Datasheet
Gate Driver Providing Galvanic isolation Series
Isolation voltage 2500Vrms
1ch Gate Driver Providing Galvanic Isolation
BM60014FV-C
General Description
The BM60014FV-C is a gate driver with an isolation
voltage of 2500Vrms, I/O delay time of 120ns, and
minimum input pulse width of 70ns. It incorporates the
fault signal output functions, Under-voltage Lockout
(UVLO) function and Miller clamp function.
Key Specifications
Isolation voltage:
Maximum gate drive voltage:
I/O delay time:
Minimum input pulse width:
2500Vrms
24V
120ns(Max)
70ns(Max)
Features
Providing Galvanic Isolation
Active Miller Clamping
Fault signal output function
Under-voltage Lockout function
AEC-Q100 Qualified
Package
SSOP-B20W
W(Typ) x D(Typ) x H(Max)
6.50mm x 8.10mm x 2.01mm
Applications
IGBT Gate Driver
MOSFET Gate Driver
Typical Application Circuits
GND1
NC
NC
VCC1
INA
INB
XFLT
UVLO1
NC
NC
GND1
UVLO1
Pulse
Generator
UVLO2
S
Q
R
Pre-
driver
NC
GND2
NC
VCC2
OUT
MC
NC
+
NC
GND2
NC
1pin
-
Figure 1. Application Circuits (IGBT Gate Driver)
GND1
NC
NC
VCC1
INA
INB
XFLT
UVLO1
NC
NC
GND1
UVLO1
Pulse
Generator
UVLO2
S
Q
R
Pre-
driver
NC
GND2
NC
VCC2
OUT
MC
NC
+
NC
GND2
NC
1pin
-
Figure 2. Application Circuits (MOSFET Gate Driver)
〇Product
structure : Silicon integrated circuit
.
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© 2013 ROHM Co., Ltd. All rights reserved.
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〇This
product has no designed protection against radioactive rays
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BM60014FV-C
Recommended Range of External Constants
Pin Name
VCC1
VCC2
Symbol
C
VCC1
C
VCC2
Recommended Value
Min.
0.1
0.33
Typ.
1.0
-
Max.
-
-
Unit
µF
µF
Datasheet
Pin Configurations
(TOP VIEW)
NC
GND2
NC
NC
MC
OUT
VCC2
NC
GND2
1
2
3
4
5
6
7
8
9
20 GND1
19 NC
18 NC
17 XFLT
16 INB
15 INA
14 VCC1
13 NC
12 NC
11 GND1
NC 10
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Pin Name
NC
GND2
NC
NC
MC
OUT
VCC2
NC
GND2
NC
GND1
NC
NC
VCC1
INA
INB
XFLT
NC
NC
GND1
No Connection
Output-side ground pin
No Connection
No Connection
Output pin for Miller Clamp
Output pin
Output-side power supply pin
No Connection
Output-side ground pin
No Connection
Input-side ground pin
No Connection
No Connection
Input-side power supply pin
Control input pin A
Control input pin B
Fault signal output pin
No Connection
No Connection
Input-side ground pin
Function
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BM60014FV-C
Description of pins and cautions on layout of board
Datasheet
1) VCC1 (Input-side power supply pin)
The VCC1 pin is a power supply pin on the input side. To suppress voltage fluctuations due to the current to drive internal
transformers, connect a bypass capacitor between the VCC1 and the GND1 pins.
2) GND1 (Input-side ground pin)
The GND1 pin is a ground pin on the input side.
3) VCC2 (Output-side positive power supply pin)
The VCC2 pin is a power supply pin on the output side. To reduce voltage fluctuations due to OUT pin output current,
connect a bypass capacitor between the VCC2 and the GND2 pins.
4) GND2 (Output-side ground pin)
The GND2 pin is a ground pin on the output side.
5) INA, INB (Control input terminal)
The INA and INB pins are used to determine output logic.
INB
INA
OUT
H
L
L
H
H
L
L
L
L
L
H
H
6) OUT (Output pin)
The OUT pin is used to drive the gate of a power device.
7) MC (Output pin for Miller Clamp)
The MC pin is for preventing the increase in gate voltage due to the Miller current of the power device connected to the
OUT pin. If the Miller Clamp function is not used, short-circuit the MC pin to the GND2 pin.
8) XFLT (Fault signal output pin)
The XFLT pin is an open drain pin used to output a fault signal when a fault occurs (i.e., when the Under-voltage Lockout
function (UVLO1) is activated).
Conditions
XFLT
While in normal operation
L
When an Fault occurs
Hi-Z
(When UVLO1 is activated)
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BM60014FV-C
Description of functions and examples of constant setting
1) Miller Clamp function
When INA=L and OUT pin voltage < V
MCON
(typ 2V), the internal MOSFET of the MC pin is turned ON.
INA
L
H
MC
less than V
MCON
X
Internal MOSFET of the MC pin
ON
OFF
Datasheet
VCC2
PREDRIVER
PREDRIVER
OUT
GATE
LOGIC
MC
PREDRIVER
+
-
V
MCON
GND2
Figure 3. Block diagram of Miller Clamp function.
t
POFFA
t
PONA
H
INA
L
H
OUT
L
H
GATE
V
MCON
L
MC
Hi-Z
L
Figure 4. Timing chart of Miller Clamp function
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BM60014FV-C
Datasheet
2) Under-voltage Lockout (UVLO) function
The BM60014FV-C incorporates the Under-voltage 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 voltage typ
9.5V), the OUT pin will output the “L” signal. In addition, to prevent malfunctions due to noises, a mask time of t
UVLO1MSK
(typ 2.5µs) and t
UVLO2MSK
(typ 2.85µs) are set on both the low and the high voltage sides.
This IC does not have a function which feeds back the high voltage side state to the low voltage side.
A
fter the high
voltage side UVLO is released, the input signal will take effect from the time after the input signal switches.
H
INA
L
V
UVLO1H
VCC1
H
OUT
L
Hi-Z
XFLT
Figure 5. Input-side UVLO Function Operation Timing Chart
H
INA
L
V
UVLO2H
V
UVLO2L
L
VCC2
OUT
H
Hi-Z
L
Hi-Z
XFLT
Figure 6. Output-side UVLO Function Operation Timing Chart
L
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