BM6209FS Datasheet, PDF (1/30 Pages) Rohm – Bootstrap operation by floating high side driver

For Air-Conditioner Fan Motor
3-Phase Brushless Fan Motor
Driver
BM6209FS
General Description
This motor driver IC adopts PrestoMOS™ as 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 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)
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:
600V
Driver Output Current (DC):
±2.5A (Max)
Driver Output Current (Pulse):
±4.0A (Max)
Output MOSFET DC On Resistance: 1.7Ω (Typ)
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
R1
VSP
C1
C2~C4
D1
C5 C6
C13
C7
C8
M
HW HV HU
R2
C11
VREG
R4
R11 R9 R13
C9
R3
FG
Q1
R6 R5 C10 R12 R10 C14
R8
DTR
C12
R7
Figure 1. Application Circuit Example
Product structure : Semiconductor IC This product is not designed protection against radioactive rays
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TSZ02201-0828AB400220-1-2
24.Dec.2014 Rev.001