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PDF BM6215FS Data sheet ( Hoja de datos )

Número de pieza BM6215FS
Descripción 3-Phase Brushless Fan Motor Driver
Fabricantes ROHM Semiconductor 
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No Preview Available ! BM6215FS Hoja de datos, Descripción, Manual

For Air-Conditioner Fan Motor
3-Phase Brushless Fan Motor
Driver
BM6215FS
General Description
This motor driver IC adopts MOSFET as output, and put
in a small full molding package with the 180° sinusoidal
commutation controller chip and the high voltage gate
driver chip. The protection circuits for overcurrent,
overheating, under voltage lock out and the high voltage
bootstrap diode with current regulation are built-in. It
provides optimum motor drive system and downsizing
the built-in PCB of the motor.
Features
250V MOSFET built-in
Output current 2.0A
Bootstrap operation by floating high side driver
(including diode)
180° sinusoidal commutation logic
PWM control (Upper and lower arm switching)
Phase control supported from 0° to +40° at 1°
intervals
Rotational direction switch
FG signal output with pulse number switch (4 or 12)
VREG output (5V/30mA)
Protection circuits provided: CL, OCP, TSD, UVLO,
MLP and the external fault input
Fault output (open drain)
Applications
Air conditioners; air purifiers; water pumps;
dishwashers; washing machines
Key Specifications
Output MOSFET Voltage:
250V
Driver Output Current (DC):
±2.0A (Max)
Driver Output Current (Pulse):
±4.0A (Max)
Output MOSFET DC On Resistance: 1.3(Max)
Duty Control Voltage Range:
2.1V to 5.4V
Phase Control Range:
0° to +40°
Operating Case Temperature: -20°C to +100°C
Junction Temperature:
+150°C
Power Dissipation:
3.00W
Package
SSOP-A54_36
W (Typ) x D (Typ) x H (Max)
22.0 mm x 14.1 mm x 2.4 mm
SSOP-A54_36
Typical Application Circuit
VDC
GND
VCC
VSP
R1
C1
C2~C4
D1 C5 C6
C13
C7
C8
M
FG
HW HV HU
R2
C11
R3
Q1
DTR
VREG
R11 R9 R13
R4
R6 R5 C10 R12 R10 C14
R8
C12
Figure 1. Application Circuit Example
C9
R7
Product structure : Semiconductor IC This product is not designed protection against radioactive rays
.http://www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 · 14 · 001
1/27
TSZ02201-0828AB400410-1-2
27.Jun.2016 Rev.001

1 page




BM6215FS pdf
BM6215FS
Datasheet
10. Under Voltage Lock Out (UVLO) Circuit
To secure the lowest power supply voltage necessary to operate the controller and the driver, and to prevent under
voltage malfunctions, the UVLO circuits are independently built into the upper side floating driver, the lower side driver
and the controller. When the supply voltage falls to VCCUVL or below, the controller forces driver outputs low. When the
voltage rises to VCCUVH or above, the UVLO circuit ends the lockout operation and returns the chip only after 32 carrier
frequency periods (1.6ms for the default 20kHz frequency) to normal operation. Even if the controller returns to normal
operation, the output begins from the following control input signal.
The voltage monitor circuit (4.0V nominal) is built-in for the VREG voltage. Therefore, the UVLO circuit does not release
operation when the VREG voltage rising is delayed behind the VCC voltage rising even if VCC voltage becomes VCCUVH
or more.
11. Thermal Shutdown (TSD) Circuit
The TSD circuit operates when the junction temperature of the controller exceeds the preset temperature (125°C
nominal). At this time, the controller forces all driver outputs low. Since thermal hysteresis is provided in the TSD circuit,
the chip returns to normal operation when the junction temperature falls below the preset temperature (100°C nominal).
The TSD circuit is designed only to shut the IC off to prevent thermal runaway. It is not designed to protect the IC or
guarantee its operation in the presence of extreme heat. Do not continue to use the IC after the TSD circuit is activated,
and do not use the IC in an environment where activation of the circuit is assumed.
Moreover, it is not possible to follow the output MOSFET junction temperature rising rapidly because it is a gate driver
chip that monitors the temperature and it is likely not to function effectively.
12. Motor Lock Protection (MLP) Circuit
When the controller detects the motor locking during fixed time of 4 seconds nominal when each edge of the hall signal
doesn't input either, the controller forces all driver outputs low under a fixed time 20 seconds nominal, and self-returns to
normal operation. This circuit is enabled if the voltage force to VSP is over the duty minimum voltage VSPMIN, and note
that the motor cannot start up when the controller doesn’t detect the motor rotation by the minimum duty control. Even if
the edge of the hall signal is inputted within range of the OFF state by this protection circuit, it is ignored. But if the VSP
is forced to ground level once, the protection can be canceled immediately.
13. Hall Signal Wrong Input Detection
Hall element abnormalities may cause incorrect inputs that vary from the normal logic. When all hall input signals go high
or low, the hall signal wrong input detection circuit forces all driver outputs low. And when the controller detects the
abnormal hall signals continuously for four times or more motor rotation, the controller forces all driver outputs low and
latches the state. It is released if the duty control voltage VSP is forced to ground level once.
14. Internal Voltage Regulator
The internal voltage regulator VREG is output for the bias of the hall
element and the phase control setting. However, when using the VREG
function, be aware of the IOMAX value. If a capacitor is connected to the
ground in order to stabilize output, a value of 1 µF or more should be used.
In this case, be sure to confirm that there is no oscillation in the output.
VCC
VREG
R1
HUP
HU HUN
HVP
HV HVN
HWP
HW HWN
IC
Figure 6. VREG Output Pin Application Example
http://www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 · 15 · 001
5/27
TSZ02201-0828AB400410-1-2
27.Jun.2016 Rev.001

5 Page





BM6215FS arduino
BM6215FS
Datasheet
Recommended Operating Conditions (Tc=25°C)
Parameter
Symbol
Min Typ Max Unit
Supply Voltage
VDC - 140 200 V
High Side Floating Supply Voltage VBU-VU, VBV-VV, VBW-VW
13.5
15
16.5 V
Low Side Supply Voltage
VCC 13.5 15 16.5 V
Bootstrap Capacitor
CB
1.0 -
- µF
VREG Bypass Capacitor
CVREG
1.0 -
- µF
Shunt Resistor (PGND)
RS
0.5 -
-
Junction Temperature
Tj - - 125 °C
(Note) All voltages are with respect to ground.
Electrical Characteristics (Driver part, unless otherwise specified, Ta=25°C and VCC=15V)
Parameter
Power Supply
HS Quiescence Current
LS Quiescence Current
Output MOSFET
D-S Breakdown Voltage
Leak Current
DC On Resistance
Diode Forward Voltage
Bootstrap Diode
Leak Current
Forward Voltage
Series Resistance
Under Voltage Lock Out
HS Release Voltage
HS Lockout Voltage
Symbol
IBBQ
ICCQ
V(BR)DSS
IDSS
RDS(ON)
VSD
ILBD
VFBD
RBD
VBUVH
VBUVL
Min
30
0.2
250
-
-
-
-
1.5
-
9.5
8.5
Typ
70
0.7
-
-
0.93
0.9
-
1.8
200
10.0
9.0
Max Unit
150 µA
1.3 mA
-V
100 µA
1.30
1.5 V
10 µA
2.1 V
-
10.5 V
9.5 V
Conditions
VSP=0V, each phase
VSP=0V
ID=1mA, VSP=0V
VDS=250V, VSP=0V
ID=1.0A
ID=1.0A
VBX=250V
IBD=-5mA, including series-R
VBX - VX
VBX - VX
http://www.rohm.com
© 2016 ROHM Co., Ltd. All rights reserved.
TSZ22111 · 15 · 001
11/27
TSZ02201-0828AB400410-1-2
27.Jun.2016 Rev.001

11 Page







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