ROHM BD6722FS Technical data

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STRUCTURE Silicon Monolithic Integrated Circuit

PRODUCT SERIES Single-Phase Full-Wave Motor Driver for Fan Motor

TYPE

ＢＤ６７２２ＦＳ

FEATURES Speed controllable by DC / PWM input
Current limit circuit
PWM soft switching drive

〇ABSOLUTE MAXIMUM RA TINGS

Parameter Symbol Limit Unit

Supply voltage Vcc
Power dissipation Pd
Operating temperature Topr
Storage temperature Tstg
High side output voltage VOH
Low side output voltage VOL
Low side output current Iomax
Signal output current IFG/IAL
Signal output voltage VFG/VAL
VREF current ability IVREF
VTH input voltage VVTH
Junction temperature Tjmax

20 V

812.5＊

-40～+100 ℃

-55～+150 ℃
34 V
34 V

1.5＊＊
10 mA
20 V

8 mA

15 V

150

＊ Reduce by 6.5mW/℃ over Ta=25℃.

(On 70.0mm×70.0mm×1.6mm glass epoxy board)

＊＊ This value is not to exceed Pd.

〇OPERATING CONDITIONS

Parameter Symbol Limit Unit

Operating supply voltage range Vcc
Hall input voltage range VH
VMIN input voltage range VVMIN

＊This product is not designed for production against radioactive rays.
＊This document may be strategic data subject to COCOM regulations.

4.5～17.0
0～Vcc-2.0
0～Vcc-2.0

mW

A

℃

V
V
V

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〇ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta=25℃,Vcc=12V)

Parameter Symbol

Min. Typ. Max.

Limit

Unit Conditions

Circuit current Icc 5.0 8.0 11.0 mA
Hall input hysteresis VHYS ±5 ±10 ±15 mV
High side output current

IH 5 10

15

mA
High side output leak current IHL - - 10 μA VOH=34V
Low side output voltage

VL - 0.3 0.45 V

Io=600mA
Lock detection ON time TON 0.18 0.3 0.42 s
Lock detection OFF time TOFF 3.6 6.0 8.4 s

FG output low voltage VFGL - 0.15 0.3 V IFG=5mA

FG output leak current IFGL - - 10 μA VFG=17V

AL output low voltage VALL - 0.15 0.3 V IAL=5mA

AL output leak current IALL - - 10 μA VAL=17V
OSC low voltage VOSCL 0.8 1.0 1.2 V

OSC high voltage VOSCH 2.24 2.44 2.64 V
OSC charge current ICOSC -50 -32 -26 μA
OSC discharge current IDOSC 26 32 50 μA

VTH=VREF*0.429
Output ON duty 1 DUTY1 75 80 85 %

H side pull up R=1kΩ

COSC=470pF

VTH=VREF*0.573
Output ON duty 2 DUTY2 45 50 55 %

H side pull up R=1kΩ

COSC=470pF

VTH=VREF*0.717
Output ON duty 3 DUTY3 15 20 25 %

H side pull up R=1kΩ

COSC=470pF
VREF voltage VREF 2.8 3.0 3.2 V IVREF=-2mA

Current limit voltage VCL 320 350 380 mV
VTH bias current IVTH - - 0.2 μA
VMIN bias current IVMIN - - 0.2 μA

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