ISL6552CB Intersil, ISL6552CB Datasheet
ISL6552CB
Specifications of ISL6552CB
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ISL6552CB Summary of contents
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... QFN - Quad Flat No Leads - Package Outline - Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile • Pb-free available Ordering Information PART NUMBER TEMP. ( ISL6552CB ISL6552CBZ (See Note) ISL6552CR ISL6552CRZ (See Note) *Add “-T” suffix to part number for tape and reel packaging. ...
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... Pinouts ISL6552CB (20 LEAD SOIC TOP VIEW 1 VID3 2 VID2 3 VID1 4 VID0 5 VID25mV 6 COMP FS/DIS 9 GND 10 VSEN 2 ISL6552 20 VCC 19 PGOOD 18 PWM4 17 ISEN4 16 ISEN1 15 PWM1 14 PWM2 13 ISEN2 12 ISEN3 11 PWM3 ISL6552CR (20 LEAD 5x5 QFN) TOP VIEW VID1 1 15 VID0 VID25mV GND COMP ISEN4 ISEN1 PWM1 ...
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Block Diagram VSEN X 0.9 X1.15 COMP VID3 VID2 VID1 D/A VID0 VID25mV FB 3 ISL6552 PGOOD VCC POWER-ON RESET (POR LATCH CLOCK AND S SAWTOOTH GENERATOR OVP + + ∑ SOFT- + ∑ ...
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... Simplified Power System Diagram VSEN PWM 1 PWM 2 ISL6552 PWM 3 PWM 4 VID Functional Pin Description ISL6552CB (20 LEAD SOIC) 1 VID3 2 VID2 3 VID1 4 VID0 5 VID25mV 6 COMP FS/DIS 9 GND 10 VSEN ISL6552CR (20 LEAD 5x5 QFN VID1 1 VID0 2 3 VID25mV GND COMP ISL6552 SYNCHRONOUS RECTIFIED BUCK CHANNEL ...
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ISEN1, ISEN2, ISEN3 and ISEN4 Current sense inputs from the individual converter channel’s phase nodes. Unused sense lines MUST be left open. Typical Application - 2 Phase Converter Using HIP6601 Gate Drivers +5V FB COMP VCC VSEN PWM4 PWM3 PGOOD ...
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Typical Application - 4 Phase Converter Using HIP6602 Gate Drivers FB COMP VCC VSEN ISEN1 PWM1 PGOOD VID3 PWM2 ISEN2 VID2 MAIN VID1 CONTROL ISL6552 VID0 VID25mV ISEN3 FS/DIS PWM3 PWM4 ISEN4 GND 6 ISL6552 +12V BOOT1 UGATE1 VCC PHASE1 ...
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Absolute Maximum Ratings Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+7V ...
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ERROR AMPLIFIER CORRECTION - ∑ PROGRAMMABLE REFERENCE + DAC ∑ AVERAGE - + ∑ ∑ CORRECTION FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6552 VOLTAGE AND CURRENT CONTROL LOOPS FOR ...
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Droop Compensation In addition to control of each power channel’s output current, the average channel current is also used to provide CORE voltage “droop” compensation. Average full channel ...
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Figure 3 shows the start-up sequence as initiated by a fast rising 5V supply, VCC applied to the ISL6552. Note the , short rise to the three state level in PWM 1 output during first 32 PWM cycles. Figure 4 ...
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If the conditions that caused the over-voltage still persist, the PWM outputs will be cycled between three state and V clamped to ground hysteretic shunt regulator. Under-Voltage The VSEN pin ...
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COMP FB SAWTOOTH ERROR GENERATOR AMPLIFIER CORRECTION + - + - DIFFERENCE REFERENCE DAC TO OTHER CHANNELS TO OVER + CURRENT - TRIP COMPARATOR FIGURE 7. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM SHOWING CURRENT AND VOLTAGE ...
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This droop compensation allows larger transient voltage deviations and thus reduces the size and cost of the output filter components. R should be selected to give the desired “droop” voltage at IN the normal full ...
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... Careful component selection, tight layout of the critical components, and short, wide circuit traces minimize the magnitude of voltage spikes. Contact Intersil for evaluation board drawings of the component placement and printed circuit board. There are two sets of critical components in a DC-DC converter using a ISL6552 controller and a HIP6601 gate driver ...
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ESR (effective series resistance) and voltage rating requirements rather than actual capacitance requirements. High frequency decoupling capacitors should be placed as close to the power pins of the load as physically possible. Be careful not to add inductance in ...
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... The diode's rated reverse breakdown voltage must be greater than the maximum input voltage. References Intersil documents are available on the web at www.intersil.com/ [1] HIP6601/HIP6603 Data Sheet, Intersil Corporation, File No. 4819 [2] HIP6602 Data Sheet, Intersil Corporation, File No. 4838 2 × × × × I ...
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Small Outline Plastic Packages (SOIC) N INDEX 0.25(0.010) H AREA E - SEATING PLANE - -C- α µ 0.10(0.004) 0.25(0.010 NOTES: 1. Symbols are defined in ...
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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 ...