isl6263c Intersil Corporation, isl6263c Datasheet
isl6263c
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isl6263c Summary of contents
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... ISL6263CHRZ ISL6263 CHRZ -10 to +100 32 Ld 5x5 QFN L32.5x5 ISL6263CHRZ-T* ISL6263 CHRZ -10 to +100 32 Ld 5x5 QFN L32.5x5 *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 materials, and 100% matte tin plate plus anneal (e3 termination finish, which is RoHS compliant and compatible with both SnPb and Pb-free soldering operations) ...
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... ISN ICOMP VO VSEN RTN VDIFF VID0 VID1 VID2 VID DAC DVID VID3 ↓ VID4 SOFT FIGURE 1. SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM OF THE ISL6263C VR_ON PGOOD POR VREF PGOOD × − 2 SCP SHORT CIRCUIT + OVERCURRENT UNDERVOLTAGE OVERVOLTAGE FAULT LATCH + − X31 + − ...
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... V OUT V GND R C FSET FSET C COMP1 R C COMP COMP2 R C DIFF2 DIFF R DIFF1 FIGURE 2. ISL6263C GPU CORE VOLTAGE REGULATOR SOLUTION WITH DCR CURRENT SENSE 3 ISL6263C R VDD VDD PVCC RBIAS VIN SOFT UGATE BOOT PGOOD C IMON BOOT PHASE VID<0:4> VR_ON LGATE AF_EN ...
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... V OUT V GND R C FSET FSET C COMP1 R C COMP COMP2 R C DIFF2 DIFF R DIFF1 FIGURE 3. ISL6263C GPU CORE VOLTAGE REGULATOR SOLUTION WITH RESISTOR CURRENT SENSE 4 ISL6263C R VDD VDD PVCC RBIAS VIN SOFT UGATE BOOT PGOOD C IMON BOOT PHASE VID<0:4> VR_ON LGATE AF_EN ...
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... Falling VDD POR Threshold Voltage REGULATION Output Voltage Range VID Voltage Step System Accuracy 5 ISL6263C Thermal Information Thermal Resistance (Typical, Notes 1, 2) θ QFN Package Junction Temperature Range .-55°C to +150°C Operating Temperature Range . . . . . . . . . . . . . . . .-10°C to +100°C Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C Pb-Free Reflow Profile ...
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... LGATE Sink Current (Note 3) UGATE Pull-Down Resistor UGATE Turn-On Propagation Delay LGATE Turn-On Propagation Delay BOOTSTRAP DIODE Forward Voltage Reverse Leakage 6 ISL6263C = -10°C to +100°C, unless otherwise stated +25° 5V, PVCC = 5V. Parameters with MIN and/or MAX limits are 100 SYMBOL ...
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... VID<4:0> Input High FDE Input Low FDE Input High VID<4:0> Leakage FDE Leakage NOTE: 3. Limits established by characterization and are not production tested. 7 ISL6263C = -10°C to +100°C, unless otherwise stated +25° 5V, PVCC = 5V. Parameters with MIN and/or MAX limits are 100 SYMBOL ...
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... VDD pin to the VSS pin. BOOT (Pin 17) - Input power supply for the high-side MOSFET gate driver. Connect an MLCC bootstrap capacitor from the BOOT pin to the PHASE pin. 8 ISL6263C UGATE (Pin 18) - High-side MOSFET gate driver output. Connect to the gate of the high-side MOSFET. current reference. A PHASE (Pin 19) - Current return path for the UGATE high-side MOSFET gate driver ...
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... DAC output voltage is programmed by the external five VID pins. Refer to Table 1 for the VID voltage programming specification. Power-On Reset The ISL6263C is disabled until the voltage at the VDD pin has increased above the rising VDD power-on reset (POR) V threshold voltage. The controller will become ...
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... Processor Kelvin Voltage Sense The remote voltage sense input pins VSEN and RTN of the ISL6263C are to be terminated at the die of the GPU. Kelvin sense allows the voltage regulator to tightly control the processor voltage at the die, compensating for various resistive voltage drops in the power delivery path ...
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... OCP fault when the counter reaches eight. The fastest OCP response for overcurrent levels that are no more than 2.5 times the OCP threshold is 120µs, which is eight counts at 15µs each. The ISL6263C protects against hard shorts by latching an OCP fault within 2µs for overcurrent levels exceeding 2.5 times the OCP threshold. ...
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... V which is 1.545V, the OVPS same reference voltage used by the VID DAC. The ISL6263C will latch UGATE and PGOOD low but unlike other protective faults, LGATE remains high until the voltage between VO and VSS falls below approximately 0.77V, at which time LGATE is pulled low ...
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... Internal Bootstrap Diode The ISL6263C has an integrated boot-strap Schottky diode connected from the PVCC pin to the BOOT pin. Simply adding an external capacitor across the BOOT and PHASE pins completes the bootstrap circuit. 2.0 1.8 1.6 1.4 1.2 1.0 0 100nC GATE 0.6 0.4 0.2 20nC 0.0 0.0 0.1 0.2 0.3 0.4 0.5 ΔV BOOT_CAP FIGURE 7. BOOTSTRAP CAPACITANCE vs BOOT RIPPLE ...
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... Inductor DCR Current Sense ISL6263C provides the option of using the inductor DCR for current sense. To maintain the current sense accuracy, an NTC compensation network is optional when using DCR sense. The process to compensate the DCR resistance variation takes several iterative steps ...
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... Figure 9 shows the equivalent circuit. Since the current sense resistor voltage represents the actual inductor current information, R provide noise filtering. A low ESL sense resistor is strongly recommended for R because this parameter is the most SNS 15 ISL6263C VDD 10µA ↓ R OCSET OCSET ISP ...
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... C range between 330pF to 1000pF and should be placed near the IC. RBIAS The resistor R the ISL6263C using a noise-free current return path to the VSS pin. IMON, SOFT, OCSET COMP, FB, VDIFF, ICOMP, ISP, ISN and VO The traces and components associated with these pins require close proximity to the IC as well as close proximity to each other ...
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... 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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries. For information regarding Intersil Corporation and its products, see www.intersil.com 17 ISL6263C FN6745.0 July 31, 2008 ...
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... Package Outline Drawing L32.5x5 32 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 2, 02/07 5.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( 4. 80 TYP ) ( TYPICAL RECOMMENDED LAND PATTERN 18 ISL6263C ± 0.1 ( 28X (32X 32X 0 . 60) NOTES: 1. Dimensions are in millimeters. Dimensions ...