ISL6566CRZ-TR5184 Intersil, ISL6566CRZ-TR5184 Datasheet

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... CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. | 1-888-INTERSIL or 1-888-468-3774 Intersil (and design registered trademark of Intersil Americas Inc. Copyright Intersil Americas Inc. 2004-2006. All Rights Reserved All other trademarks mentioned are the property of their respective owners. ISL6566 FN9178.4 ...

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... Ordering Information PART NUMBER ISL6566CRR5184 ISL6566CR ISL6566CR-TR5184 ISL6566CR ISL6566CRZR5184 (Note) ISL6566CRZ ISL6566CRZ-TR5184 (Note) ISL6566CRZ ISL6566CRZAR5184 (Note) ISL6566CRZ ISL6566CRZA-TR5184 (Note) ISL6566CRZ ISL6566IR ISL6566IR ISL6566IR-T ISL6566IR ISL6566IRZ (Note) ISL6566IRZ ISL6566IRZ-T (Note) ISL6566IRZ ISL6566IRZA (Note) ISL6566IRZ ISL6566IRZA-T (Note) ISL6566IRZ 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 ...

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Block Diagram ICOMP OCSET ISEN AMP ISUM IREF RGND VSEN x1 x1 VDIFF UVP OVP OVP V OVP +150mV x 0.82 VID4 VID3 VID2 DYNAMIC VID VID1 D/A VID0 VID12.5 VRM10 REF E/A FB COMP OFS OFFSET 3 ISL6566 ISL6566 ...

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Typical Application - ISL6566 FB VDIFF VSEN RGND +5V VCC OFS FS REF ISL6566 VID4 VID3 VID2 VID1 VID0 VID12.5 VRM10 PGOOD +12V GND ENLL IREF OCSET ICOMP 4 ISL6566 ISL6566 +12V COMP PVCC1 BOOT1 UGATE1 PHASE1 ISEN1 LGATE1 +12V ...

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Typical Application - ISL6566 with NTC Thermal Compensation FB VDIFF VSEN RGND +5V VCC OFS FS REF ISL6566 VID4 VID3 VID2 VID1 VID0 VID12.5 VRM10 PGOOD +12V GND ENLL IREF OCSET ICOMP 5 ISL6566 ISL6566 +12V COMP PVCC1 BOOT1 UGATE1 ...

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... VCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +5V ±5% PVCC Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +5V to 12V ±5% Ambient Temperature (ISL6566CR, ISL6566CRZ 0°C to 70°C Ambient Temperature (ISL6566IR, ISL6566IRZ .-40°C to 85°C CAUTION: Stress above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied ...

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Electrical Specifications Recommended Operating Conditions, Unless Otherwise Specified. (Continued) PARAMETER ERROR AMPLIFIER DC Gain (Note 3) Gain-Bandwidth Product (Note 3) Slew Rate (Note 3) Maximum Output Voltage Minimum Output Voltage OVERCURRENT PROTECTION OCSET trip current OCSET Accuracy ICOMP Offset PROTECTION ...

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Timing Diagram t PDHUGATE UGATE LGATE t FLGATE Simplified Power System Diagram +12V IN +5V IN 5-6 VID Functional Pin Description VCC VCC is the bias supply for the ICs small-signal circuitry. Connect this pin to a +5V supply and ...

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VID4, VID3, VID2, VID1, VID0, and VID12.5 These are the inputs for the internal DAC that provides the reference voltage for output regulation. These pins respond to TTL logic thresholds. The ISL6566 decodes the VID inputs to establish the output ...

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Operation Multi-Phase Power Conversion Microprocessor load current profiles have changed to the point that the advantages of multi-phase power conversion are impossible to ignore. The technical challenges associated with producing a single-phase converter that is both cost-effective and thermally viable ...

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... Channel-current balance is achieved by comparing the sampled current of each channel to the cycle average current, and making the proper adjustment to each channel pulse width based on the error. Intersil’s patented current- balance method is illustrated in Figure 3, with error correction for channel 1 represented. In the figure, the cycle ...

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I L PWM SWITCHING PERIOD I SEN SAMPLING PERIOD OLD SAMPLE CURRENT TIME FIGURE 4. SAMPLE AND HOLD TIMING The ISL6566 supports MOSFET r DS(ON) sample each channel’s current for channel-current balance. The internal circuitry, shown in Figure 5 represents ...

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TABLE 2. AMD HAMMER VOLTAGE IDENTIFICATION CODES VID4 VID3 VID2 VID1 ...

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... DAC) and offset errors in the OFS current source, remote-sense and error amplifiers. Intersil specifies the guaranteed tolerance of the ISL6566 to include the combined tolerances of each of these elements. ...

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As shown in Figure 6, a voltage, V DROOP total current in all active channels, I OUT differential remote-sense amplifier. The resulting voltage at the output of the remote-sense amplifier is the sum of the output voltage and the droop ...

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VDIFF + V R OFS FB VREF - FB I OFS OFS ISL6566 R OFS GND FIGURE 8. POSITIVE OFFSET OUTPUT VOLTAGE PROGRAMMING VDIFF - V R OFS FB VREF + FB I OFS VCC R OFS OFS ISL6566 FIGURE ...

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Advanced Adaptive Zero Shoot-Through Deadtime Control (Patent Pending) The integrated drivers incorporate a unique adaptive deadtime control technique to minimize deadtime, resulting in high efficiency from the reduced freewheeling time of the lower MOSFET body-diode conduction, and to prevent the ...

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ISL6566 INTERNAL CIRCUIT POR CIRCUIT ENABLE COMPARATOR + - 0.66V SOFT-START AND FAULT LOGIC FIGURE 11. POWER SEQUENCING USING THRESHOLD- SENSITIVE ENABLE (ENLL) FUNCTION 2. The voltage on ENLL must be above 0.66V. The ENLL input allows for power sequencing ...

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Fault Monitoring and Protection The ISL6566 actively monitors output voltage and current to detect fault conditions. Fault monitors trigger protective measures to prevent damage to a microprocessor load. One common power good indicator is provided for linking to external system ...

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... ISL6566 power converter assumed that the reader is familiar with many of the basic skills and techniques referenced below. In addition to this guide, Intersil provides complete reference designs that include schematics, bills of materials, and example board layouts for all common microprocessor applications. Power Stages The first step in designing a multi-phase converter is to determine the number of phases ...

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UPPER MOSFET POWER CALCULATION In addition to r losses, a large portion of the upper- DS(ON) MOSFET losses are due to currents conducted across the input voltage (V ) during switching. Since a substantially IN higher portion of the upper-MOSFET ...

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PVCC HI2 LGATE LO2 GI2 G2 FIGURE 16. TYPICAL LOWER-GATE DRIVE TURN-ON PATH The total gate drive power losses are dissipated among the resistive components along the transition path and in the bootstrap ...

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Then the resistor R must be chosen to set the current S sense network gain, obtaining the desired full load droop voltage. Follow the steps below to choose the component values for this R-C network. 1. Choose an arbitrary value ...

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Fortunately, there is a simple approximation that comes very close to an optimal solution. Treating the system as though it were a voltage-mode regulator, by compensating the L-C poles and the ESR zero of the voltage mode approximation, yields a ...

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Since the capacitors are supplying a decreasing portion of the load current while the regulator recovers from the transient, the capacitor voltage becomes slightly depleted. The output inductors must be capable of assuming the entire load current before the output ...

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L, 0 0. 0.2 0.4 0.6 DUTY CYCLE (V IN FIGURE 24. NORMALIZED INPUT-CAPACITOR RMS CURRENT FOR SINGLE-PHASE CONVERTER Low capacitance, high-frequency ...

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Thermal Management For maximum thermal performance in high current, high switching frequency applications, connecting the thermal GND pad of the ISL6566 to the ground plane with multiple vias is recommended. This heat spreading allows the part to achieve its full ...

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VDIFF VSEN RGND +5V VCC (CF1) R OFS OFS FS REF REF ISL6566 VID4 VID3 VID2 VID1 VID0 VID12.5 VRM10 PGOOD +12V GND ENLL IREF OCSET ICOMP R ...

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... 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 ...