic • Bill of Materials • Silkscreen Plots Jumper Descriptions • Board Layout Plots TABLE 1. EVALUATION BOARD DESIGN CRITERIA PARAMETER VALUE UNITS VIN 5 to 25 VDC VOUT • VOUT: Regulated output voltage from the converter - J14: VOUT positive power output - P5: VOUT positive voltage sense - J13: VOUT return power output - P9: VOUT return voltage sense 0.41200 to 1.28750 VDC DROOP 8 mΩ FULL-LOAD 12 ADC PWM FREQUENCY 300 kHz OCP ~15.5 ADC • (QTY 1) Adjustable 25V, 5A Power Supply • (QTY 1) Fixed 12V, 100mA Power Supply • (QTY 1) Fixed 5V, 100mA Power Supply • (QTY 1) Adjustable 20A Constant Current Electronic Load • (QTY 1) Four-Channel Oscilloscope 1 • J9 − PGOOD circuit 5V input - Shunt jumper installed during normal operation (default) - Shunt jumper can be removed during efficiency tests • J10 − Selects the logic state of the FDE pin - Install shunt jumper across pins 1 and 2 for HIGH - Install shunt jumper across pins 2 and 3 for LOW (default) • J16 − VDD input current measurement port - Shunt jumper installed during normal operation (default) - Shunt jumper replaced by DMM to measure VDD bias current Recommended Equipment • (QTY 1) Digital Multi-Meter • J7 (SRIP) − Selects the logic state of the AF_EN pin - Install shunt jumper across pins 1 and 2 for HIGH - Install shunt jumper across pins 2 and 3 for LOW (default) • J17 − VDD and PVCC input current measurement port - Shunt jumper installed during normal operation (default) - Shunt jumper replaced by DMM to measure VDD bias current and PVCC bias current • J18 − PGOOD and pull-up supply selection - Install shunt jumper across pins 1 and 2 for 5V (default) - Install shunt jumper across pins 2 and 3 for 3.3V (3.3V power supply should be connected to J3 and J4) CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2009. All Rights Reserved All other trademarks mentioned are the property of their respective owners. Application Note 1486 Switch Descriptions • VIDs Test Points: • S1 − VIDs inputs (default <00000>) • S4 − VR_ON (enable) - OFF − Converter is not enabled (default) - ON − Converter is enabled TABLE 2. VID TEST POINT DESCRIPTIONS TEST POINT (SILKSCREEN) FUNCTION DESCRIPTION • S5 − Transient load generator - OFF − Transient load is not enabled (default) - ON − Transient load is enabled Test Point Descriptions • PMON - − IMON test point for ISL6263A - − PMON test point for ISL6263B • P1 (SRIP) − AF_EN • P3 − DROOP − COMP P5 − VOUT positive voltage sense P6 − PGOOD P7 − OCSET P8 − VW P9 − VOUT return voltage sense P11 − VSEN P12 − FB P13 − VSS P14 − SOFT P16 − FDE P17 − VDIFF after R30 network analyzer port P20 − VR_ON P21 − VDIFF P22 (VCCP) − VO P26 − VSS P29 − VIN P30 − VSUM P32 − VDD P34 (+5V) − PVCC P35 − UGATE P36 − LGATE P37 − VIN positive voltage sense P38 − VIN return voltage sense • P4 • • • • • • • • • • • • • • • • • • • • • • • 2 P25 VID4 P27 VID3 P28 VID2 P31 VID1 P33 VID0 − PHASE (for oscilloscope probe) J22 − VOUT positive voltage sense to VOUT return • J20 • voltage sense (for oscilloscope probe) • J23 − Transient load (for oscilloscope probe) Resistor Current Sense Configuration The evaluation board is pre-configured with inductor DCR current sense. It also provides the option of resistor current sense for more precise overcurrent protection and current monitor. Follow the following procedure to configure the resistor current sense: Step 1: Replace R60 with the current sense shunt resistor Step 2: Remove R50 and R53 Step 3: Place R52 and R54 with 0Ω resistors Step 4: Follow the datasheet to configure other resistor current sense and overcurrent protection components. Dynamic Load Generator The evaluation board provides an on-board dynamic load generator for evaluating the transient-load response, which is controlled by switch S4. The dynamic load generator applies a 2.5ms pulse load across VOUT and GND. The transient load slew-rate can be trimmed by adjusting the resistor R74 for the rising edge, and resistor R73 for the falling edge. A +12V power supply is needed to power the dynamic load generator. AN1486.0 August 11, 2009 J9 1 2 100 SD05H0SK 10K R13 R2 510 R1 510 R47 F ON ON ON ON ON P33 S1 RED VID1 5 4 3 2 1 GRN VID0 P31 D3 P28 5V 1 2 P27 VID3 J1 J17 VID2 J2 P25 VID4 10K R10 C31 10UF C30 10 R5 J4 C83 68UF C82 68UF 1UF C32 C5B 10UF C4 P38 PGND J5 R16 22PF 2.21K C27 1UF C26 OPEN OPEN C12 C22 C P7 68PF C15 R21 R4 12.4K C3 P36 10UF C70 10UF C17 C66 C65 10UF C60 10UF 10UF C52 10UF C54 C46 10UF C36 10UF 330UF P5 J22 P9 R27 J13 R20 C6 0 R7 OPEN OPEN R15 P3 0.1UF 4.53K R26 R29 OPEN 3.57K R24 20 C9 560PF R12 R23 4.99K 20 R19 200K R11 C5 180PF 7.5K C13 1000PF 0.1UF 0 C89 R53 C35 R52 OPEN P17 OPEN R54 0 0 R50 0.88UH VOUT C2 Q4 L1 R60 330UF Q2 OPEN 0 C10 C1 0.22UF R48 RTN DROOP DFB VO VSUM VIN VSS VDD 0 R30 J20 OPEN PHASE P21 EP J14 D2 ISL6263AHRZ (ISL6263BHRZ) VID1 VID0 PVCC LGATE PGND PHASE UGATE BOOT Q3 R49 U1 Q1 OPEN RBIAS SOFT OCSET VW COMP FB VDIFF VSEN P11 6.98K P37 150K P12 R3 10UF IRF7821 P35 IRF7821 AF_EN PMON R17 FDE PGOOD SRIP VR_ON I2UA VID4 VID3 VID2 C8 VIN 1K P29 IRF7832 P4 R22 J6 C11 R8 10K 330PF P22 C7 1K P30 1000PF 10K C19 0.082UF C21 C14 C18 0.1UF 1000PF 1000PF C16 OPEN B J11 U5 HIP2100 +12V 1UF C80 ON VSS HO LI HS HI R71 LO HB 49.9K VOUT VDD R74 249 D1 R73 BAT54S IN HUF76129D3S R72 Q15 499 S5 J23 AN1486.0 August 11, 2009 OPEN R9 2N7002 J12 0.2 R6 C81 OFF A 10UF 249 Q14 REV: TITLE: ISL6263AHRZ A (ISL6263BHRZ) ENGINEER: DATE: 07/07/2009 SHEET: 1 OF 1 DRAWN BY: 8 7 6 5 4 3 FIGURE 1. ISL6263AEVAL1Z AND ISL6263BEVAL1Z EVALUATION BOARDS SCHEMATIC 2 1 Application Note 1486 P14 OFF 0.018UF P13 D OPEN OPEN 10K C20 R25 ON S4 J3 P32 R35 0 P8 P34 (IMON) 10K 3.3V 0.068UF R14 1 2 J18 3 1X3 10 1UF P26 C29 10K R32 10K 10K R36 10K R37 10K R18 200K PMON R43 J10 1 2 3 1X3 C28 IMON VR_ON 0.01UF P20 J7 IRF7832 3 AF_EN R38 R40 2N7002 P1 1 2 PGOOD 1 2 3 1X3 R46 1 P6 J16 E R39 FDE OPEN P16 Q5 Application Note 1486 FIGURE 2. ISL6263AEVAL1Z AND ISL6263BEVAL1Z EVALUATION BOARDS PCB TOP SILKSCREEN 4 AN1486.0 August 11, 2009 Application Note 1486 FIGURE 3. ISL6263AEVAL1Z and ISL6263BEVAL1Z EVALUATION BOARDS PCB BOTTOM SILKSCREEN 5 AN1486.0 August 11, 2009 Application Note 1486 FIGURE 4. ISL6263AEVAL1Z and ISL6263BEVAL1Z EVALUATION BOARDS PCB TOP ETCH 6 AN1486.0 August 11, 2009 Application Note 1486 FIGURE 5. ISL6263AEVAL1Z and ISL6263BEVAL1Z EVALUATION BOARDS LAYER 2 ETCH 7 AN1486.0 August 11, 2009 Application Note 1486 FIGURE 6. ISL6263AEVAL1Z and ISL6263BEVAL1Z EVALUATION BOARDS PCB LAYER 3 ETCH 8 AN1486.0 August 11, 2009 Application Note 1486 FIGURE 7. ISL6263AEVAL1Z AND ISL6263BEVAL1Z EVALUATION BOARDS PCB BOTTOM ETCH 9 AN1486.0 August 11, 2009 Application Note 1486 Bill of Materials ISL6263AEVAL1Z and ISL6263BEVAL1Z evaluation boards use the same PCB and schematic, thus the same bill of materials except for the controller. NO. REFERENCE QTY 1 C82, C83 2 CAP, RADIAL, 68µF, 100V, 20%, ALUM.ELECTROLYTIC PANASONIC EEU-FC2A680L 2 C11, C13, C14, C18 4 CAP, SMD, 0603, 1000pF, 16V, 10%, X7R GENERIC NA 3 C28 1 CAP, SMD, 0603, 0.01µF, 16V, 10%, X7R GENERIC NA 4 C15, C21, C35 3 CAP, SMD, 0603, 0.1µF, 25V, 10%, X7R GENERIC NA 5 C27, C29 2 CAP, SMD, 0603, 1µF, 6.3V, 10%, X5R GENERIC NA 6 C5 1 CAP, SMD, 0603, 180pF, 10V, 10%, X7R GENERIC NA 7 C1 1 CAP, SMD, 0603, 0.22µF, 25V, 20%, X7R GENERIC NA 8 C7 1 CAP, SMD, 0603, 330pF, 10V, 5%, NPO GENERIC NA 9 C9 1 CAP, SMD, 0603, 560pF, 10V, 10%, X7R GENERIC NA 10 C12 1 CAP, SMD, 0603, 22pF, 10V, 5%, NPO GENERIC NA 11 C26 1 CAP, SMD, 0603, 68pF, 50V, 5%, NPO GENERIC NA 12 C17 1 CAP, SMD, 0603, 0.068µF, 16V, 10%, X7R GENERIC NA 13 C19 1 CAP, SMD, 0603, 0.082µF, 16V, 10%, X7R GENERIC NA 14 C8 1 CAP, SMD, 0603, 0.018µF, 10V, 10%, X7R GENERIC NA 15 C32, C80 2 CAP, SMD, 0805, 1.0µF, 25V, 10%, X7R GENERIC NA 16 C31, C36, C46, C52, C54, C60, C65, C66, C70 9 CAP, SMD, 0805, 10µF, 6.3V, 10%, X5R GENERIC NA 17 C81 1 CAP, SMD, 1206, 10µF, 16V, 20%, X5R GENERIC NA 18 C4, C5B 2 CAP, SMD, 1812, 10µF, 25V, 10%, X5R GENERIC NA 19 C2, C89 2 CAP, SMD, 330µF, 2V, 20%, SP-CAP PANASONIC EEF-SX0D331XR 20 L1 1 INDUCTOR, SMD, 11.5X10, 0.88µH, 20%, 17.4A NEC/TOKIN MPC1040LR88 21 U5 1 IC-HI FREQ BRIDGE DRIVER, SO8, 100V INTERSIL HIP2100IB 22 U1 1 PWM CONTROLLER, 32P, QFN, 5x5 INTERSIL ISL6263AHRZ or ISL6263BHRZ 23 R24 1 NTC, SMD, 0603, 10k, 1/10W, 5%, B VALUE = 4201k to 4300k PANASONIC ERT-J1VR103J 24 Q5, Q14 2 MOSFET, N-CH, SOT23, 60V, 115mA MOTOROLA 2N7002LT1 25 Q15 1 MOSFET, N-CH, TO-252AA, 30V, 16mΩ FAIRCHILD HUF76129D3S 26 Q1 1 MOSFET, N-CH, SO8, 30V, 9.1mΩ IR IRF7821 27 Q2, Q4 2 MOSFET, N-CH, SO8, 30V, 4.0mΩ IR IRF7832 28 R39 1 RES, SMD, 0603, 1Ω, 1/10W, 1% GENERIC NA 29 R5, R46 2 RES, SMD, 0603, 10Ω, 1/10W, 1% GENERIC NA 30 R11, R12 2 RES, SMD, 0603, 20Ω, 1/16W, 1% GENERIC NA 31 R10, R20, R30, R48, R50, R53 6 RES, SMD, 0603, 0Ω, 1/16W GENERIC NA 32 R47 1 RES, SMD, 0603, 100Ω, 1/10W, 1% GENERIC NA 33 R15, R35 2 RES, SMD, 0603, 1k, 1/10W, 1% GENERIC NA 34 R8, R13, R14, R25, R32, R36, R37, R38, R40, R43 GENERIC NA 10 DESCRIPTION 10 RES, SMD, 0603, 10k, 1/10W, 1%, MFG NAME MFG PART NUMBER AN1486.0 August 11, 2009 Application Note 1486 Bill of Materials ISL6263AEVAL1Z and ISL6263BEVAL1Z evaluation boards use the same PCB and schematic, thus the same bill of materials except for the controller. (Continued) NO. REFERENCE QTY 35 R4 1 RES, SMD, 0603, 12.4k, 1/16W, 1% GENERIC NA 36 R22 1 RES, SMD, 0603, 150k, 1/16W, 1% GENERIC NA 37 R18, R19 2 RES, SMD, 0603, 200k, 1/16W, 1% GENERIC NA 38 R16 1 RES, SMD, 0603, 2.21k, 1/16W, 1% GENERIC NA 39 R73, R74 2 RES, SMD, 0603, 249Ω, 1/16W, 1% GENERIC NA 40 R29 1 RES, SMD, 0603, 3.57k, 1/16W, 1% GENERIC NA 41 R27 1 RES, SMD, 0603, 4.53k, 1/16W, 1% GENERIC NA 42 R72 1 RES, SMD, 0603, 499Ω, 1/16W, 1% GENERIC NA 43 R23 1 RES, SMD, 0603, 4.99k, 1/16W, 1% GENERIC NA 44 R71 1 RES, SMD, 0603, 49.9k, 1/16W, 1% GENERIC NA 45 R1, R2 2 RES, SMD, 0603, 510Ω, 1/16W, 5% GENERIC NA 46 R3 1 RES, SMD, 0603, 6.98k, 1/16W, 1% GENERIC NA 47 R21 1 RES, SMD, 0603, 7.5k, 1/16W, 1% GENERIC NA 48 R60 1 RES, SMD, 2512, 0Ω, 1W, 5% GENERIC NA 49 R6 1 RES, SMD, 2512, 0.2Ω, 1W, 1% DALE WSL-2512-R200F 50 S4, S5 2 SWITCH-TOGGLE, SMD, 1P, SPST C&K COMPONENTS GT11MSCKE 51 S1 1 SWITCH-DIP, SMD, DIP, 5P, SLIDE, SPST C&K COMPONENTS SD05H0SK 52 D1 1 SCHOTTKY, SMD, SOT23, 3P, 30V, 200mA, DUAL DIODE FAIRCHILD BAT54S 53 D3 2 LED, SMD, 3x2.5mm, 4P, RED/GREEN, 12/20MCD, 2V LUMEX SSL-LXA3025IGC-TR 54 C3, C6, C10, C16, C20, C22, C30, R7, R9, R17, R26, R49, R52, R54, D2, Q3 DESCRIPTION MFG NAME MFG PART NUMBER 16 OPEN 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 11 AN1486.0 August 11, 2009