ROHM BH6717NUV Technical data
1/3
STRUCTURE Silicon Monolithic Integrated Circuit
PRODUCT SERIES Three-Phase Full-Wave Motor Driver for Fan Motor
TYPE BH6717NUV
FEATURES Speed controllable by PWM input signal
Sensorless drive
Soft switched drive
Power save function
〇ABSOLUTE MAXIMUM RA TINGS
Parameter
Supply voltage
Power dissipation
Operating temperature
Storage temperature
Output current
FG signal output voltage
FG signal output current
Junction temperature
＊ Reduce by 5.6mW/℃ over 25℃.
(On 70.0mm×70.0mm×1.6mm glass epoxy board)
Symbol Limit
VCC -0.3～6.5 V
Pd 560＊ mW
Topr -25～+95 ℃
Tstg -55～+125 ℃
Iomax 700＊＊ mA
VFG 6.5 V
IFG 6 mA
Tjmax 125 ℃
＊＊ This value is not to exceed Pd.
〇OPERATING CONDITIONS
Parameter
Operating supply voltage range
＊This product is not designed for production against radioactive rays.
＊This document may be strategic data subject to COCOM regulations.
Symbol
VCC 1.8～5.5 V
Limit Unit
Unit
REV. A
2/3
〇ELECTRICAL CHARACTERISTICS (Unless otherwise specifie d Ta=25℃,VCC=5V)
Parameter
Circuit current STB
Circuit current
PWM input H level
PWM input L level
PWM input current H
PWM input current L
Input frequency
FR input H level
FR input L level
PWM off time
Limit voltage
Output voltage
Symbol
Min. Typ. Max.
ICST - 20 50
ICC 1.5 4 6.5 mA
VPH 2.5 - VCC V
VPL 0 - 0.7 V
IPH - 0 1
IPL -50 -20 -
FP 20 - 50 kHz
VFRH 4.5 - VCC V FR=H : Reverse drive
VFRL 0 - 0.5 V FR=L : Forward drive
TPO 500 1000 2000
VLM 0.2 0.25 0.3 V
VO - 0.25 0.325 V
FG low voltage VFGL - - 0.4 V
Lock protection det.time
LDT - 0.5 - s
Limit
Unit Conditions
μA
μA
μA
μs
PWM=VCC
PWM=GND
Io＝250mA (H.L. total)
IFG＝5mA
Lock protection rel.time LRT 2.5 5 10 s
Lock protection ratio
RLT 9 10 - - rel.time/det.time ratio
〇PACKAGE OUTLINES
BH6
717
LOT No.
VSON010V3030 (UNIT:mm )
〇BLOCK DIAGRAM 〇Terminal name
FG
PWM
FR
GND
TSD
UVLO
OSC
Logic
BEMF
Det
Pre
Det
Level
COM
VCC
U
V
W
RNF
1uF
Pin No.
1
2
3
4
5
6
7
8
9
10
Terminal
name
FG
COM
VCC
U
RNF
W
V
GND
FR
PWM
REV. A
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