ISL62881BHRTZ Intersil, ISL62881BHRTZ Datasheet
ISL62881BHRTZ
Specifications of ISL62881BHRTZ
Related parts for ISL62881BHRTZ
ISL62881BHRTZ Summary of contents
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... PART NUMBER (Notes PART MARKING ISL62881HRTZ 628 81HRTZ ISL62881BHRTZ 62881B HRTZ NOTES: 1. Add “-T*” suffix for tape and reel. Please refer to 2. 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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Pin Configurations ISL62881 (28 LD TQFN) TOP VIEW CLK_EN# PGOOD 2 RBIAS GND PAD (BOTTOM) COMP VSEN Pin ...
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UGATE Output of the high-side MOSFET gate driver. Connect the UGATE pin to the gate of the high-side MOSFET. PHASE Current return path for the high-side MOSFET gate driver. Connect the PHASE pin to the node consisting of the high-side ...
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Block Diagram VR_ON MODE CONTROL DPRSLPVR RBIAS VID0 VID1 VID2 DAC AND VID3 SOFT START VID4 VID5 VID6 Σ RTN FB COMP VW Idroop Imon IMON ISUM+ CURRENT SENSE ISUM- 4 ISL62881, ISL62881B VIN VSEN PGOOD CLK_EN# PGOOD AND CLK_EN# ...
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... Ld TQFN Package TQFN Package Maximum Junction Temperature . . . . . . . . . . . . . . . +150°C Maximum Storage Temperature Range . . . -65°C to +150°C Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . .see link below http://www.intersil.com/pbfree/Pb-FreeReflow.asp Recommended Operating Conditions Supply Voltage, VDD . . . . . . . . . . . . . . . . . . . . . +5V ±5% Battery Voltage, VIN . . . . . . . . . . . . . . . . . . . +4.5V to 25V Ambient Temperature . . . . . . . . . . . . . . . -10°C to +100°C Junction Temperature . . . . . . . . . . . . . . . -10° ...
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Electrical Specifications Operating Conditions: V noted. Boldface limits apply over the operating temperature range, -10°C to +100°C. (Continued) PARAMETER SYMBOL POWER GOOD AND PROTECTION MONITORS PGOOD Low Voltage PGOOD Leakage Current PGOOD Delay UGATE DRIVER UGATE Pull-Up Resistance R UGATE ...
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Electrical Specifications Operating Conditions: V noted. Boldface limits apply over the operating temperature range, -10°C to +100°C. (Continued) PARAMETER SYMBOL VID0-VID6 and DPRSLPVR V IH(1.0V) Input High THERMAL MONITOR (For ISL62881B) NTC Source Current Over-Temperature Threshold VR_TT# Low Output Resistance ...
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Gate Driver Timing Diagram PWM t LGFUGR UGATE 1V LGATE t FL Simplified Application Circuits < 0:6 > ...
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Simplified Application Circuits PGOOD CLK_EN# VID<0:6> DPRSLPVR VR_ON VCC VSS IMON FIGURE 2. ISL62881 TYPICAL APPLICATION CIRCUIT USING RESISTOR SENSING ...
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Simplified Application Circuits VR_TT# PGOOD CLK_EN# VID<0:6> DPRSLPVR VR_ON R DROOP VCC SENSE VSS SENSE IMON FIGURE 4. ISL62881B TYPICAL APPLICATION CIRCUIT USING RESISTOR SENSING 10 ISL62881, ISL62881B (Continued) V+5 V VCCP V BIAS DD IN ...
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... PWM pulse is held off until needed. The VW voltage falls as the VW voltage falls, reducing the current PWM pulse width. This kind of behavior gives the ISL62881 excellent response speed. ™ protocol. It uses Intersil patented ™ ) modulator. The R with where gain factor ...
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Diode Emulation and Period Stretching FIGURE 8. DIODE EMULATION ISL62881 can operate in diode emulation (DE) mode to improve light load efficiency. In ...
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V , with the soft-start sequence starting 120µs after DD V crosses the POR threshold. DD Figure 11 shows the typical start-up timing when the ISL62881 is configured for GPU VR application. The ISL62881 uses digital soft-start to ramp-up ...
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TABLE 1. VID TABLE (Continued) VID6 VID5 VID4 VID3 VID2 VID1 VID0 ...
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The current source is used for load line implementation, current monitor and overcurrent protection. Figure 12 shows the load line implementation. The ISL62881 drives a current source I pin, described by Equation 1. 2xV Cn I ----------------- - = droop ...
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Protections The ISL62881 provides overcurrent, undervoltage, and overvoltage protections. The ISL62881 determines overcurrent protection (OCP) by comparing the average value of the droop current I with an internal current source threshold. It droop declares OCP when I is above the ...
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Adaptive Body Diode Conduction Time Reduction In DCM, the controller turns off the low-side MOSFET when the inductor current approaches zero. During on-time of the low-side MOSFET, phase voltage is negative and the amount is the MOSFET R drop, which ...
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... A good NTC network can limit the output voltage drift to within 2mV recommended to follow the Intersil evaluation board layout and current-sensing network parameters to minimize engineering time. V (s) also needs to represent real-time I Cn controller to achieve good transient response ...
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RING BACK FIGURE 17. OUTPUT VOLTAGE RING BACK PROBLEM Rntcs Cn Rntc OPTIONAL OPTIONAL FIGURE 18. OPTIONAL CIRCUITS FOR RING BACK REDUCTION Figure 17 shows the output voltage ring back problem during ...
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Equations 13 through 15 gives V (s) expressions × × sen o Rsen ...
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Current Monitor Referring to Equation 6 for the IMON pin current expression. Refer to Figures 1 and 2, the IMON pin current flows through R . The voltage across R imon Equation 27: × × ...
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Optional Slew Rate Compensation Circuit For 1-Tick VID Transition Rdroop C R vid I FB vid Idroop_vid E/A Σ COMP DAC VDAC X 1 INTERNAL TO IC VID<0:6> Vfb Ivid Vcore Idroop_vid FIGURE 23. OPTIONAL SLEW RATE COMPENSATION CIRCUIT FOR1-TICK ...
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SW1 NTC - + + V R NTC NTC - SW2 1.24V R s 1.20V FIGURE 24. CIRCUITRY ASSOCIATED WITH THE THERMAL THROTTLING FEATURE OF THE ISL62881 When temperature increases, the NTC thermistor resistance decreases so the NTC ...
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TABLE 5. LAYOUT CONSIDERATIONS (Continued) NAME VSEN Place the VSEN/RTN filter (C12, C13) in close proximity of the controller for good decoupling. RTN VDD A capacitor (C16) decouples it to GND. Place it in close proximity of the controller. IMON ...
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VID0 IN VID1 IN VID2 IN VID3 IN VID4 IN VID5 IN VID6 IN VR_ON IN DPRSLPVR IN +3.3V IN PGOOD OUT OPTIONAL 1 ---- CLK_EN# 2 PGOOD R16 3 RBIAS U6 47K 4 VW ---- 5 COMP ISL62881HRZ 6 ...
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VID0 IN VID1 IN VID2 IN VID3 IN VID4 IN VID5 IN VID6 IN VR_ON IN DPRSLPVR IN +3.3V IN CLK_EN# OUT PGOOD OUT OPTIONAL 1 ---- CLK_EN# 2 PGOOD R16 3 RBIAS U6 147K 4 VW ---- 5 COMP ...
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CPU Application Reference Design Bill of Materials QTY REFERENCE VALUE 1 C11 470pF Multilayer Cap, 16V, 10% 1 C12 330pF Multilayer Cap, 16V, 10% 1 C13 1000pF Multilayer Cap, 16V, 10% 1 C15 0.01µF Multilayer Cap, 16V, 10% 2 C16, ...
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... Thick Film Chip Resistor R19 1.91k Thick Film Chip Resistor R26 82.5 Thick Film Chip Resistor ISL62881, ISL62881B DESCRIPTION MANUFACTURER GENERIC GENERIC GENERIC INTERSIL DESCRIPTION MANUFACTURER GENERIC GENERIC GENERIC GENERIC GENERIC GENERIC GENERIC GENERIC GENERIC SANYO GENERIC GENERIC PANASONIC KEMET GENERIC ...
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... R109, R110, DNP R4, R8 IMVP-6.5 PWM Controller 29 ISL62881, ISL62881B DESCRIPTION MANUFACTURER GENERIC GENERIC GENERIC GENERIC GENERIC PANASONIC GENERIC GENERIC GENERIC GENERIC INTERSIL (Continued) PART NUMBER PACKAGE H2511-00R00-1/16W1 SM0603 H2511-03011-1/16W1 SM0603 H2511-01R00-1/16W1 SM0603 H2511-01102-1/16W1 SM0603 H2511-02611-1/16W1 SM0603 ERT-J1VR103J SM0603 H2511-02262-1/16W1 SM0603 H2511-01002-1/16W1 SM0603 ...
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Typical Performance 12V (A) OUT FIGURE 27. CPU APPLICATION CCM EFFICIENCY, VID = 0.9V, ...
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Typical Performance FIGURE 33. CPU MODE SHUT DOWN 0A, VID = 1.2V, Ch1: PHASE, Ch2 FIGURE 35. CCM STEADY STATE, CPU MODE 1A, VID = 1.2375V, Ch1: PHASE, O Ch2 ...
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Typical Performance FIGURE 39. LOAD TRANSIENT RESPONSE WITH OVERSHOOT REDUCTION FUNCTION DISABLED, GPU MODE, V VID = 0.9V 12A/22A, O di/dt = “FASTEST” FIGURE 41. LOAD TRANSIENT RESPONSE WITH OVERSHOOT REDUCTION FUNCTION DISABLED, GPU MODE, V VID = ...
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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. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries ...
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Package Outline Drawing L28.4x4 28 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 9/ PIN 1 INDEX AREA TOP VIEW (3 . 20) PACKAGE BOUNDARY ( 50) TYPICAL RECOMMENDED LAND PATTERN 34 ...
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Package Outline Drawing L32.5x5E 32 LEAD THIN QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 0, 03/09 5.00 6 PIN 1 INDEX AREA (4X) 0.15 TOP VIEW ( 4. 3.50) ( 4.80 ) (3.70 ) TYPICAL RECOMMENDED LAND PATTERN 35 ...