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ISL6568IR

ISL6568IR

  • 厂商:

    RENESAS(瑞萨)

  • 封装:

    VFQFN32_EP

  • 描述:

    IC CTRLR PWM BUCK 2PHASE 32-QFN

  • 数据手册
  • 价格&库存
ISL6568IR 数据手册
DATASHEET ISL6568 FN9187 Rev 5.00 Jan 12, 2012 Two-Phase Buck PWM Controller with Integrated MOSFET Drivers for VRM9, VRM10, and AMD Hammer Applications The ISL6568 two-phase PWM control IC provides a precision voltage regulation system for advanced microprocessors. The integration of power MOSFET drivers into the controller IC marks a departure from the separate PWM controller and driver configuration of previous multi-phase product families. By reducing the number of external parts, this integration is optimized for a cost and space saving power management solution. Outstanding features of this controller IC include programmable VID codes compatible with Intel VRM9,VRM10, as well as AMD Hammer microprocessors. A unity gain, differential amplifier is provided for remote voltage sensing, compensating for any potential difference between remote and local grounds. The output voltage can also be positively or negatively offset through the use of a single external resistor. Features • Integrated Multi-Phase Power Conversion - 1 or 2-Phase Operation • Precision Core Voltage Regulation - Differential Remote Voltage Sensing - ±0.5% System Accuracy Over Temperature - Adjustable Reference-Voltage Offset • Precision Channel Current Sharing - Uses Loss-Less rDS(ON) Current Sampling • Accurate Load Line Programming - Uses Loss-Less Inductor DCR Current Sampling • Variable Gate Drive Bias: 5V to 12V A unique feature of the ISL6568 is the combined use of both DCR and rDS(ON) current sensing. Load line voltage positioning (droop) and overcurrent protection are accomplished through continuous inductor DCR current sensing, while rDS(ON) current sensing is used for accurate channel-current balance. Using both methods of current sampling utilizes the best advantages of each technique. • Microprocessor Voltage Identification Inputs - Up to a 6-Bit DAC - Selectable between Intel’s VRM9, VRM10, or AMD Hammer DAC codes - Dynamic VID-on-the-fly Technology Protection features of this controller IC include a set of sophisticated overvoltage, undervoltage, and overcurrent protection. Overvoltage results in the converter turning the lower MOSFETs ON to clamp the rising output voltage and protect the microprocessor. The overcurrent protection level is set through a single external resistor. Furthermore, the ISL6568 includes protection against an open circuit on the remote sensing inputs. Combined, these features provide advanced protection for the microprocessor and power system. • Multi-tiered Overvoltage Protection FN9187 Rev 5.00 Jan 12, 2012 • Overcurrent Protection • Digital Soft-Start • Selectable Operation Frequency up to 1.5MHz Per Phase • Pb-Free (RoHS Compliant) Page 1 of 30 ISL6568 Pin Configuration VID0 VID1 VID2 FS PGOOD LGATE1 ISEN1 UGATE1 ISL6568 (32 LD QFN) TOP VIEW 32 31 30 29 28 27 26 25 OFS 3 22 VID4 VCC 4 21 VID3 COMP 5 20 ENLL FB 6 19 PHASE2 VDIFF 7 18 BOOT2 RGND 8 17 UGATE2 9 10 11 12 13 14 15 16 ISEN2 PHASE1 PVCC 23 LGATE2 2 IREF REF ISUM BOOT1 ICOMP 24 OCSET 1 VSEN VID12.5 Ordering Information PART NUMBER (Notes 2, 3) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-free) PKG. DWG. # ISL6568CRZ ISL6568CRZ 0 to +70 32 Ld 5x5 QFN L32.5x5 ISL6568CRZ-T (Note 1) ISL6568CRZ 0 to +70 32 Ld 5x5 QFN, Tape and Reel L32.5x5 ISL6568CRZR5184 ISL6568CRZ 0 to +70 32 Ld 5x5 QFN L32.5x5 ISL6568CRZ-TR5184 (Note 1) ISL6568CRZ 0 to +70 32 Ld 5x5 QFN, Tape and Reel L32.5x5 ISL6568CRZAR5184 ISL6568CRZ 0 to +70 32 Ld 5x5 QFN L32.5x5 ISL6568CRZA-TR5184 (Note 1) ISL6568CRZ 0 to +70 32 Ld 5x5 QFN, Tape and Reel L32.5x5 ISL6568IRZ ISL6568IRZ -40 to +85 32 Ld 5x5 QFN L32.5x5 ISL6568IRZ-T (Note 1) ISL6568IRZ -40 to +85 32 Ld 5x5 QFN, Tape and Reel L32.5x5 ISL6568IRZA ISL6568IRZ -40 to +85 32 Ld 5x5 QFN L32.5x5 ISL6568IRZA-T (Note 1) ISL6568IRZ -40 to +85 32 Ld 5x5 QFN, Tape and Reel L32.5x5 NOTES: 1. Please refer to TB347 for details on reel specifications. 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). 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. 3. For Moisture Sensitivity Level (MSL), please see device information page for ISL6568. For more information on MSL please see tech brief TB363. FN9187 Rev 5.00 Jan 12, 2012 Page 2 of 30 ISL6568 Block Diagram ENLL PGOOD ICOMP OCSET 100µA ISEN AMP 0.66V ISUM POWER-ON RESET OC IREF VCC PVCC +1V RGND VSEN BOOT1 SOFT START AND x1 x1 FAULT LOGIC UGATE1 SHOOTTHROUGH PROTECTION GATE CONTROL LOGIC VDIFF PHASE1 UVP LGATE1 0.2V OVP CLOCK AND SAWTOOTH GENERATOR FS OVP VOVP PWM1  BOOT2 +150mV UGATE2 x 0.82  VID4 GATE CONTROL LOGIC PWM2 SHOOTTHROUGH PROTECTION PHASE2 VID3 VID2 VID1 LGATE2 DYNAMIC VID D/A VID0 PHASE 2 DETECT VID12.5 REF E/A FB CHANNEL CURRENT BALANCE COMP OFS 1 N  OFFSET CHANNEL CURRENT SENSE ISEN1 ISEN2 FN9187 Rev 5.00 Jan 12, 2012 GND Page 3 of 30 ISL6568 Typical Application - ISL6568 VDIFF FB COMP VSEN RGND +12V +5V PVCC1 VCC BOOT1 UGATE1 OFS PHASE1 ISEN1 FS REF LGATE1 ISL6568 VID4 VID3 +12V VID2 PVCC2 VID1 LOAD VID0 VID12.5 BOOT2 UGATE2 PGOOD +12V PHASE2 ISEN2 GND LGATE2 ENLL IREF OCSET ICOMP FN9187 Rev 5.00 Jan 12, 2012 ISUM Page 4 of 30 ISL6568 Typical Application - ISL6568 with NTC Thermal Compensation VDIFF FB COMP VSEN RGND +12V +5V PVCC1 VCC BOOT1 UGATE1 OFS PHASE1 ISEN1 FS REF LGATE1 VID4 ISL6568 VID3 +12V VID2 PVCC2 VID1 LOAD VID0 VID12.5 BOOT2 PLACE IN CLOSE PROXIMITY UGATE2 PGOOD +12V PHASE2 ISEN2 NTC GND LGATE2 ENLL IREF OCSET ICOMP FN9187 Rev 5.00 Jan 12, 2012 ISUM Page 5 of 30 ISL6568 Absolute Maximum Ratings Thermal Information Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6V Supply Voltage, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +15V Absolute Boot Voltage, VBOOT . . . . . . . . . . . . . . . . GND - 0.3V to GND + 36V Phase Voltage, VPHASE . . . . . . . . . . . . . . . . GND - 0.3V to 15V (PVCC = 12) GND - 8V ( -----------------------------2C  ESR  2 f 0 V pp L R C = R FB ----------------------------------------0.66 V IN  ESR  0.66V IN  ESR  C C C = -----------------------------------------------2V PP R FB f 0 L FN9187 Rev 5.00 Jan 12, 2012 (EQ. 29) The optional capacitor C2, is sometimes needed to bypass noise away from the PWM comparator (See Figure 20). Keep a position available for C2, and be prepared to install a high-frequency capacitor of between 22pF and 150pF in case any leading edge jitter problem is noted. Output Filter Design The output inductors and the output capacitor bank together to form a low-pass filter responsible for smoothing the pulsating voltage at the phase nodes. The output filter also must provide the transient energy until the regulator can respond. Because it has a low bandwidth compared to the switching frequency, the output filter limits the system transient response. The output capacitors must supply or sink load current while the current in the output inductors increases or decreases to meet the demand. In high-speed converters, the output capacitor bank is usually the most costly (and often the largest) part of the circuit. Output filter design begins with minimizing the cost of this part of the circuit. The critical load parameters in choosing the output capacitors are the maximum size of the load step, I, the load-current slew rate, di/dt, and the maximum allowable output-voltage deviation under transient loading, VMAX. Capacitors are characterized according to their capacitance, ESR, and ESL (equivalent series inductance). At the beginning of the load transient, the output capacitors supply all of the transient current. The output voltage will initially deviate by an amount approximated by the voltage drop across the ESL. As the load current increases, the voltage drop across the ESR increases linearly until the load current reaches its final value. The capacitors selected must have sufficiently low ESL and ESR so that the total output-voltage deviation is less than the allowable maximum. Neglecting the contribution of inductor current and regulator response, the output voltage initially deviates by an amount as shown by Equation 30. di V   ESL  ----- +  ESR  I dt (EQ. 30) The filter capacitor must have sufficiently low ESL and ESR so that V < VMAX. Most capacitor solutions rely on a mixture of high frequency capacitors with relatively low capacitance in combination with Page 24 of 30 ISL6568 bulk capacitors having high capacitance but limited high-frequency performance. Minimizing the ESL of the high-frequency capacitors allows them to support the output voltage as the current increases. Minimizing the ESR of the bulk capacitors allows them to supply the increased current with less output voltage deviation. (EQ. 31) (EQ. 32) (EQ. 33) Switching frequency is determined by the selection of the frequency-setting resistor, RT. Figure 21 and Equation 34 are provided to assist in selecting the correct value for RT. FN9187 Rev 5.00 Jan 12, 2012 FIGURE 21. RT vs SWITCHING FREQUENCY The input capacitors are responsible for sourcing the AC component of the input current flowing into the upper MOSFETs. Their RMS current capacity must be sufficient to handle the ac component of the current drawn by the upper MOSFETs which is related to duty cycle and the number of active phases. 0.3 0.2 0.1 IL(P-P) = 0 IL(P-P) = 0.5 IO IL(P-P) = 0.75 IO 0 0 0.2 0.4 0.6 0.8 1.0 FIGURE 22. NORMALIZED INPUT-CAPACITOR RMS CURRENT FOR 2-PHASE CONVERTER There are a number of variables to consider when choosing the switching frequency, as there are considerable effects on the upper MOSFET loss calculation. These effects are outlined in “MOSFETs” on page 20, and they establish the upper limit for the switching frequency. The lower limit is established by the requirement for fast transient response and small output-voltage ripple as outlined in “Output Filter Design” on page 24. Choose the lowest switching frequency that allows the regulator to meet the transient-response requirements. 10.61 – 1.035 log  f S   10000 DUTY CYCLE (VIN/VO) Switching Frequency R T = 10 1000 Input Capacitor Selection Equation 32 gives the upper limit on L for the cases when the trailing edge of the current transient causes a greater output-voltage deviation than the leading edge. Equation 33 addresses the leading edge. Normally, the trailing edge dictates the selection of L because duty cycles are usually less than 50%. Nevertheless, both inequalities should be evaluated, and L should be selected based on the lower of the two results. In each equation, L is the per-channel inductance, C is the total output capacitance, and N is the number of active channels.  1.25   N  C L  ---------------------------------- V MAX –  I  ESR   V IN – V O    I  2 100 SWITCHINGFREQUENCY (kHz) Since the capacitors are supplying a decreasing portion of the load current while the regulator recovers from the transient, the capacitor voltage becomes slightly depleted. The output inductors must be capable of assuming the entire load current before the output voltage decreases more than VMAX. This places an upper limit on inductance. 2  N  C  VO L  --------------------------------- V MAX –  I  ESR   I  2 100 10 10 INPUT-CAPACITOR CURRENT (IRMS/IO) V – N V  OUT V OUT  IN L   ESR  -----------------------------------------------------------f S V IN V P-P MAX  RT (k) The ESR of the bulk capacitors also creates the majority of the output-voltage ripple. As the bulk capacitors sink and source the inductor ac ripple current (See “Interleaving” and Equation 2 on page 10), a voltage develops across the bulk capacitor ESR equal to IC(P-P) (ESR). Thus, once the output capacitors are selected, the maximum allowable ripple voltage, VP-P(MAX), determines the lower limit on the inductance as shown by Equation 31. 1000 For a two-phase design, use Figure 22 to determine the input-capacitor RMS current requirement set by the duty cycle, maximum sustained output current (IO), and the ratio of the peak-to-peak inductor current (IL(P-P)) to IO. Select a bulk capacitor with a ripple current rating which will minimize the total number of input capacitors required to support the RMS current calculated. The voltage rating of the capacitors should also be at least 1.25x greater than the maximum input voltage. Figure 23 provides the same input RMS current information for single-phase designs. Use the same approach for selecting the bulk capacitor type and number. (EQ. 34) Page 25 of 30 ISL6568 When placing the MOSFETs try to keep the source of the upper FETs and the drain of the lower FETs as close as thermally possible. Input Bulk capacitors should be placed close to the drain of the upper FETs and the source of the lower FETs. Locate the output inductors and output capacitors between the MOSFETs and the load. The high-frequency input and output decoupling capacitors (ceramic) should be placed as close as practicable to the decoupling target, making use of the shortest connection paths to any internal planes, such as vias to GND next or on the capacitor solder pad. INPUT-CAPACITOR CURRENT (IRMS/IO) 0.6 0.4 0.2 IL(P-P) = 0 IL(P-P) = 0.5 IO IL(P-P) = 0.75 IO 0 0 0.2 0.4 0.6 0.8 1.0 DUTY CYCLE (VIN/VO) FIGURE 23. NORMALIZED INPUT-CAPACITOR RMS CURRENT FOR SINGLE-PHASE CONVERTER Low capacitance, high-frequency ceramic capacitors are needed in addition to the input bulk capacitors to suppress leading and falling edge voltage spikes. The spikes result from the high current slew rate produced by the upper MOSFET turn on and off. Select low ESL ceramic capacitors and place one as close as possible to each upper MOSFET drain to minimize board parasitics and maximize suppression. Layout Considerations MOSFETs switch very fast and efficiently. The speed with which the current transitions from one device to another causes voltage spikes across the interconnecting impedances and parasitic circuit elements. These voltage spikes can degrade efficiency, radiate noise into the circuit and lead to device overvoltage stress. Careful component selection, layout, and placement minimizes these voltage spikes. Consider, as an example, the turnoff transition of the upper PWM MOSFET. Prior to turnoff, the upper MOSFET was carrying channel current. During the turnoff, current stops flowing in the upper MOSFET and is picked up by the lower MOSFET. Any inductance in the switched current path generates a large voltage spike during the switching interval. Careful component selection, tight layout of the critical components, and short, wide circuit traces minimize the magnitude of voltage spikes. There are two sets of critical components in a DC/DC converter using a ISL6566 controller. The power components are the most critical because they switch large amounts of energy. Next, are small signal components that connect to sensitive nodes or supply critical bypassing current and signal coupling. The power components should be placed first, which include the MOSFETs, input and output capacitors, and the inductors. It is important to have a symmetrical layout for each power train, preferably with the controller located equidistant from each. Symmetrical layout allows heat to be dissipated equally across all three power trains. Equidistant placement of the controller to the three power trains also helps keep the gate drive traces equally short, resulting in equal trace impedances and similar drive capability of all sets of MOSFETs. FN9187 Rev 5.00 Jan 12, 2012 The critical small components include the bypass capacitors for VCC and PVCC, and many of the components surrounding the controller including the feedback network and current sense components. Locate the VCC/PVCC bypass capacitors as close to the ISL6566 as possible. It is especially important to locate the components associated with the feedback circuit close to their respective controller pins, since they belong to a high-impedance circuit loop, sensitive to EMI pick-up. It is also important to place the current sense components close to their respective pins on the ISL6566, including RISEN, RS, RCOMP, and CCOMP. A multi-layer printed circuit board is recommended. Figure 24 shows the connections of the critical components for the converter. Note that capacitors CxxIN and CxxOUT could each represent numerous physical capacitors. Dedicate one solid layer, usually the one underneath the component side of the board, for a ground plane and make all critical component ground connections with vias to this layer. Dedicate another solid layer as a power plane and break this plane into smaller islands of common voltage levels. Keep the metal runs from the PHASE terminal to output inductors short. The power plane should support the input power and output power nodes. Use copper filled polygons on the top and bottom circuit layers for the phase nodes. Use the remaining printed circuit layers for small signal wiring. Routing UGATE, LGATE, and PHASE Traces Great attention should be paid to routing the UGATE, LGATE, and PHASE traces since they drive the power train MOSFETs using short, high current pulses. It is important to size them as large and as short as possible to reduce their overall impedance and inductance. They should be sized to carry at least one ampere of current (0.02” to 0.05”). Going between layers with vias should also be avoided, but if so, use two vias for interconnection when possible. Extra care should be given to the LGATE traces in particular since keeping their impedance and inductance low helps to significantly reduce the possibility of shoot-through. It is also important to route each channels UGATE and PHASE traces in as close proximity as possible to reduce their inductances. Thermal Management For maximum thermal performance in high current, high switching frequency applications, connecting the thermal GND pad of the ISL6566 to the ground plane with multiple vias is recommended. This heat spreading allows the part to achieve its full thermal potential. It is also recommended that the controller be placed in a direct path of airflow if possible to help thermally manage the part. Page 26 of 30 ISL6568 Suppressing MOSFET Gate Leakage With VCC at ground potential, UGATE is high impedance. In this state, any stray leakage has the potential to deliver charge to the gate of the upper MOSFET. If UGATE receives sufficient charge to bias the device on, a low impedance path will be connected between the upper MOSFET drain and PHASE. If this occurs and the input power supply is present and active, the system could see potentially damaging current. Worst-case leakage currents are on the order of pico-amps; therefore, a 10k resistor, connected from UGATE to PHASE, is more than sufficient to bleed off any stray leakage current. This resistor will not affect the normal performance of the driver or reduce its efficiency. © Copyright Intersil Americas LLC 2004-2012. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets 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. For information regarding Intersil Corporation and its products, see www.intersil.com FN9187 Rev 5.00 Jan 12, 2012 Page 27 of 30 ISL6568 Revision History The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to web to make sure you have the latest revision. DATE REVISION CHANGE January 3, 2012 FN9187.5 Updated to new Intersil format including Intersil standards. New part numbers added to “Ordering Information” on page 2 (ISL6568CRZ, ISL6568CRZ-T) Four obsolete part numbers removed from “Ordering Information” on page 2 (ISL6568IR, ISL6568IR-T, ISL6568CRR5184, ISL6568CR-TR5184) Updated POD L32.5x5 to latest revision with the following changes: Corrected Note 4 from:"Dimension b applies to..." to: "Dimension applies to.." ("b" leftover from when dimensions were in table format) Enclosed Note #'s 4, 5 and 6 in a triangle March 9, 2006 FN9187.4 Changed the Ordering Information on the front page to reflect the new ISL6568 part numbers. Set Customer Portal attributes for Apple July 25, 2005 FN9187.3 1) Rewrote the Layout Considerations Section to flow better and provide a better explanation of proper layout guidelines. 2) Added a "Thermal Management" section to the Layout Considerations section 3) Added a "Suppressing MOSFET Gate Leakage" section to the Layout Considerations section July 11, 2005 FN9187.2 1) Changed Multiple "Gate Drive Resistance" specs on Page 6 2) All "Gate Drive Resistance" specs are now marked "Parameter magnitude guaranteed by design. Not 100% tested." 3) Added a spec to page 5 for "Oscillator Frequency" tolerance 4) Added "DAC Input Low and High" specs for AMD mode to page 5 5) Made a change to the Block Diagram on Page 2: added resistors between the LGATE and PHASE pins 6) Made a change to the Application Diagrams on pages 3 and 4: added a capacitors from the IREF pin to ground 7) Made a slight change to the "Pre-POR Overvoltage Protection" section description October 28, 2004 FN9187.1 Change OFST to OFS throughout October 22, 2004 FN9187.0 Initial release Products Intersil Corporation is a leader in the design and manufacture of high-performance analog semiconductors. The Company's products address some of the industry's fastest growing markets, such as, flat panel displays, cell phones, handheld products, and notebooks. Intersil's product families address power management and analog signal processing functions. Go to www.intersil.com/products for a complete list of Intersil product families. For a complete listing of Applications, Related Documentation and Related Parts, please see the respective device information page on intersil.com: ISL6568 To report errors or suggestions for this datasheet, please go to: www.intersil.com/askourstaff FITs are available from our website at: http://rel.intersil.com/reports/search.php © Copyright Intersil Americas LLC 2004-2012. All Rights Reserved. All trademarks and registered trademarks are the property of their respective owners. For additional products, see www.intersil.com/en/products.html Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted in the quality certifications found at www.intersil.com/en/support/qualandreliability.html Intersil products are sold by description only. Intersil may modify the circuit design and/or specifications of products at any time without notice, provided that such modification does not, in Intersil's sole judgment, affect the form, fit or function of the product. Accordingly, the reader is cautioned to verify that datasheets 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. For information regarding Intersil Corporation and its products, see www.intersil.com FN9187 Rev 5.00 Jan 12, 2012 Page 28 of 30 ISL6568 LOCATE CLOSE TO IC (MINIMIZE CONNECTION PATH) C2 KEY HEAVY TRACE ON CIRCUIT PLANE LAYER RFB ISLAND ON POWER PLANE LAYER C1 VDIFF ISLAND ON CIRCUIT PLANE LAYER R1 FB VIA CONNECTION TO GROUND PLANE COMP +12V VSEN LOCATE NEAR SWITCHING TRANSISTORS; (MINIMIZE CONNECTION PATH) RGND +5V PVCC (CF2) VCC CBIN1 BOOT1 (CF1) CBOOT1 UGATE1 ROFS PHASE1 OFS ISEN1 RISEN1 FS RT LGATE1 REF CREF ISL6568 VID4 VID3 CBOUT +12V VID2 (CHFOUT) CBIN2 VID1 LOAD VID0 BOOT2 VID12.5 CBOOT2 UGATE2 PGOOD +12V LOCATE NEAR LOAD; (MINIMIZE CONNECTION PATH) PHASE2 ISEN2 GND RISEN2 LGATE2 ENLL IREF OCSET ICOMP ISUM RCOMP RS ROCSET CCOMP RS FIGURE 24. PRINTED CIRCUIT BOARD POWER PLANES AND ISLANDS FN9187 Rev 5.00 Jan 12, 2012 Page 29 of 30 ISL6568 Package Outline Drawing L32.5x5 32 LEAD QUAD FLAT NO-LEAD PLASTIC PACKAGE Rev 3, 4/10 4X 3.5 5.00 28X 0.50 A B 6 PIN 1 INDEX AREA 6 PIN #1 INDEX AREA 32 25 1 5.00 24 3 .10 ± 0 . 15 17 (4X) 8 0.15 9 16 TOP VIEW 0.10 M C A B + 0.07 32X 0.40 ± 0.10 4 32X 0.23 - 0.05 BOTTOM VIEW SEE DETAIL "X" 0.10 C 0 . 90 ± 0.1 C BASE PLANE SEATING PLANE 0.08 C ( 4. 80 TYP ) ( ( 28X 0 . 5 ) SIDE VIEW 3. 10 ) (32X 0 . 23 ) C 0 . 2 REF 5 ( 32X 0 . 60) 0 . 00 MIN. 0 . 05 MAX. DETAIL "X" TYPICAL RECOMMENDED LAND PATTERN NOTES: 1. Dimensions are in millimeters. Dimensions in ( ) for Reference Only. 2. Dimensioning and tolerancing conform to AMSE Y14.5m-1994. 3. Unless otherwise specified, tolerance : Decimal ± 0.05 4. Dimension applies to the metallized terminal and is measured between 0.15mm and 0.30mm from the terminal tip. 5. Tiebar shown (if present) is a non-functional feature. 6. The configuration of the pin #1 identifier is optional, but must be located within the zone indicated. The pin #1 indentifier may be either a mold or mark feature. FN9187 Rev 5.00 Jan 12, 2012 Page 30 of 30
ISL6568IR 价格&库存

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