Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Gate drivers for high power applications モータコントロールLSI商品開発部 高耐圧パワー開発課 稲井 慎也 Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Development History 2008年2月 国内 Car OEMと SiC駆動用絶縁ゲートドライバ 共同開発開始 1 2014年4月 EV/HEV走行用 インバータ向け 量産開始 2012年5月 絶縁ゲートドライバ プレスリリース 2011年3月 共同開発完了 2008 2009 2008年2月 要素技術開発開始 ・絶縁素子 ・パッケージ ・ゲートドライブ技術 2010 2011 2010年6月 量産向け製品開発開始 2013年2月 蓄電装置向け 量産開始 2012 2013 ・I/O delay 150ns ・基礎絶縁 2500Vrms ・I/O delay 350ns Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved 2015年6月 パワーコンディショナ向け 量産開始 (予定) 2014年12月 産業機器向け 量産開始 (予定) 2014 2015 ・強化絶縁 3750Vrms (予定) ・フライバック コントローラ内蔵 ・温度モニタ内蔵 ・I/O delay 90ns Applications 2 < Example in use for EV・HEV > To be used for driving High-voltage MOSFET and IGBT in High current / High voltage application units ⇒ Inverters / DCDC converters / Electric compressors for AC / Battery chargers EV/HEV system example Common inverter diagram Battery module Confidential Inverter Motor c 2014 ROHM Co.,Ltd. All Rights Reserved Single chip realized with on-chip transformer technology Gate Driver Main Technology 3 Typical 3-phase inverter circuit Isolator GD GD GD GD: Gate Driver Motor GD GD GD Integrated SSOP-B20W Isolated ・ Much Smaller ・ Little Temperature Dependence ・ Supporting Higher Temperature We can provide small-packaged gate drivers integrated isolators Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Details of our Isolation Technology Low Voltage SSOP-B20W High Voltage Cu Island Cu Coil Bonding PAD Coreless Transformer Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved 4 Time to Fail (0.1%) of our 2500Vrms Isolation 5 Time to Fail on using @400Vrms (Viorm=560Vpeak) = 2.4*107 years Time to Fail (years) f=60Hz Ta=125℃ y = 2.0E+9e-0.0111x R² = 0.905 Estimated by TDDB experimental data (TDDB: Time Dependent Dielectric Breakdown) Input to Output Voltage (Vrms) Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Robustness against Magnetic Field 6 z I Estimated by theoretical calculation Maximum Allowable Magnetic Flux Density [kGauss] Distance Maximum Allowable Current / Time [kA/μs] xy Magnetic Field Frequency [kHz] Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved 26kA/μs Distance from the center of the coil [mm] Technology Roadmap 7 2014 2015 MP 2500Vrms Isolation Voltage (1min) 3750Vrms Development Release 8.0mm SOP16WM 8.0mm SSOP-B20W 6.2mm SSOP-B28W 8.0mm MP Development 5000Vrms SSOP-B10W 2016 Development Release MP MP Release Packages I/O delay 120ns I/O delay 90ns Core technology Release Release Release MP MP MP Temp Monitor Release MP Flyback controller Release MP Ready Output Confidential MP c 2014 ROHM Co.,Ltd. All Rights Reserved Release MP Release Gate Driver Product Lineup 8 Negative Power Supply Output State Feedback RDY Output Flyback Controller Soft Turn OFF 2.5 120 A － B － － － － － － － BM60015FV IND -B10W 3.75 90 A － B － － － － － － BM60016FV AM/ IND -B10W TBD 90 A － B － － － － － － MP ES: Available － CS: Sep/2015 TBD － BM6101FV AM/ IND -B20W 2.5 350 － A E A A S － － － A MP BM6102FV AM/ IND -B20W 2.5 200 － － E A A S － － － A MP BM6104FV AM/ IND BM6108FV IND -B20W 2.5 150 A A E A A － A － － A Ready for MP BM6105FW IND SOP16WM 2.5 95 A A B A － － － A － A ES: Available CS: Oct/2014 BM60051FV AM/ IND -B28W 2.5 260 － － B － A M A － A A CS: Available BM60052FV AM/ IND -B28W 2.5 120 A A B A － S A A A A ES: Available CS: Dec/2014 BM60054FV AM/ IND -B28W 2.5 120 A A B A A A A A ES: Available CS: Mar/2015 Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved A Temp S/M INA/INB Prevention -B20W Short Current Delay Time [ns] (max) AM/ IND DESAT Isolation [kVrms] BM60014FV Miller Clamp ITEM PKG [SSOP-] FEATURES Grade AM: Automotive IND: Industrial Complex driver Simple driver A: Available ,－: Not available B: Built-in, E: External NchMOSFET S: Shut down, M: Monitor output S Status BM6104FV/ BM6108FV Mass Production 9 ⑦ GND1 INA OSFB ⑥ Latch INB ENA FLTRLS S Q R ② INA FB VEE2 + - OUT1L OUT1H Timer FLT ④ VCC1 FLT PROOUT + - UVLO ⑨ VCC2 UVLO ③ LOGIC Regulator VREG ⑧ OUT2 S ENA R TEST1 GND1 Isolation High Speed Safety Gate Drive Confidential GND2 Q LOGIC ① + - ⑤ VEE2 SCPIN ⑩ ：①2,500Vrms ：I/O delay < 150ns, Min. input pulse = 90ns ：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥OSFB ⑦Soft turn off, ⑧active Miller Clamping ：⑨3A separated output (OUT1H/ OUT1L), ⑩Negative VEE c 2014 ROHM Co.,Ltd. All Rights Reserved What’s Miller Current ? 10 I_Miller：Miller Current C：Miller Capacitance M2:OFF⇒ON Gate Driver VDS I_Miller C Gate Driver VGS I_Miller M1:OFF VDS GND VGS VEE The faster VDS switches L ⇒ H, the larger I_Miller is. And if VGS is raised above Vt, the MOSFET M1 turns on unexpectedly. Gate driver must prevent this unexpedted turning on of SiC MOSFET, We adopted active Miller clamping and negative power supply (VEE). Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Active Miller Clamping VDS I_Miller：Miller Current C：Miller Capacitance I_Miller I_Miller Without using M3 VGS C M1:OFF Gate Driver 11 VGS With using M3 VDS Additional MOSFET M3:ON Active Miller clamping could suppress over raises of VGS Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Input-Output Delay Time 12 < Conditions > Product: BM6105FV, ROHM EVALUATION BOARD VCC1=5.0V, VCC2=15V, VEE2=-8V, INA=10kHz, OUT1_H/L=No Load Turn ON time (Ta = 25℃) BM6105FW ACPL-336J 250 Input (2V/ div) 200 Turn ON time(ACPL-336J) Turn OFF time (Ta = 25℃) BM6105FW ACPL-336J Input (2V/ div) Time (nsec) Output (10V/ div) 150 Turn OFF time (ACPL-336J) 100 High Speed Turn OFF time (BM6105FW) 50 Output (10V/ div) Photo coupler （AVAGO） Turn ON time（BM6105FW) BM6105FW (Rohm) 0 -75 -50 -25 0 25 50 75 100 125 150 175 Ta (℃) Small Delay Time & Small Temp Dependence Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Common-Mode Transient Immunity 13 < Conditions > Product: BM60015FV, ROHM EVALUATION BOARD, Ta=25℃ VCC1=5.0V, VCC2=15V, OUT=No Load, VCM=1500V 10ns GND1 GND1-GND2 500V/div. GND2 110kV/us IGBT_GATE 10V/div. Noise Simulator： NOISEKEN GND1-GND2 INS4040 500V/div. IGBT_GATE 10V/div. OUT=L 10ns GND1-GND2 500V/div. IGBT_GATE 10V/div. 10ns 125kV/us OUT=H 10ns GND1-GND2 500V/div. 114kV/us OUT=L 112kV/us IGBT_GATE 10V/div. OUT=H No Output Change ≦ 110kV/μs (measurement limit) Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Operating Waveforms 14 < Conditions > ROHM IPM (ONLY for ROHM internal evaluation) VCC1=5.0V, VCC2=18V, VEE2= -5V, VPN=800V, Ta=25℃ 100μs/div. IN(10V/div.) IN 5V Vgs(20V/div.) BM6101FV SiC P MOSFET g BUF d s 18V 5V Vds(500V/div.) Id(500A/div.) SiC SBD N 2μs/div. IN(10V/div.) Vgs(20V/div.) Vds(500V/div.) Id(500A/div.) 800V 400A No Malfunction under 800V/400A operation Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved 800V Summary 15 Rohm’s gate drivers are ① Wide temp range and little temp dependence Operating Temperature ; -40℃ < Ta < 125℃ ②Small delay time Temperature independent ; < 90ns ③Small package SSOP-B10W SSOP-B20W SSOP-B28W Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved ; 3.5mm x 10.0mm ; 6.5mm x 8.1mm ; 9.2mm x 10.4mm 16 Future Relationship かいろ Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved つか かんが 17 Appendix Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Comparison with competitor 1ED020I12F2 Larger robustness BM6101FV BM6104FV BM6105FW Isolation voltage 3,750Vrms Grade Industrial Automotive/ Industrial Indusltrial Package size 10.3mm x 10.3mm 6.5mm x 8.1mm 10.3mm x 10.3mm Ambient Temperature -40~105℃ -40~125℃ -40~105℃ Max. Output Current 1.5A Max. propagation delay 195ns@25℃ Max. dV/dt (CM) 50kV/μs Smaller size Higher speed 18 2,500Vrms 3.0A 350ns 150ns 95ns 100kV/μs Input supply level +5V Input logic level 5V CMOS Max. Output supply +20V/-12V 5VCMOS/ TTL +30V/-15V Fault Output pin +30V/-15V +24V/-15V Available Ready Output pin Available OSFB Output pin Not available Not Available Available Available Not available DESAT threshold 9V Adjustable 9V Soft turn off @DESAT Not available Adjustable Not available MOSFET for Active Miller Clamping Built-in External Built-in Separate Output pin ESD Capability (Human body model) Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved Not available ±1000V Available ±2000V Not available BM60051FV ② Mass Production 19 ③ ⑧ ⑥ ⑨ ⑦ ⑪ ⑪ ⑤ ① ④ ⑩ Isolation：①2,500Vrms High Speed：I/O delay < 260ns, Min. input pulse = 180ns Safety：②Fault output, ③UVLO1, ④UVLO2(Adjustable), ⑤SCP, ⑥OSFB ⑦Soft turn off (PROOUT; adjustable), ⑧Active Miller Clamping Gate Drive：⑨5A output, ⑩Flyback controller, ⑪Temp. Monitor(±3% Duty output) Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved BM60051FV 20 Switching Regulator Temp monitor TO voltage vs. Output Duty 100 Output voltage [10V/div.] sim値(typ) Simulation 実測値 Evaluation 90 Turn on/ Turn off time time(ns) 300 250 200 150 100 50 0 Output Duty (%) 80 70 60 50 40 30 20 ・Turn on ・Turn off 10 0 0 -75 -25 25 75 125 Ta(℃) Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved 1 2 TO voltage(V) 3 4 5 BM6101FV Mass Production 21 ⑦ GND1 NC PROOUT FLT MASK FLT1 TIMER VEE2 LOGIC OUT1 FB INB TIMER FLTRLS ③ VCC1 FLT ② BG MASK Q OFF ENA TEST1 GND1 MASK R ① MASK FLT2 Gate Drive Confidential SCP GND2 MASK ⑤ VEE2 MASK VTSIN ④ Isolation High Speed Safety ⑧ OUT2 S LOGIC INA ⑨ VREG ON BG VCC2 ⑩ 1pin Sensor ⑥ ：①2,500Vrms ：I/O delay < 350ns, Min. input pulse = 180ns ：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥Temp Shut Down, ⑦Soft turn off (PROOUT; adjustable), ⑧Active Miller clamping (OUT2) , ：⑨3A output (OUT1), ⑩Negative Power Supply (VEE2) c 2014 ROHM Co.,Ltd. All Rights Reserved BM6101FV Mass Production 22 ⑦ GND1 NC PROOUT FLT MASK FLT1 TIMER VEE2 LOGIC OUT1 FB INB TIMER FLTRLS ③ VCC1 FLT ② BG VREG ON BG MASK Q OFF ENA TEST1 GND1 MASK R ① MASK FLT2 Gate Drive Confidential SCP GND2 MASK ⑤ VEE2 MASK VTSIN ④ Isolation High Speed Safety ⑧ OUT2 S LOGIC INA VCC2 ⑩ ⑨ 1pin Sensor ⑥ ：①2,500Vrms ：I/O delay < 350ns, Min. input pulse = 180ns ：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥Temp Shut Down, ⑦Soft turn off (PROOUT; adjustable), ⑧Active Miller clamping (OUT2) , ：⑨3A output (OUT1), ⑩Negative Power Supply (VEE2) c 2014 ROHM Co.,Ltd. All Rights Reserved BM6102FV Mass Production 23 ⑦ GND1 NC PROOUT FLT MASK FLT1 TIMER LOGIC OUT1 FB INB GND2 ⑨ TIMER FLTRLS ③ VCC1 FLT ② OUT2 ON BG MASK S LOGIC INA TEST1 GND1 MASK MASK Q OFF ENA R ① Gate Drive Confidential SCPIN SCPTH FLT2 MASK VTSTH GND2 MASK VTSIN ④ Isolation High Speed Safety ⑧ VCC2 1pin Sensor ⑥ ⑤ ：①2,500Vrms ：I/O delay < 200ns, Min. input pulse = 100ns ：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥Temp Shut Down, ⑦Soft turn off (PROOUT; adjustable), ⑧Miller clamping (OUT2) ：⑨3A output (OUT1) c 2014 ROHM Co.,Ltd. All Rights Reserved BM6105FW ES available 24 ⑧ ⑥ ⑦ ② ⑤ ③ ① Isolation High Speed Safety Gate Drive ④ ：①2,500Vrms ：I/O delay < 95ns, Min. input pulse = 60ns ：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥Miller clamp ：⑦ 3A output, ⑧Negative VEE (VEE2) Pin-to-pin compatible with 1ED020I12F2 Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved ⑧ BM60052FV ES Available 25 ⑤ ⑧ ② ⑦ ⑩ ③ ④ ⑫ ① ⑥ ⑨ 1pin ⑪ Isolation：①2,500Vrms High Speed：I/O delay < 120ns, Min. input pulse = 70ns Safety：②Fault output, ③UVLO1, ④UVLO2, ⑤DESAT, ⑥Temp Shut Down, ⑦RDY, ⑧Miller Clamp (OUT2), ⑨Soft turn off (PROOUT; adjustable) Gate Drive：⑩3A separated output (OUT1H/ OUT1L), ⑪Negative Power Supply (VEE2) ⑫Flyback controller Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved BM60054FV ES Available 26 ⑧ ⑤ ② ⑦ ⑩ ③ ④ ⑫ ① ⑥ ⑨ 1pin ⑪ Isolation：①2,500Vrms High Speed：I/O delay < 120ns, Min. input pulse = 70ns Safety：②Fault output, ③UVLO1, ④UVLO2, ⑤SCP/DESAT, ⑥Temp Shut Down, ⑦RDY, ⑧Miller Clamp (OUT2), ⑨Soft turn off (PROOUT; adjustable) Gate Drive：⑩3A separated output (OUT1H/ OUT1L), ⑪Negative Power Supply (VEE2) ⑫Flyback controller Confidential c 2014 ROHM Co.,Ltd. All Rights Reserved BM60014FV Mass Production GND1 GND2 NC NC NC 4.5V~5.5V UVLO ① VCC1 INA 0V~3.3V/5.0V INB ④ 27 Pulse Generator XFLT NC UVLO ② NC ③ VCC2 S ⑥ OUT1 Q MC R NC + - 2V ⑤ NC NC NC GND1 GND2 1pin Isolation High Speed Safety Gate Drive Package Confidential ：①2,500Vrms ：I/O delay < 120ns, Minimum input pulse = 70ns ：②UVLO1, ③UVLO2, ④ENABLE input, ⑤Miller Clamping ：⑥3A output ： 6.5mm(typ.) x 8.1mm(typ.) x 2.01mm(max.) Clearance; 6.85mm (min.), Creepage; 6.2mm (min.) c 2014 ROHM Co.,Ltd. All Rights Reserved BM60014FV Temp Dependence of I/O delay VCC1 = 5.0V, VCC2 = 15.0V, No Load Turn ON time @Ta=25℃ IN (5V/ div) Distortion Max. 2.4ns@Ta=150℃ OUT (5V/ div) 40ns Turn OFF time Delay time (ns) 89ns Turn ON time Turn OFF time @Ta=25℃ IN (5V/ div) OUT (5V/ div) Confidential 89ns 40ns Ta (℃) c 2014 ROHM Co.,Ltd. All Rights Reserved 28 BM60015FV/ BM60016FV GND1 4.5V~5.5V 0V~3.3V/5.0V UVLO ② VCC1 INA INB Pulse Generator GND1 Isolation High Speed Safety Gate Drive Package Confidential Under investigation UVLO ① GND2 ③ VCC2 S OUT1 Q MC R + - GND2 2V ⑤ ④ 1pin ：①3,750Vrms ：I/O delay < 90ns, Minimum input pulse = 70ns ：②UVLO1, ③UVLO2, ④Miller Clamping ：⑤3A output ： 3.5 mm(typ) x 10.0 mm(typ) x 2.01 mm(max) Clearance; 8.0mm (min.), Creepage; 8.0mm (min.) c 2014 ROHM Co.,Ltd. All Rights Reserved 29
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