ISL6554CB Intersil, ISL6554CB Datasheet
ISL6554CB
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ISL6554CB Summary of contents
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... Ordering Information PART NUMBER ISL6554CB ISL6554CB-T ISL6554CBZ (Note) ISL6554CBZ-T (Note) ISL6554CBZA (Note) ISL6554CBZA-T (Note) NOTE: Intersil Pb-free products employ special Pb-free material sets; VCC molding compounds/die attach materials and 100% matte tin plate PGOOD termination finish, which are RoHS compliant and compatible with PWM4 both SnPb and Pb-free soldering operations ...
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Block Diagram VSEN X 0.9 X1.15 COMP VID4 VID3 VID2 D/A VID1 VID0 FB GND 2 ISL6554 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 ISL6554 PWM 3 PWM 4 VID Functional Pin Description 1 VID4 2 VID3 3 VID2 4 VID1 5 VID0 6 COMP FS/DIS 9 GND 10 VSEN VID4 (Pin ...
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Typical Application - 2 Phase Converter Using HIP6601 Gate Drivers +5V FB COMP VCC VSEN PWM4 PWM3 PGOOD PWM2 VID4 VID3 PWM1 MAIN VID2 CONTROL ISL6554 VID1 VID0 NC ISEN4 ISEN3 NC FS/DIS ISEN2 ISEN1 GND 4 ISL6554 +12V BOOT ...
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Typical Application - 4 Phase Converter Using HIP6602 Gate Drivers FB COMP VCC VSEN ISEN1 PWM1 PGOOD VID4 PWM2 ISEN2 VID3 MAIN VID2 CONTROL ISL6554 VID1 VID0 ISEN3 FS/DIS PWM3 PWM4 ISEN4 GND 5 ISL6554 +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 - I AVERAGE - + ∑ ∑ CORRECTION FIGURE 1. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6554 VOLTAGE AND CURRENT CONTROL LOOPS FOR ...
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Applications and Converter Start-Up Each PWM power channel’s current is regulated. This enables the PWM channels to accurately share the load current for enhanced reliability. The HIP6601, HIP6602 or HIP6603 MOSFET driver interfaces with the ISL6554. For more information, see ...
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DELAY TIME V = 12V IN FIGURE 3. START- PHASE SYSTEM OPERATING AT 500kHz DELAY TIME V = 12V IN FIGURE 4. START- PHASE SYSTEM OPERATING AT 200kHz V = 5V, CORE LOAD CURRENT = 31A ...
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PGOOD also goes “low” during this time due to VSEN going below its threshold voltage. To lower the average output dissipation, the soft-start initial wait time is increased from 32 to 2048 cycles, then the soft-start ramp is initiated. ...
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COMP FB SAWTOOTH ERROR GENERATOR AMPLIFIER CORRECTION + - + - DIFFERENCE REFERENCE DAC TO OTHER CHANNELS COMPARATOR TO OVER + CURRENT - TRIP REFERENCE FIGURE 7. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM SHOWING CURRENT AND ...
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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 ISL6554 controller and a HIP6601 gate driver ...
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Use the remaining printed circuit layers for small signal wiring. The wiring traces from the driver IC to the MOSFET gate and source should be sized ...
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IN LOCATE NEXT TO IC PIN(S) VCC C BP COMP C T ISL6554 R FB LOCATE NEXT PIN R IN VSEN KEY ISLAND ON POWER PLANE LAYER FIGURE 12. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS ...
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... The diode’s rated reverse breakdown voltage must be greater than the maximum input voltage. 15 ISL6554 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 × × ...
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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 ...