Mixed-signal and digital signal processing ICs | Analog DevicesLTC7067 Datasheet and Product Info | Analog Devices
User Guide for ANALOG DEVICES models including: LTC7067 150V Dual High Side Mosfet Gate Driver, LTC7067, 150V Dual High Side Mosfet Gate Driver, Dual High Side Mosfet Gate Driver, High Side Mosfet Gate Driver, Side Mosfet Gate Driver, Mosfet Gate Driver, Gate Driver, Driver
LTC7067 データシートおよび製品情報 | アナログ・デバイセズ
LTC7067データシートおよび製品情報 | Analog Devices
File Info : application/pdf, 7 Pages, 663.00KB
DocumentDocumentUser Guide EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver General Description The EVAL-LTC7067-AZ features the LTC®7067 in a flexible configuration as a non-synchronous step-down or as a non-synchronous step-up converter. EVAL-LTC7067AZ also has a default set up to test LTC7067 only with a load capacitor. As both Gate returns are floating, LTC7067 can be configured to drive dual-high side MOSFET, or to drive high-side and low-side MOSFET. Typical performance is shown in Table 1. This demo board features LTC7067, 150V Dual high-side MOSFET gate driver with overvoltage and undervoltage protections in a 12-pin MSE package. Refer to the LTC7067 data sheet for more detailed information. Evaluation Circuit Photo Table 1. Performance Summary (TA = 25°C) PARAMETER CONDITIONS MIN VIN_OPT VCC G1IN/G2IN G1 to G1RTN/G2 to G2RTN VCC = 10V 4.5 VCC = 10V -0.3 VCC = 10V 9.4 G1IN/G2IN rising threshold G1IN/G2IN falling threshold 0.5 Propagation delay Rising Falling Rise Time Fall Time VCC = 10V, CLOAD = 3.3nF TYP MAX 140 10 14 5 6 9.6 9.8 1.75 19 21 17 15 UNITS V V V V V V ns ns ns Rev 0; 6/23 © 2023 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. Quick Start Procedure EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver Figure 1. Test Set up Caution: Do not turn on the power supply until all connections are completed. · Connect the power supply to VCC and GND. · Connect one signal generator output to G1IN and GND, another to G2IN and GND. G1 and G2 can be tested altogether or separately. · Turn on the power supply and adjust it to 10V. · Adjust the signal generator to a pulse waveform of 50% duty cycle, 0-5V, 200kHz, turn on the signal generator. · Connect the probes of an oscilloscope to G1/G2 and GND, G1IN/G2IN and GND for waveforms measurement. · Verify the G1/G2 amplitude is 9.6V and follow the G1IN/G2IN inputs duty cycle and frequency. Adjust the frequency/duty cycle of G1IN/G2IN, expect the corresponding change of G1/G2. Test with Default Load Capacitor The board has a default set up to test the driver LTC7067 with load capacitors C5 and C6. The typical value of these capacitors are 3.3nF. Typical waveforms of rising/falling time, propagation delays are below. Figure 2. G1IN and G1 Rising, CLOAD = 3.3nF www.analog.com Figure 3. G2IN and G2 Rising, CLOAD = 3.3nF Analog Devices | 2 EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver Figure 4. G1IN and G1 Falling, CLOAD = 3.3nF Figure 5. G2IN and G2 Falling, CLOAD = 3.3nF Figure 6. VCC Supply Current vs. PWM Inputs Frequency, VCC = 10V, CLOAD = 3.3nF Figure 7. Thermal Picture at VCC =10V, Both G1 and G2 are running at 2MHz, CLOAD = 3.3nF, no forced air flow www.analog.com Analog Devices | 3 EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver Test in Non-synchronous Step-down Converter The EVAL-LTC7067-AZ can be configured as a simple open-loop non-synchronous buck converter. To set up, populate Q1, D3, and cut the copper on D3 to isolate the cathode of D3 from GND, Q1 will be the control MOSFET of buck, and D3 will conduct the freewheeling inductor current when Q1 is off. Set the corresponding duty cycle and frequency of G1IN, populate inductor across Q1 source to VOUT1, and simply short VIN_OPT to Q1 drain. Choose the output capacitors, switching frequency, duty cycle, and sinking current by design. VOUT1 is the output. VIN_OPT is the input, to test EVALLTC7067-AZ in a buck configuration, another power supply connected to VIN_OPT and GND is needed, choose input capacitors by design. Note that the G1_RTN will see VIN_OPT voltage and G1VCC will see VIN_OPT+VCC-VDIODE, where VDIODE is the forward voltage drop of D , both G RTN and G V shouldn't exceed V Figure 8 Test with Buck Converter Set up Test in Non-synchronous Step-up Converter The EVAL-LTC7067-AZ can be configured as a simple open-loop non-synchronous boost converter. To set up, populate Q2, D2. Populate inductor from VIN to Q2 drain. Set the corresponding duty cycle and frequency of G2IN. Choose the output capacitors, switching frequency, duty cycle, and sinking current by design. VOUT2 is the output. VIN_OPT is the input, to test EVAL-LTC7067-AZ in a boost configuration, another power supply connected to VIN_OPT and GND is needed, choose input capacitors by design. FAULT FAULT is an open drain output of an internal N-channel MOSFET, there is a pull-up resistor from FAULT to VCC on board. FAULT will be pulled low during VCC UVLO/OVLO, typical VCC UVLO voltage is 4.3V, VCC OVLO voltage is 14.6V, or over temperature (180°C). After all the faults are cleared, FAULT will be pulled up to VCC. www.analog.com Analog Devices | 4 EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver EVAL-LTC7067-AZ Bill of Materials ITEM QTY DESIGNATOR DESCRIPTION REQUIRED CIRCUIT COMPONENTS 1 1 C1 2 1 C2 CAP CER 1uF 16V 20% X5R 0402 CAP CER 10uF 16V 10% X5R 0805 3 2 C3,C4 CAP CER 1uF 16V 10% X7R 0603 4 2 C5,C6 CAP CER 3300PF 25V 10% X7R 0603 5 2 D5,D6 DIO SCHOTTKY 150V 1A SOD123HE AEC-Q101 6 1 R2 RES SMD 100K Ohm 1% 1/10W 0603 AEC-Q200 7 4 R5,R6,R7,R8 RES SMD 0 Ohm 0603 AECQ200 8 1 U1 IC-ADI 150V DUAL HIGH SIDE MOSFET GATE DRIVER OPTIONAL CIRCUIT COMPONENTS 1 4 C7,C8,C9,C10 2 4 C11,C12,C13,C14 CAP CER 10UF 100V 10% X7S 1210 CAP ALUM ELECT 47UF 100V 20% 12.5X13.5MM AEC-Q200 500MA 5000H 3 2 D1,D2,D3,D4 DIODE SCHOTTKY TMBS 10A 150V SMP 4 2 Q1,Q2 TRAN MOSFET N-CH 150V 56A 8LD TDSON EP HARDWARE FOR DEMO BOARD ONLY 1 11 TP1,TP2,TP3,TP4,TP5,TP6 CONN-PCB SOLDER ,TP7,TP8,TP9,TP10,TP11 TERMINAL TURRETS 2 4 STANDOFF, BRD SPT SNAP FIT 9.53MM LENGTH, EVAL BOARD MTG MANUFACTURER PART NUMBER MURATA GRM155R61C105MA12D MURATA GRM21BR61C106KE15L AVX 0603YC105KAT2A2 WALSIN TECHNOLOGY 0603B332K250CT ONSEMI S115FP PANASONIC ERJ-3EKF1003V VISHAY CRCW0603000ZRT1 ANALOG DEVICES LTC7067RMSE#PBF MURATA GRM32EC72A106KE05L PANASONIC EEV-FK2A470Q VISHAY V10PM15-M3/H INFINEON TECHNOLOGIES BSC160N15NS5ATMA1 MILL-MAX 2501-2-00-80-00-00-07-0 KEYSTONE 8832 www.analog.com Analog Devices | 5 EVAL-LTC7067-AZ Schematic EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver www.analog.com Analog Devices | 6 Revision History REVISION REVISION NUMBER DATE 0 6/23 Initial release EVAL-LTC7067-AZ 150V Dual High-Side MOSFET Gate Driver DESCRIPTION PAGES CHANGED -- www.analog.com Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. Analog Devices | 7