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PDF BM6108FV-LB Data sheet ( Hoja de datos )
| Número de pieza | BM6108FV-LB | |
| Descripción | Isolation voltage 2500Vrms 1ch Gate Driver Providing Galvanic Isolation | |
| Fabricantes | ROHM Semiconductor | |
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Datasheet
Gate Driver Providing Galvanic isolation Series
Isolation voltage 2500Vrms
1ch Gate Driver Providing Galvanic Isolation
BM6108FV-LB
General Description
This is the product guarantees long time support in
Industrial market.
The BM6108FV-LB is a gate driver with isolation voltage
2500Vrms, I/O delay time of 150ns, and minimum input
pulse width of 90ns, and incorporates the fault signal
output functions, undervoltage lockout (UVLO) function,
and short current protection (SCP, DESAT) function.
Features
Long Time Support Product for Industrial Applications.
Providing Galvanic Isolation
Active Miller Clamping
Fault Signal Output Function
(Adjustable Output Holding Time)
Undervoltage Lockout Function
Short Current Protection Function
(Adjustable Reset Time)
Soft Turn-Off Function For Short Current Protection
(Adjustable Turn-Off Time)
Supporting Negative VEE2
Output State Feedback Function
UL1577 Recognized:File No. E356010
Typical Application Circuits
Key Specifications
Isolation Voltage:
Maximum Gate Drive Voltage:
I/O Delay Time:
Minimum Input Pulse Width:
2500Vrms
24V
150ns(Max)
90ns(Max)
Package
SSOP-B20W
W(Typ) x D(Typ) x H(Max)
6.50mm x 8.10mm x 2.01mm
Applications
Industrial Equipment
IGBT Gate Driver
MOSFET Gate Driver
GND1
OSFB
INB
FLTRLS
VCC1
FLT
INA
ENA
TEST
GND1
INA
Latch
ENA
FLT
S
Q
R
Timer
UVLO
LOGIC
+-
FB
+
-
UVLO
LOGIC
S
Q
R+
-
Regulator
Figure 1. For using 4-pin IGBT (for using SCP function)
PROOUT
VEE2
OUT1L
OUT1H
VCC2
VREG
OUT2
GND2
VEE2
SCPIN
1pin
GND1
OSFB
INB
FLTRLS
INA
Latch
ENA
S
Q
R
FLT Timer
+
-
FB
+
-
PROOUT
VEE2
OUT1L
OUT1H
VCC1
FLT
INA
ENA
TEST
GND1
UVLO
LOGIC
UVLO
LOGIC
S
Q
R+
-
Regulator
VCC2
VREG
OUT2
GND2
VEE2
SCPIN
Figure 2. For using 3-pin IGBT (for using DESAT function)
1pin
○Product structure：Silicon integrated circuit ○This product is not designed protection against radioactive rays
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・14・001
1/35
TSZ02201-0818ABZ00020-1-2
25. Dec. 2015 Rev.002
1 page  
BM6108FV-LB
2) Fault status output
This function is used to output a fault signal from the FLT pin when a fault occurs (i.e., when the undervoltage lockout
function (UVLO) or short current protection function (SCP) is activated) and hold the Fault signal until the set Fault output
holding time is completed. The Fault output holding time tFLTRLS is given as the following equation with the settings of
capacitor CFLTRLS and resistor RFLTRLS connected to the FLTRLS pin. For example, when CFLTRLS is set to 0.01F and
RFLTRLS is set to 200k, the holding time will be set to 2 ms.
tFLTRLS [ms]= CFLTRLS [µF]•RFLTRLS [k]
To set the fault output holding time to “0” ms, only connect the resistor RFLTRLS.
Status
Normal
Fault occurs
FLT pin
Hi-Z
L
Status
FLTRLS
FLT
OUT1H/L
Fault occurs (The UVLO or SCP function is activated.)
VFLTRLS
Hi-Z
L
H
L
VCC1
FLTRLS
FLT
UVLO
SCP
FLT
S
R
-
+
Fault output holding time (tFLTRLS)
Figure 5. Fault Status Output Timing Chart
ECU
GND1
3) Undervoltage Lockout (UVLO) function
Figure 6. Fault Output Block Diagram
The BM6108FV-LB incorporates the undervoltage lockout (UVLO) function both on the low and the high voltage sides.
When the power supply voltage drops to the UVLO ON voltage (low voltage side typ 3.4V, high voltage side typ 9.05V),
the OUT1 and the FLT pin both will output the “L” signal. When the power supply voltage rises to the UVLO OFF voltage
(low voltage side typ 3.5V, high voltage side typ 9.55V), these pins will be reset. However, during the fault output holding
time set in “2) Fault status output” section, the OUT1 pin and the FLT pin will hold the “L” signal. In addition, to prevent
malfunctions due to noises, mask time tUVLO1MSK (typ 10µs) and tUVLO2MSK (typ 10µs) are set on both low and high
voltage sides.
H
IN
L
VCC1
FLT
OUT1H/L
IN
Figure 7. Low voltage side UVLO Function Operation Timing Chart
VUVLO1H
VUVLO1L
Hi-Z
L
H
L
H
L
VUVLO2H
VUVLO2L
VCC2
FLT
OUT1H/L
Figure 8. High voltage side UVLO Operation Timing Chart
Hi-Z
L
H
Hi-Z
L
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© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
5/35
TSZ02201-0818ABZ00020-1-2
25. Dec. 2015 Rev.003
5 Page 
BM6108FV-LB
Absolute Maximum Ratings
Parameter
Input-Side Supply Voltage
Output-Side Positive Supply Voltage
Output-Side Negative Supply Voltage
Maximum Difference
Between Output-Side Positive and Negative Voltages
INA, INB, ENA Pin Input Voltage
OSFB, FLT Pin Input Voltage
FLTRLS Pin Input Voltage
SCPIN Pin Input Voltage
VREG Pin Output Current
OUT1H, OUT1L, PROOUT Pin Output Current (Peak 10μs)
OUT2 Pin Output Current (Peak 10μs)
OSFB Output Current
FLT Output Current
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Symbol
VCC1
VCC2
VEE2
Limits
-0.3～+7.0(Note 1)
-0.3～+30.0(Note 2)
-15.0～+0.3(Note 2)
Unit
V
V
V
VMAX2
36.0
V
VIN
VFLT
VFLTRLS
VSCPIN
IVREG
IOUT1PEAK
IOUT2PEAK
IOSFB
IFLT
Pd
Topr
Tstg
-0.3～+VCC1+0.3 or 7.0(Note 1)
-0.3～+VCC1+0.3 or 7.0(Note 1)
-0.3～+VCC1+0.3 or 7.0(Note 1)
-0.3~VCC2+0.3(Note 2)
10
5.0(Note 3)
1.0(Note 3)
10
10
1.19(Note 4)
-40～+105
-55～+150
V
V
V
V
mA
A
A
mA
mA
W
°C
°C
Junction Temperature
Tjmax
+150
°C
(Note 1) Relative to GND1.
(Note 2) Relative to GND2.
(Note 3) Should not exceed Pd and Tj=150C.
(Note 4) Derate above Ta=25C at a rate of 9.5mW/C. Mounted on a glass epoxy of 70 mm 70 mm 1.6 mm.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Ratings
Parameter
Input-Side Supply Voltage(Note 5)
Output-Side Positive Supply Voltage(Note 6)
Output-Side Negative Supply Voltage(Note 6)
Maximum Difference
Between Output-Side Positive and Negative Voltages
(Note 5) Relative to GND1.
(Note 6) Relative to GND2.
Symbol
VCC1
VCC2
VEE2
VMAX2
Min
4.5
10
-12
10
Max Units
5.5 V
24 V
0V
32 V
Insulation Related Characteristics
Parameter
Insulation Resistance (VIO=500V)
Insulation Withstand Voltage / 1min
Insulation Test Voltage / 1sec
Symbol
RS
VISO
VISO
Characteristic
>109
2500
3000
Units
Ω
Vrms
Vrms
www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
11/35
TSZ02201-0818ABZ00020-1-2
25. Dec. 2015 Rev.003
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet BM6108FV-LB.PDF ] | |
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