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Rohm Semiconductor Electronic Components Datasheet

BM6205FS Datasheet

3-Phase Brushless Fan Motor Driver

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For Air-Conditioner Fan Motor
3-Phase Brushless Fan Motor
Driver
BM6205FS
General Description
This motor driver IC adopts PrestoMOS™ as the output
transistor, and put in a small full molding package with
the 120° square wave 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
600V PrestoMOS™ built-in
Output current 2.5A
Bootstrap operation by floating high side driver
(including diode)
120° square wave commutation logic
PWM control
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:
600V
Driver Output Current (DC):
±2.5A (Max)
Driver Output Current (Pulse):
±4.0A (Max)
Output MOSFET DC On Resistance: 1.7(Typ)
Duty Control Voltage Range:
2.1V to 5.4V
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
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
C13
C7
C8
M
C9
R7
Product structure : Semiconductor IC This product is not designed protection against radioactive rays
.http://www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 · 14 · 001
1/27
TSZ02201-0828AB400200-1-2
24.Dec.2014 Rev.001


Rohm Semiconductor Electronic Components Datasheet

BM6205FS Datasheet

3-Phase Brushless Fan Motor Driver

No Preview Available !

BM6205FS
Block Diagram and Pin Configuration
VCC
1
VCC
5
VSP
6
VSP
VREG
7
VREG
HWN
9
HW HWP
10
HVN
11
HV HVP
12
HUN
13
HU HUP
14
PCT
15
PC
16
V/I
TEST
FAULT
VREG
CCW
17
FGS
18
FG
19
FOB
20
VREG
SNS
21
VREG
FIB
FAULT
TEST
VREG
UH
UL
LEVEL
SHIFT
&
GATE
DRIVER
LOGIC VH
VL
LEVEL
SHIFT
&
GATE
DRIVER
WH
WL
PWM
LEVEL
SHIFT
&
GATE
DRIVER
VSP OSC
VDC
36
BU
35
U
34
BV
33
V
32
M
31 VDC
BW
30
W
29
PGND
28
GND
26
GND
24
RT
23
VCC
GND
GND
GND
VCC
VSP
VREG
NC
HWN
HWP
HVN
HVP
HUN
HUP
PCT
PC
CCW
FGS
FG
FOB
SNS
NC
RT
GND
GND
GND
VCC
Datasheet
VDC
BU
U
BV
V
VDC
BW
W
PGND
Figure 2. Block Diagram
Figure 3. Pin Configuration
Pin Descriptions (NC: No Connection)
Pin Name
Function
Pin Name
Function
1
VCC
Low voltage power supply
36
VDC
High voltage power supply
2
GND
Ground
- VDC
3
GND
Ground
4
GND
Ground
5
VCC
Low voltage power supply
35 BU Phase U floating power supply
6
VSP
Duty control voltage input pin
-
U
7 VREG Regulator output
34 U Phase U output
8 NC
9
HWN
Hall input pin phase W-
10
HWP
Hall input pin phase W+
33 BV Phase V floating power supply
11
HVN
Hall input pin phase V-
-V
12
HVP
Hall input pin phase V+
32 V Phase V output
13
HUN
Hall input pin phase U-
14
HUP
Hall input pin phase U+
15
PCT
VSP offset voltage output pin
16 PC PWM switching arm setting pin - VDC
17
CCW
Direction switch (H:CCW)
31
VDC
High voltage power supply
18
FGS
FG pulse # switch (H:12, L:4)
19 FG FG signal output
20
FOB
Fault signal output (open drain)
21
SNS
Over current sense pin
30 BW Phase W floating power supply
22 NC
-W
23 RT Carrier frequency setting pin 29 W Phase W output
24
GND
Ground
25
GND
Ground
26
GND
Ground
- PGND
27
VCC
Low voltage power supply
28 PGND Ground (current sense pin)
Note) All pin cut surfaces visible from the side of package are no connected, except the pin number is expressed as a “-”.
http://www.rohm.com
© 2014 ROHM Co., Ltd. All rights reserved.
TSZ22111 · 15 · 001
2/27
TSZ02201-0828AB400200-1-2
24.Dec.2014 Rev.001


Part Number BM6205FS
Description 3-Phase Brushless Fan Motor Driver
Maker ROHM
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BM6205FS Datasheet PDF






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