ISL8601 ® Data Sheet PRELIMINARY* March 23, 2007 FN6449.0 *All functional details and specifications are preliminary and subject to change Single-Phase, PMBus-Enabled PWM Controller with Integrated FET Drivers The ISL8601 is a single-phase PWM controller with integrated MOSFET drivers utilizing analog voltage mode control. The ISL8601 features extensive PMBus compliance that enables rapid and flexible power supply design and comprehensive product evaluation and testing. Exceptional flexibility in the customization of operating parameters and system monitoring functions is provided via the large PMBus command set. The ISL8601 supports both low-side MOSFET rDS(ON) and Inductor DCR current sensing. Programmable temperature compensation for sensed current values is provided to ensure maximum accuracy. In addition to the I2C interface, select PMBus commands for the ISL8601 can also be programmed via external resistors, bringing the power and flexibility of PMBus into low-cost power supply systems. • Input Voltage Range: +1.8V to 13.2V • VBIAS Voltage Range: +4.5V to 13.2V • Minimum Output Voltage: +0.5V • ±1.0% System Accuracy Over the Range of -40°C to +85°C When Using the 0.8V Reference • Internal Reference Voltage Programmable from 0.4V to 0.9V in 4mV Steps • Integrated 2A to 4A MOSFET Drivers • External Frequency Synchronization • Selectable Phase Delay: 0°, 90°, 120°, 180°, 240°, or 270° • Precision MOSFET rDS(ON) or Inductor DCR Current Sensing • Voltage Feedforward Compensation Ordering Information PART NUMBER TEMP RANGE (°C) ISL8601IRZ Features -40 to +85 PACKAGE PKG. DWG. # 40 Ld 6x6 QFN L40.6x6 NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets; molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020. • Extensive PMBus Compliance • Broad PMBus Programmability Including Output Voltage, Overvoltage Threshold, Overcurrent Threshold, Overtemperature Threshold, Switching Frequency, TurnOn and Turn-Off • PMBus Monitoring of Load Current, Input Voltage, Output Voltage and Temperature • PMBus Programming Via I2C Interface • Resistor Programming of Select PMBus Parameters Pinout • Operating Frequency Range: 200kHz to 2MHz • Internal and External Temperature Measurement • Overvoltage, Undervoltage and Overtemperature Protection REG5V VFF VBIAS UVLO C50A RCONF1 RCONF2 ROV RADDR THERM ISL8601 (40 LD 6x6 QFN) • Low-Side and High-Side Overcurrent Protection 40 39 38 37 36 35 34 33 32 31 • Programmable Supply Sequencing and Tracking ROSC 1 30 RGND ISENSN 2 29 PGND • Digital Soft-Start with Multiple Soft-Start Modes ISENSP 3 28 LGATE • Multiple Programmable Fault-Handling Modes 27 PVCC • Multiple Prebiased Startup Options N/C 4 GND BOTTOM SIDE PAD N/C 5 LSOC 6 26 PHASE 25 UGATE AGND 7 24 BOOT C25A 8 23 HSOC SS 9 22 DGND COMP 10 21 PGOOD 1 SYNC C25D SMBCLK SMBDAT SMBALRT EN VSENSP VSENSN FB VMON 11 12 13 14 15 16 17 18 19 20 • Differential Remote Voltage Sensing • Power-Good Output with Programmable Delay Applications • Ethernet Routers and Switches • Point-of-Load Modules • Industrial Power Management 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. 2007. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL8601 Functional Block Diagram UVLO EXTERNAL TEMP MEASUREMENT THERM LDO2 INTERNAL TEMP SENSE RCONF1 RCONF2 ROSC VBIAS LDO1 REG5V C50A UVLO DETECT LDO3 RESISTOR DECODE LDO4 C25D C25A ROV RADDR LSOC HSOC CURRENT SENSE 8-BIT MEASUREMENT ADC ISENSP ISENSN SMBDAT SMBCLK PGOOD GENERATOR SERIAL INTERFACE SMBALRT PGOOD MAIN CONTROL LOGIC EN VMON VSENSP DIFA VSENSN AV = 1 VFF UGATE PWM COMP SYNC SS BOOT OSCILLATOR DRIVER CONTROL SOFT-START CIRCUIT PHASE PVCC LGATE 8-BIT DAC 1.024V REFERENCE PGND EA FB COMP AGND DGND RGND 2 FN6449.0 March 23, 2007 ISL8601 Typical Application Circuit +4.5V to +13.2V RVBIAS RREG5V CVBIAS DBOOT CPVCC CREG5V RBOOT RVFF VBIAS REG5V RHSOC PVCC HSOC VFF BOOT RUVLO1 CVFF CHSOC UVLO Q1 UGATE RUVLO2 SYNC LOUT PHASE VOUT EN Q2 PGOOD C50A C25A C50A ISENSP ISENSN C25D C25A RLSOC LSOC SS C25D CLSOC COMP CSS COUT LGATE PGND C2 C3 C1 3 I2C Bus R2 SMBDAT SMBCLK SMBALRT R3 FB R1 VMON RADDR RCONF1 RCONF2 ROSC ROV RADDR RCONF0 RCONF2 ROSC VSENSP CSEN RFB ROS VSENSN THERM ROV AGND DGND RGND RTHERM All Intersil U.S. products are manufactured, assembled and tested utilizing ISO9000 quality systems. Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. 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 data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 3 FN6449.0 March 23, 2007 ISL8601 Package Outline Drawing L40.6x6 40 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 3, 10/06 4X 4.5 6.00 36X 0.50 A B 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 40 31 30 1 6.00 4 . 10 ± 0 . 15 21 10 0.15 (4X) 11 20 0.10 M C A B TOP VIEW 40X 0 . 4 ± 0 . 1 4 0 . 23 +0 . 07 / -0 . 05 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0 . 90 ± 0 . 1 ( C BASE PLANE ( 5 . 8 TYP ) SEATING PLANE 0.08 C SIDE VIEW 4 . 10 ) ( 36X 0 . 5 ) C 0 . 2 REF 5 ( 40X 0 . 23 ) 0 . 00 MIN. 0 . 05 MAX. ( 40X 0 . 6 ) DETAIL "X" TYPICAL RECOMMENDED LAND PATTERN NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension b applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature. 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 indentifier may be either a mold or mark feature. 4 FN6449.0 March 23, 2007