ISL6567CRZ Intersil, ISL6567CRZ Datasheet
ISL6567CRZ
Specifications of ISL6567CRZ
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ISL6567CRZ Summary of contents
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... Pb-Free (RoHS Compliant) Ordering Information PART NUMBER PART (Note) MARKING ISL6567CRZ 65 67CRZ ISL6567CRZ-T* 65 67CRZ ISL6567IRZ 65 67IRZ ISL6567IRZ-T* 65 67IRZ ISL6567EVAL1Z Evaluation Platform *Please refer to TB347 for details on reel specifications. NOTE: These Intersil Pb-free plastic packaged products employ special Pb-free material sets, molding compounds/die attach ...
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Pinout 2 ISL6567 ISL6567 ISL6567 (24 LD QFN) TOP VIEW RGND VSEN 2 MON GND VDIFF COMP ...
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Block Diagram MON 300mV + 110% - 90% VCC 10µA 10µA OVP COMP 120% REFTRK REFERENCE VDIFF RGND X1 VSEN VCC VREG SHUNT LINEAR REGULATOR PGOOD FS EN VCC 20µA OSCILLATOR POWER-ON RESET (POR) PWM1 SOFT-START ...
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Simplified Power System Diagram PGOOD Typical Application SHUNT C F1 VCC VREG REFTRK MON R PG PGOOD COMP VDIFF R1 4 ...
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... Recommended Operating Conditions Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . +4.9V to +5.5V Ambient Temperature ISL6567CRZ 0° to +70°C ISL6567IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. ...
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Electrical Specifications Operating Conditions: V MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. (Continued) PARAMETER External Reference DC Amplitude Range External Reference DC Offset Range ERROR AMPLIFIER AND ...
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Timing Diagram t PDHUGATE UGATE LGATE t FLGATE Functional Pin Description VCC (Pin 8) Bias supply for the IC’s small-signal circuitry. Connect this pin supply and locally decouple using a quality 0.1µF ceramic capacitor. This pin is ...
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For more information, refer to “External Reference Operation” on page 14. EN (Pin 9) This pin is a precision-threshold (approximately 0.6V) enable pin. Pulled above the threshold, the pin enables the controller for operation, initiating a soft-start. Normally a high ...
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FS (Pin 22) This pin is used to set the switching frequency. Connect a resistor from this pin to ground and size it according to FS the graph in Figure 1 or Equation ⋅ ( ...
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Operation Figure 2 shows a simplified diagram of the voltage regulation and current loops. The voltage loop is used to precisely regulate the output voltage, while the current feedback is used to balance the output currents, I power channels. VOLTAGE ...
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... All things being equal, in order to fully realize the thermal advantage important that each channel in a multi-phase converter be controlled to deliver about the same current at any load level. Intersil’s ISL6567 ensure current balance by comparing each channel’s current to the average current delivered by both channels and making appropriate adjustments to each channel’ ...
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SS pin starts to output a small current which charges the external capacitor connected to this pin internal reference clamp controlled by the potential at the SS pin releases the reference to the input ...
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SETTING THE OUTPUT VOLTAGE The ISL6567 uses a precision internal reference voltage to set the output voltage. Based on this internal reference, the output voltage can thus be set from 0. level determined by the input voltage, ...
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... ISL6567 Make note that, in these equations, V reference of the MON comparator (300mV). Intersil recommends the MON threshold is set to be tripped when the external reference voltage reaches at least 90% of the final DC value. Since PGOOD and OVP monitoring are relative to the external reference magnitude important to ...
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MON pin’s functionality can be used to indicate when a desired threshold has been reached (either by monitoring the reference itself, or the output voltage controlled by the ISL6567). By default, when operating in external-reference mode and desiring PGOOD monitoring ...
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OVERVOLTAGE PROTECTION Although the normal feedback loop operation naturally counters overvoltage (OV) events the ISL6567 benefits from a secondary, fixed threshold overvoltage protection. Should the output voltage exceed 120% of the reference, the lower MOSFETs are turned on. Once turned ...
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... It is assumed that the reader is familiar with many of the basic skills and techniques referenced in the following. In addition to this guide, Intersil provides complete reference designs that include schematics, bills of materials, and example board layouts for typical applications. ...
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V (V) INmin FIGURE 19. NORMALIZED RESISTOR VALUE IN PASSIVE CONFIGURATION; V VCC Figure 20 details the normalized maximum power dissipation R will be subject to in the ...
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ISL6567 may require to drive the switching MOSFETs. ISL6567 EXTERNAL CIRCUIT PVCC POR CIRCUIT VCC E VREF VREG SHUNT ...
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Figure 23. Use the following guidelines for locating the 3 poles and zeros of the compensation network: 1. Select a value for R (1kΩ to 5kΩ, typically). Calculate 1 value for R for desired converter bandwidth (F ...
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In high-speed converters, the output capacitor bank is amongst the costlier (and ...
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The power components should be placed first. Locate the input capacitors close to the power switches. Minimize the length of the connections between the input capacitors, C and the power switches. Locate the output inductors and output capacitors between the ...
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Size the trace interconnects commensurate with the signals they are carrying. Use narrow (0.005” to 0.008”) and short traces for the high-impedance, small-signal connections, such as the feedback, compensation, soft-start, frequency set, enable, reference track, etc. The wiring traces from ...
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Lastly, the conduction loss part of the upper MOSFET’s power dissipation, P can be calculated using UMOS,4, Equation 30 ⎛ ⎞ ⎜ OUT ⎟ --------- - ------------- ( ) UMOS ...
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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 ...
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Package Outline Drawing L24.4x4C 24 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 10/06 4.00 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 26 ISL6567 ...