Motor Driver. BM6248FS Datasheet

BM6248FS Driver. Datasheet pdf. Equivalent

BM6248FS Datasheet
Recommendation BM6248FS Datasheet
Part BM6248FS
Description 3-Phase Brushless Fan Motor Driver
Feature BM6248FS; Datasheet For Air-Conditioner Fan Motor 3-Phase Brushless Fan Motor Driver BM6248FS General Descri.
Manufacture ROHM
Datasheet
Download BM6248FS Datasheet




ROHM BM6248FS
Datasheet
For Air-Conditioner Fan Motor
3-Phase Brushless Fan Motor
Driver
BM6248FS
General Description
This 3-phase Brushless Fan motor driver IC adopts
PrestoMOSas the output transistor, 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 downsizing the built-in PCB of the motor.
Features
600V PrestoMOS™ Built-in
Output Current 1.5A
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
Typical Application Circuit
Key Specifications
Output MOSFET Voltage:
Driver Output Current (DC):
Driver Output Current (Pulse):
Output MOSFET DC On Resistance:
Duty Control Voltage Range:
Phase Control Range:
Maximum Junction Temperature:
600V
±1.5A (Max)
±2.5A (Max)
2.7(Typ)
2.1V to 5.4V
0° to +40°
+150°C
Package
SSOP-A54_36A
W(Typ) x D(Typ) x H(Max)
2.0mm x 14.1mm x 2.4mm
SSOP-A54_36
SSOP-A54_36A
VDC
GND
VCC
VSP
R1
C1
C2~C4
HW HV HU
R3
R2
C11
FG
Q1
DTR
D1 C5 C6
R4
R8
C12
C7 C13
C8
M
C9
R7
Figure 1. Application Circuit Example
Product structure : Semiconductor IC
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© 2018 ROHM Co., Ltd. All rights reserved.
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This product has no designed protection against radioactive rays
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ROHM BM6248FS
BM6248FS
Contents
General Description ........................................................................................................................................................................1
Features..........................................................................................................................................................................................1
Applications ....................................................................................................................................................................................1
Key Specifications ..........................................................................................................................................................................1
Package ..................................................................................................................................................................................1
Typical Application Circuit ...............................................................................................................................................................1
Contents .........................................................................................................................................................................................2
Block Diagram and Pin Configuration .............................................................................................................................................3
Pin Description................................................................................................................................................................................3
Description of Blocks ......................................................................................................................................................................4
Controller Outputs and Operation Mode Summary.........................................................................................................................9
Absolute Maximum Ratings ..........................................................................................................................................................10
Thermal Resistance .....................................................................................................................................................................10
Recommended Operating Conditions........................................................................................................................................... 11
Electrical Characteristics (Driver part) .......................................................................................................................................... 11
Electrical Characteristics (Controller part) ....................................................................................................................................12
Typical Performance Curves (Reference Data) ............................................................................................................................13
Timing Chart .................................................................................................................................................................................21
Application Example .....................................................................................................................................................................23
Parts List.......................................................................................................................................................................................23
Dummy Pin Descriptions...............................................................................................................................................................24
I/O Equivalent Circuits ..................................................................................................................................................................25
Operational Notes.........................................................................................................................................................................26
Ordering Information.....................................................................................................................................................................28
Marking Diagrams.........................................................................................................................................................................28
Physical Dimension and Packing Information ...............................................................................................................................29
Revision History............................................................................................................................................................................30
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© 2018 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
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TSZ02201-0P1P0C402200-1-2
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ROHM BM6248FS
BM6248FS
Block Diagram and Pin Configuration
VCC
1
VCC
5
VSP
6
VREG
7
HWN 9
HW HWP 10
HVN 11
HV HVP 12
HUN 13
HU HUP 14
PCT 15
PC 16
FAULT
CCW 17
FGS 18
VREG FG 19
FOB 20
SNS 21
VREG
VSP
TEST
VREG
LEVEL
SHIFT
&
GATE
UH
UL DRIVER
LEVEL
VH SHIFT
VL &
GATE
DRIVER
V/I
VREG
A/D 6
TEST
VREG
WH
LOGIC WL
LEVEL
SHIFT
&
GATE
DRIVER
FIB
VREG
FAULT
SINE
WAVE
GENE.
36 VDC
35 BU
34 U
33 BV
32 V
31 VDC
30 BW
M
29 W
28 PGND
OSC
26 GND
24 GND
23 RT
VSP
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
VDC
BU
U
BV
V
VDC
BW
W
PGND
Figure 2. Block Diagram
Figure 3. Pin Configuration
(Top View)
Pin Description
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 No connection
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 Phase control input 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 No connection
-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 -.
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© 2018 ROHM Co., Ltd. All rights reserved.
TSZ22111 15 001
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TSZ02201-0P1P0C402200-1-2
22.Feb.2019 Rev.002







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