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ISL6567CRZ

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ISL6567CRZ

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Part Number ISL6567CRZ
Manufacturer Renesas Electronics America
Description IC REG CTRLR BUCK 24QFN
Datasheet ISL6567CRZ Datasheet
Package 24-VFQFN Exposed Pad
In Stock 10,490 piece(s)
Unit Price Request a Quote
Lead Time Can Ship Immediately
Estimated Delivery Time Jan 30 - Feb 4 (Choose Expedited Shipping)
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Part Number # ISL6567CRZ (PMIC - Voltage Regulators - DC DC Switching Controllers) is manufactured by Renesas Electronics America and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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ISL6567CRZ Specifications

ManufacturerRenesas Electronics America
CategoryIntegrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Controllers
Datasheet ISL6567CRZDatasheet
Package24-VFQFN Exposed Pad
Series-
Output TypeTransistor Driver
FunctionStep-Down
Output ConfigurationPositive
TopologyBuck
Number of Outputs2
Output Phases2
Voltage - Supply (Vcc/Vdd)4.9 V ~ 5.5 V
Frequency - Switching200kHz ~ 2MHz
Duty Cycle (Max)66%
Synchronous RectifierYes
Clock SyncNo
Serial Interfaces-
Control FeaturesEnable, Frequency Control, Soft Start
Operating Temperature0°C ~ 70°C (TA)
Package / Case24-VFQFN Exposed Pad
Supplier Device Package24-QFN-EP (4x4)

ISL6567CRZ Datasheet

Page 1

Page 2

FN9243 Rev 4.00 August 9, 2011 ISL6567 Multipurpose Two-Phase Buck PWM Controller with Integrated MOSFET Drivers DATASHEETThe ISL6567 two-phase synchronous buck PWM control IC provides a precision voltage regulation system for point-of-load and other high-current applications requiring an efficient and compact implementation. Multi-phase power conversion is a marked departure from single phase converter configurations employed to satisfy the increasing current demands of various electronic circuits. By distributing the power and load current, implementation of multi-phase converters utilize smaller and lower cost transistors with fewer input and output capacitors. These reductions accrue from the higher effective conversion frequency with higher frequency ripple current resulting from the phase interleaving inherent to this topology. Outstanding features of this controller IC include an internal 0.6V reference with a system regulation accuracy of 0.6%, an optional external reference input, and user-adjustable switching frequency. Precision regulation is further enhanced by the available unity-gain differential amplifier targeted at remote voltage sensing capability, while output regulation is monitored and its quality is reported via a PGOOD pin. Also included is an internal shunt regulator with optional external connection capability which extends the operational input voltage range. For applications requiring voltage tracking or sequencing, the ISL6567 offers a host of possibilities, including coincidental, ratiometric, or offset tracking, as well as sequential start-ups, user adjustable for a wide range of applications. Protection features of this controller IC include overvoltage and overcurrent protection. Overvoltage results in the converter turning the lower MOSFETs ON to clamp the rising output voltage. The ISL6567 uses cost and space-saving rDS(ON) sensing for channel current balance, dynamic voltage positioning, and overcurrent protection. Channel current balancing is automatic and accurate with the integrated current-balance control system. Overcurrent protection can be tailored to various application with no need for additional parts. Features • Integrated Two-Phase Power Conversion - Integrated 4A Drivers for High Efficiency • Shunt Regulator for Wide Input Power Conversion - 5V and Higher Bias - Up to 20V Power-Down-Conversion • Precision Channel Current Sharing - Loss-Less Current Sampling - Uses rDS(ON) • Precision Output Voltage Regulation - 0.6% System Accuracy Over-Temperature (Commercial Range) • 0.6V Internal Reference • Full Spectrum Voltage Tracking - Coincidental, Ratiometric, or Offset • Sequential Start-up Control • Adjustable Switching Frequency - 150kHz to 1.5MHz • Fast Transient Recovery Time • Unity-Gain Differential Amplifier - Increased Voltage Sensing Accuracy • Overcurrent Protection • Overvoltage Protection • Start-up into Pre-Charged Output • Small, QFN Package Footprint • Pb-Free (RoHS Compliant) Ordering Information PART NUMBER (Notes 1, 2, 3) PART MARKING TEMP. RANGE (°C) PACKAGE (Pb-Free) PKG. DWG. # ISL6567CRZ 65 67CRZ 0 to +70 24 Ld 4x4 QFN L24.4x4C ISL6567IRZ 65 67IRZ -40 to +85 24 Ld 4x4 QFN L24.4x4C NOTE: 1. Add “-T*” suffix for tape and reel. 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 ISL6567. For more information on MSL please see techbrief TB363.FN9243 Rev 4.00 Page 1 of 26 August 9, 2011

Page 3

ISL6567Pin Configuration ISL6567 (24 LD QFN) TOP VIEW RGND VDIFF VSEN MON FB COMP V R E G V C C E N B O O T 2 U G A T E 2 P H A S E 2 R E F T R K S S F S P G O O D B O O T 1 U G A T E 1 PVCC LGATE2 PHASE1 ISEN1 LGATE1 ISEN2 1 2 3 4 5 6 18 17 16 15 14 13 24 23 22 21 20 19 7 8 9 10 11 12 25 GNDFN9243 Rev 4.00 Page 2 of 26 August 9, 2011

Page 4

F N 9 24 3 R e v 4 .0 0 P ag e 3 of 2 6 A u gu st 9, 2 011 IS L6 5 67BOOT1 PHASE1 LGATE1 UGATE1 GND PHASE2 LGATE2 UGATE2 BOOT2Block Diagram SOFT-START COMP FB REFERENCE AND FAULT LOGIC   CONTROL LOGIC GATE CONTROL GATE CONTROL CURRENT CORRECTION + - OC EA PWM1 PWM2 OVP ISEN1 PVCCVCCENPGOOD ISEN2 FS REFTRK VDIFF RGND VSEN X1 MON VREG OSCILLATOR 300mV + - VCC SS 10µA VCC 20µA VCC 20µA/1mA 20µA 10µA 110% 90% REGULATOR SHUNT LINEAR POWER-ON RESET (POR) 120%

Page 5

ISL6567Simplified Power System Diagram Typical Application CHANNEL1 VIN VOUT Q1 Q2 ISL6567 CHANNEL2 Q3 Q4 EN PGOOD ISL6567 VIN Q1 Q2 Q3 Q4 COMP FB GND VCC BOOT1 BOOT2 UGATE1 UGATE2 LGATE1 LGATE2 LIN LOUT1 CHFIN1 CBIN1 CHFIN2 CBIN2 CBOOT1 CBOOT2 LOUT2 CHFOUT CBOUT RISEN1 R2 R1 C2 C1 CF1 PHASE1 PHASE2 VOUT RGND PVCC CF2 PGOOD EN VREG RSHUNT ISEN1 RISEN2 ISEN2 VSENVDIFF RS MON SS REFTRK FS RFS RP CSS RPG R4 R5FN9243 Rev 4.00 Page 4 of 26 August 9, 2011

Page 6

ISL6567Absolute Maximum Ratings Thermal Information Supply Voltage, VCC, PVCC . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V Shunt Regulator Voltage, VVREG. . . . . . . . . . . . . . . . . . . . . . . -0.3V to +6.5V Boot Voltage, VBOOT . . . . . . . . . . . . . . . . . . . . . PGND - 0.3V to PGND + 27V PHASE Voltage . . . . . . . . . . . . . . . . . . . . . GND - 0.3V (DC) to VBOOT + 0.3V . . . . . . . . . . . . . . . . GND - 5V (<100ns Pulse Width, 10µJ) to VBOOT + 0.3V UGATE Voltage. . . . . . . . . . . . . . . . . . . . VPHASE - 0.3V (DC) to VBOOT + 0.3V . . . . . . . . . . . . . VPHASE - 4V (<200ns Pulse Width, 20µJ) to VBOOT + 0.3V LGATE Voltage . . . . . . . . . . . . . . . . . . . . . . . . GND - 0.3V (DC) to VVCC + 0.3V . . . . . . . . . . . . . . . . . . GND - 2V (<100ns Pulse Width, 4µJ) to VVCC + 0.3V Input, Output, or I/O Voltage . . . . . . . . . . . . . . . . . GND - 0.3V to VCC + 0.3V Recommended Operating Conditions Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .+4.9V to +5.5V Ambient Temperature ISL6567CRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0° to +70°C ISL6567IRZ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40°C to +85°C Thermal Resistance JA (°C/W) JC (°C/W) QFN Package (Notes 4, 5) . . . . . . . . . . . . . . 43 7 Ambient Operating Temperature Range . . . . . . . . . . . . . . . -40°C to +85°C 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 CAUTION: Do not operate at or near the maximum ratings listed for extended periods of time. Exposure to such conditions may adversely impact product reliability and result in failures not covered by warranty. NOTES: 4. JA is measured in free air with the component mounted on a high effective thermal conductivity test board with “direct attach” features. See Tech Brief TB379. 5. For JC, the “case temp” location is the center of the exposed metal pad on the package underside. Electrical Specifications Operating Conditions: VCC = 5V, TJ = -40°C to +85°C, unless otherwise specified. Boldface limits apply over the operating temperature range. PARAMETER TEST CONDITIONS MIN (Note 8) TYP MAX (Note 8) UNITS BIAS SUPPLY AND INTERNAL OSCILLATOR Input Bias Supply Current IVCC; EN > 0.7V; LGATE, UGATE open - 7.6 9 mA Rising VCC POR (Power-On Reset) Threshold 4.30 4.40 4.50 V VCC POR Hysteresis 0.46 0.51 0.58 V Rising PVCC POR Threshold 3.60 3.67 3.75 V Shunt Regulation VVCC; IVREG = 0mA to 120mA 4.90 5.10 5.35 V Maximum Shunt Current IVREG_MAX 120 - - mA Switching Frequency (Per Channel; Note 7) FSW 200 - 2000 kHz Frequency Tolerance FSW -10 - 10 % Oscillator Peak-to-Peak Ramp Amplitude VOSC - 1.4 - V Maximum Duty Cycle dMAX - 66 - % CONTROL THRESHOLDS EN Threshold - 0.65 - V EN Hysteresis Current - 20 - µA MON Power-Good Enable Threshold VMON_TH 290 305 320 mV MON Hysteresis Current - 10 - µA SOFT-START SS Current ISS - 22 - µA SS Ramp Amplitude 0.55 - 3.60 V SS Threshold for Output Gates Turn-Off 0.40 - - VFN9243 Rev 4.00 Page 5 of 26 August 9, 2011

Page 7

ISL6567REFERENCE AND DAC System Accuracy (Commercial Temp. Range) -0.6 - 0.6 % System Accuracy (Industrial Temp. Range) -0.8 - 0.8 % Internal Reference VREF - 0.6 - V External Reference DC Amplitude Range VREFTRK (DC) 0.1 - 2.3 V External Reference DC Offset Range VREFTRK (DC) offset -4.5 - 4.5 mV ERROR AMPLIFIER AND REMOTE SENSING DC Gain (Note 6) RL = 10k to ground - 80 - dB Gain-Bandwidth Product (Note 6) CL = 10pF - 95 - MHz Slew Rate (Note 6) CL = 10pF - 30 - V/s Maximum Output Voltage No load 4.0 - - V Minimum Output Voltage No load - - 0.7 V VSEN, RGND Input Resistance 140 225 - k POWER-GOOD PGOOD Rising Lower Threshold - 92 - % PGOOD Rising Upper Threshold - 112 - % PGOOD Threshold Hysteresis - 2.5 - % PROTECTION Overcurrent Trip Level 80 103 120 A Overvoltage Threshold VDIFF Rising - 122 - % Overvoltage Hysteresis VDIFF Falling - 5.5 - % SWITCHING TIME UGATE Rise Time (Note 6) tRUGATE; VVCC = 5V, 3nF Load - 8 - ns LGATE Rise Time (Note 6) tRLGATE; VVCC = 5V, 3nF Load - 8 - ns UGATE Fall Time (Note 6) tFUGATE; VVCC = 5V, 3nF Load - 8 - ns LGATE Fall Time (Note 6) tFLGATE; VVCC = 5V, 3nF Load - 4 - ns UGATE Turn-On Non-overlap (Note 6) tPDHUGATE; VVCC = 5V, 3nF Load - 8 - ns LGATE Turn-On Non-overlap (Note 6) tPDHLGATE; VVCC = 5V, 3nF Load - 8 - ns OUTPUT Upper Drive Source Resistance 100mA Source Current - 1.0 2.5  Upper Drive Sink Resistance 100mA Sink Current - 1.0 2.5  Lower Drive Source Resistance 100mA Source Current - 1.0 2.5  Lower Drive Sink Resistance 100mA Sink Current - 0.4 1.0  NOTES: 6. Parameter magnitudes should be considered typical and are not production tested. 7. Not a tested parameter; range provided for reference only. 8. Parameters with MIN and/or MAX limits are 100% tested at +25°C, unless otherwise specified. Temperature limits established by characterization and are not production tested. Electrical Specifications Operating Conditions: VCC = 5V, TJ = -40°C to +85°C, unless otherwise specified. Boldface limits apply over the operating temperature range. (Continued) PARAMETER TEST CONDITIONS MIN (Note 8) TYP MAX (Note 8) UNITSFN9243 Rev 4.00 Page 6 of 26 August 9, 2011

Page 8

ISL6567Timing Diagram Functional Pin Description VCC (Pin 8) Bias supply for the IC’s small-signal circuitry. Connect this pin to a 5V supply and locally decouple using a quality 0.1µF ceramic capacitor. This pin is monitored for POR purposes. VCC bias may be applied in the absence of PVCC bias. PVCC (Pin 15) Power supply pin for the MOSFET drives. Connect this pin to a 5V supply and locally decouple using a quality 1µF ceramic capacitor. This pin is monitored for POR purposes. PVCC bias should not be applied in the absence of VCC bias. VREG (Pin 7) This pin is the output of the internal shunt regulator. The internal shunt regulator monitors and regulates the voltage at the VCC pin. In applications where the chip bias, (including that necessary to drive the external MOSFETs), is below the current rating of this pin, connect it to VCC and PVCC, then connect this node to the input supply via a properly sized resistor. Should the input voltage vary over a wide range and/or the bias current required exceed the intrinsic capability of the on-board regulator, use this pin in conjunction with an external NPN transistor and a couple of resistors to create a more flexible bias supply for the ISL6567. In any configuration, pay particular attention to the chip’s limitations in terms of both current sinking capability of the shunt regulator, as well as the internal power dissipation. For more information, refer to “Bias Supply Considerations” on page 16. GND (Pin 25) Connect this pad to the circuit ground using the shortest possible path (one to four vias to the internal ground plane, placed on the soldering pad are recommended). All internal small-signal circuitry, as well as the lower gates’ return paths are referenced to this pin. REFTRK (Pin 24) This pin represents an optional reference input, as well as a clamp voltage for the internal reference. If utilizing the ISL6567’s internal 0.6V reference, and desire no special tracking features enabled, electrically connect this pin to the VCC pin, or leave it open. Internal or external reference operation mode is dictated by the MON pin. While operating in internal reference mode, this pin represents an internal reference clamp that can be used for implementation of various tracking features. In this operating mode, a small internal current is sourced on this pin, pulling it high if left open. If utilizing the ISL6567 in conjunction with an external reference, connect the desired stimulus to this pin; the sensed output of the ISL6567 converter follows this input. While operating with an external reference, the power-good and overvoltage protection functions are disabled while the MON pin voltage is below its threshold (typically 300mV). MON (Pin 3) The status of this pin is checked every time the chip is enabled or POR is released; should its potential be lower than 3.5V (typical), the REFTRK potential is assumed to be an externally- provided reference and the ISL6567 proceeds to regulate the sensed output voltage to this external reference. When operating using the internal reference voltage, connect this pin to VCC (to bypass the mechanism previously described). While operating with an externally-provided reference, connect this pin to a properly-sized resistor divider off the voltage to be monitored. PGOOD and OVP functions are enabled when this pin exceeds its monitored threshold (typically 300mV). This pin is normally floating (high impedance input) until it exceeds its detect threshold. Once the threshold is exceeded, a small current is sourced on this pin; this current, along with a properly sized resistor network, allows the user to adjust the threshold hysteresis. For more information, refer to “External Reference Operation” on page 13. EN (Pin 9) This pin is a precision-threshold (approximately 0.6V) enable pin. Pulled above the threshold, the pin enables the controller for operation, initiating a soft-start. Normally a high impedance input, once it is pulled above its threshold, a small current is sourced on this pin; this current, along with a properly sized UGATE LGATE tFLGATE tPDHUGATE tRUGATE tFUGATE tPDHLGATE tRLGATEFN9243 Rev 4.00 Page 7 of 26 August 9, 2011

Page 9

ISL6567resistor network, allows the user to adjust the threshold hysteresis. Pulled below the falling threshold, this pin disables controller operation, by ramping down the SS voltage and discharging the output. RGND, VSEN, and VDIFF (Pins 1, 2, and 4) The inputs and output of the on-board unity-gain operational amplifier intended for differential output sensing. Connect RGND and VSEN to the output load’s local GND and VOUT, respectively; VDIFF will reflect the load voltage referenced to the chip’s local ground. Connect the feedback network to the voltage thus reflected at the VDIFF pin. Should the circuit not allow implementation of remote sensing, connect the VSEN and RGND pins to the physical place where voltage is to be regulated. Connect the resistor divider setting the output voltage at the input of the differential amplifier. To minimize the error introduced by the resistance of differential amplifier’s inputs, select resistor divider values smaller than 1k. VDIFF is monitored for overvoltage events and for PGOOD reporting purposes. FB and COMP (Pins 5 and 6) The internal error amplifier’s inverting input and output respectively. These pins are connected to the external network used to compensate the regulator’s feedback loop. ISEN1, ISEN2 (Pins 17, 13) These pins are used to close the current feedback loop and set the overcurrent protection threshold. A resistor connected between each of these pins and their corresponding PHASE pins determine a certain current flow magnitude during the lower MOSFET’s conduction interval. The resulting currents established through these resistors are used for channel current balancing and overcurrent protection. Use Equation 1 to select the proper RISEN resistor: where: rDS(ON) = lower MOSFET drain-source ON-resistance () IOUT = channel maximum output current (A) Read “Current Loop” page 9, “Channel-Current Balance” page 11, and “Overcurrent Protection” on page 11 for more information. UGATE1, UGATE2 (Pins 19, 11) Connect these pins to the upper MOSFETs’ gates. These pins are used to control the upper MOSFETs and are monitored for shoot-through prevention purposes. Minimize the impedance of these connections. Maximum individual channel duty cycle is limited to 66%. BOOT1, BOOT2 (Pins 20, 10) These pins provide the bias voltage for the upper MOSFETs’ drives. Connect these pins to appropriately-chosen external bootstrap capacitors. Internal bootstrap diodes connected to the PVCC pins provide the necessary bootstrap charge. Minimize the impedance of these connections. PHASE1, PHASE2 (Pins 18, 12) Connect these pins to the sources of the upper MOSFETs. These pins are the return path for the upper MOSFETs’ drives. Minimize the impedance of these connections. LGATE1, LGATE2 (Pins 16, 14) These pins are used to control the lower MOSFETs and are monitored for shoot-through prevention purposes. Connect these pins to the lower MOSFETs’ gates. Minimize the impedance of these connections. SS (Pin 23) This pin allows adjustment of the output voltage soft-start ramp rate, as well as the hiccup interval following an overcurrent event. The potential at this pin is used as a clamp voltage for the internal error amplifier’s non-inverting input, regulating its rate of rise during start-up. Connect this pin to a capacitor referenced to ground. Small internal current sources linearly charge and discharge this capacitor, leading to similar variation in the ramp up/down of the output voltage. While below 0.3V, all output drives are turned off. As this pin ramps up, the drives are not enabled but only after the first UGATE pulse emerges (avoid draining the output, if pre-charged). If no UGATE pulse are generated until the SS exceeds the top of the oscillator ramp, at that time all gate operation is enabled, allowing immediate draining of the output, as necessary. SS voltage has a ~0.7V offset above the reference clamp, meaning the reference clamp rises from 0V with unity gain correspondence as the SS pin exceeds 0.7V. For more information, please refer to “Soft-Start” on page 11. FS (Pin 22) This pin is used to set the switching frequency. Connect a resistor, RFS, from this pin to ground and size it according to the graph in Figure 1 or Equation 2:RISEN rDS ON  IOUT 50A --------------------------------------= (EQ. 1) RFS 10 10.61 1.035 FSW log –  = (EQ. 2) FIGURE 1. SWITCHING FREQUENCY vs RFS VALUE 100k 200k 500k 1M 2M SWITCHING FREQUENCY (Hz) R F S V A L U E (  ) 10k 20k 50k 100k 200kFN9243 Rev 4.00 Page 8 of 26 August 9, 2011

Page 10

ISL6567PGOOD (Pin 21) This pin represents the output of the on-board power-good monitor. Thus, the FB pin is monitored and compared against a window centered around the available reference; an FB voltage within the window disables the open-collector output, allowing the external resistor to pull-up PGOOD high. Approximate pull-down device impedance is 65. While operating with an external reference, the power-good function is enabled once the MON pin amplitude exceeds its monitored threshold (typically 300mV). Operation Figure 2 shows a simplified diagram of the voltage regulation and current loops. The voltage loop is used to precisely regulate the output voltage, while the current feedback is used to balance the output currents, IL1 and IL2, of the two power channels. VOLTAGE LOOP Feedback from the output voltage is fed via the on-board differential amplifier and applied via resistor R1 to the inverting input of the Error Amplifier. The signal generated by the error amplifier is summed up with the current correction error signal and applied to the positive inputs of the PWM circuit comparators. Out-of-phase sawtooth signals are applied to the two PWM comparators inverting inputs. Increasing error amplifier voltage results in increased duty cycle. This increased duty cycle signal is passed to the output drivers with no phase reversal to drive the external MOSFETs. Increased duty cycle, translating to increased ON-time for the upper MOSFET transistor, results in increased output voltage, compensating for the low output voltage which lead to the increase in the error signal in the first place. CURRENT LOOP The current control loop is only used to finely adjust the individual channel duty cycle, in order to balance the current carried by each phase. The information used for this control is the voltage that is developed across rDS(ON) of each lower MOSFET, while they are conducting. A resistor converts and scales the voltage across each MOSFET to a current that is applied to the current sensing circuits within the ISL6567. Output from these sensing circuits is averaged and used to compute a current error signal. Each PWM channel receives a current signal proportional to the difference between the average sensed current and the individual channel current. When a PWM channel’s current is greater than the average current, the signal applied via the summing correction circuit to the PWM comparator reduces the output pulse width (duty cycle) of the comparator to compensate for the detected above average current in the respective channel. MULTI-PHASE POWER CONVERSION Multi-phase power conversion provides a cost-effective power solution when load currents are no longer easily supported by single-phase converters. Although its greater complexity FIGURE 2. SIMPLIFIED BLOCK DIAGRAM OF THE ISL6567 VOLTAGE AND CURRENT CONTROL LOOPS AVERAGE    REFERENCE PWM CIRCUIT PWM CIRCUIT HALF-BRIDGE DRIVE HALF-BRIDGE DRIVE OSCILLATOR COMP FB L1 L2 COUT VOUT VIN VIN RISEN2 UGATE1 UGATE2 LGATE1 LGATE2 ISEN1 ISEN2 CURRENT SENSE R1 R2 C1 PHASE1 CURRENT SENSE PHASE2 RISEN1 ISL6567 VDIFF VSEN RGNDFN9243 Rev 4.00 Page 9 of 26 August 9, 2011

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Chri*****e Sen

December 15, 2020

Good communication and fast shipping! Recommended!

Bost*****eonard

December 15, 2020

They work great and I hope to find more used for the extra ones.

Isha*****agar

November 28, 2020

All of the components worked, and are still working. So even though the price is amazingly low, the diodes really do work!

Rory*****ters

November 25, 2020

The best choice, clear and easy to make an order. Gives me full control.

Els*****ravis

November 23, 2020

Absolutely awesome, quick delivery, perfect product exactly as described!

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