ISL6548CRZA Intersil, ISL6548CRZA Datasheet
ISL6548CRZA
Specifications of ISL6548CRZA
Related parts for ISL6548CRZA
ISL6548CRZA Summary of contents
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... REFADJ4 19 DRIVE3 PART NUMBER 18 FB3 ISL6548CRZA (Note) 17 FB4 ISL6548CRZA-T 16 COMP (Note NOTE: Intersil Pb-free plus anneal products employ special Pb-free 14 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. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 ...
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Block Diagram VDDQ P12V R GU EA4 DRIVE4 GMCH DUAL LDO R GL FB4 REFADJ4 P12V EA3 DRIVE3 FB3 P12V EA2 DRIVE2_U FB2 P12V DRIVE2_L 5VSBY S3# S5# FB P12V POR MONITOR AND CONTROL FAULT SOFTSTART & ENABLE A SOFTSTART ...
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Simplified Power System Diagram V DDQ SLP_S3 SLP_S5 GMCH + Q5 V TT_GMCH/CPU + Q6 Typical Application V DDQ_DDR SLP_S5 SLP_S3 GMCH TT_GMCH/CPU Q6 3 ISL6548 12V 5VSBY SLEEP STATE ...
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Absolute Maximum Ratings 5VSBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V ...
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Electrical Specifications Recommended Operating Conditions, Unless Otherwise Noted. Refer to Block and Simplified Power System Diagrams and Typical Application Schematics (Continued) PARAMETER PWM CONTROLLER GATE DRIVERS UGATE and LGATE Source UGATE and LGATE Sink VTT REGULATOR Upper Divider Impedance Lower ...
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Functional Pin Description 5VSBY (Pin 1) 5VSBY is the bias supply of the ISL6548 typically connected to the 5V standby rail of an ATX power supply. During S4/S5 sleep states the ISL6548 enters a reduced power mode and ...
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FB2 (Pin 11) Connect the output of the V TT_GMCH/CPU this pin through a properly sized resistor divider. The voltage at this pin is regulated to 0.8V. This pin is monitored for undervoltage events. DRIVE2 _U (Pin 10) This pin ...
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SLP_S3# SLP_S5# 12V POR 12V 0V V DDQ_DDR 0V V DDQ_DDR V TT_DDR 0V V GMCH_UPPER 0V V GMCH 0V V TT_GMCH/CPU 0V VIDPGD (3 SOFTSTART CYCLES Soft-Start Rise Time Dependent Upon ...
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The digital soft-start for the PWM regulator is accomplished by clamping the error amplifier reference input to a level proportional to the internal digital soft-start voltage. As the soft- start voltage slews up, the PWM comparator generates PHASE pulses of ...
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Fault Counter reaches a count any other time. The 16384 counts that are required to reset the Fault Reset Counter represent 8 soft-start cycles, as one soft-start cycle is 2048 clock ...
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Next are the small signal components which connect to sensitive nodes or supply critical bypass current and signal coupling. A multi-layer printed circuit ...
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DRIVER OSC PWM COMPARATOR - DRIVER ∆V + OSC E REFERENCE ERROR AMP DETAILED COMPENSATION COMPONENTS COMP ISL6548 REFERENCE ...
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The output voltage programming resistor will depend on the value chosen for the feedback resistor and the desired output voltage of the particular regulator. × ---------------------------------- - – V 0.8V DDQ × ...
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Place the small ceramic capacitors physically close to the MOSFETs and between the drain of upper MOSFET and the source of lower MOSFET. The important parameters for the bulk input capacitance are the voltage rating and the RMS ...
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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 ...