1. No category

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
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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
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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
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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