ISL6560CB-T Intersil, ISL6560CB-T Datasheet
ISL6560CB-T
Specifications of ISL6560CB-T
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ISL6560CB-T Summary of contents
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... Ordering Information PART NUMBER TEMP. (°C) PACKAGE ISL6560CB SOIC ISL6560CB SOIC Tape and Reel ISL6560CBZ SOIC (See Note) (Pb-free) ISL6560CBZ SOIC Tape and Reel (Pb-free) (See Note) ...
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Block Diagram PWRGD VID4 VID3 VID2 D/A VID1 VID0 FB COMP Simplified Power System Diagram FB SYNCHRONOUS PWM 1 RECTIFIED BUCK CHANNEL ISL6560 SYNCHRONOUS PWM 2 RECTIFIED BUCK CHANNEL VID Functional Pin Description VID4 VID3 VID2 ...
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Absolute Maximum Ratings Supply Voltage (VCC -0.3V to 15V CS+. CS ...
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Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted PARAMETER Input Bias Current Maximum Output Voltage Output Disable Threshold FB Low Foldback Threshold -3dB Bandwidth CURRENT SENSE Threshold Voltage Current Limit Foldback Voltage ∆V /∆V COMP CS Input Bias Current Response ...
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ISL6560 5 FN9011.3 ...
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General Circuit Description R SENSE INPUT VOLTAGE CS+ + Current Comparator RESET COMP R L Reference Voltage REF FIGURE 1. FUNCTIONAL SYSTEM BLOCK DIAGRAM SHOWING MAJOR COMPONENTS The ISL6560 is a two-power channel, current mode PWM controller with input current ...
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Also observe as the output load demand increases, driving the inverting input of the error amplifier lower, the output voltage of the error amplifier ...
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Design Example This section will highlight a 40A converter, providing the design details for the entire supply. The hardware realization of this design is the ISL6560/62 Evaluation Board. For this example a 40A supply down converting from 12V will be ...
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Frequency = Channel fsw 1 0.1 0.01 100nH 1µH Inductance FIGURE 6. INDUCTOR SELECTION CURVES These curves help to visualize that in some cases, major changes in some parameters only result in subtle changes in other parameters. For example, ...
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To calculate the dissipation in the 5mΩ resistor, we used only half of the ripple current, 4A, to give a nominal dissipation of: 1. ------------ RMS 12V 2 2 ∴ × × Power = ...
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MOSFET Selection and Considerations In high-current PWM applications, the MOSFET power dissipation, package selection and heatsink are the dominant design factors. The power dissipation includes two loss components; conduction loss and switching loss. These losses are distributed between the upper ...
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Current sense is critical, especially at lower current levels where the current comparator threshold voltage is lower. A good Kelvin connection requires that the voltage sample must be taken at the R SENSE not at the planes to which ...
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ISL6560 Supply Design Sequence Please note several changes from the computations in the body of the data sheet. An operating frequency of 400kHz was chosen. A 15mV offset voltage was added to the no- load output voltage to show the ...
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