ROHM BH6789FVM Technical data

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STRUCTURE Silicon Monolithic Integrated Circuit

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

TYPE

ＢＨ６７８９ＦＶＭ

FEATURES Soft switched drive

〇ABSOLUTE MAXIMUM RA TINGS

Parameter
Supply voltage
Power dissipation
Operating temperature
Storage temp erature
Output current

AL signal output current
AL signal output voltage

Junction temperature

Symbol Limit Unit

Vcc 7 V

Pd 585＊ mW
Topr -40～+105 ℃
Tstg -55～+150 ℃

Iomax 1000＊＊ mA

IAL 5 mA

VAL 7 V

Tjmax 150 ℃

＊ Reduce by 4.68mW/℃ over 25℃.

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

＊＊ This value is not to exceed Pd. Vcc=4.0V～6.0V

At Vcc=2.0V～4.0V,output current tolerance reduces.

〇OPERA TING CONDITIONS

Parameter

Operating supply voltage range
Hall input voltage range

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

Symbol

Limit Unit

Vcc 2.0～6.0 V

VH 0.4～Vcc-1.1 V

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〇ELECTRICAL CHARACTERISTICS (Unless otherwise specified Ta=25℃,Vcc=5V)

Parameter

Symbol

Min. Typ. Max.

Limit

Unit Conditions

Circuit current Icc - 5 8 mA
Input offset voltage VHOFS - - ±6 mV

Output voltage

VO - 0.32 0.49 V

Input-output Gain GIO 45 48 51 dB
AL low voltage VALL - - 0.3 V
Lock detection ON time TON 0.35 0.50 0.65 sec
Lock detection OFF time

Hall bias voltage

TOFF 3.5 5.0 6.5 sec

VHB 1.1 1.3 1.5 V

〇P ACKAGE OUTLINES

2.9 ± 0.1

58

Io＝250mA
Upper and Lower total

IAL=3mA

IHB=-5mA

H 6 7

0.1

8 9

±

2.8

4.0 ± 0.2

0.475

0.9Max.

0.75 ± 0.05

0.08 ± 0.05

0.65

41

Lot No.

0.22

0.08 S

+0.05

−0.04

0.29 ± 0.15

0.145

0.6 ± 0.2

+0.05

−0.03

0.08

M

MSOP8(UNIT:mm)

〇BLOCK DIAGRAM 〇Terminal name

OUT2

1

H+

HB

H-

OSC

Lock

Protection

Hall

Bias

2

3

4

500Ω

500Ω

150kΩ

-

+

-

+

150kΩ

TSD

GND

OUT1

Vcc

AL

8

Pin No.

1 OUT2

7

2 H+
3 HB
4 H-

6

5 AL
6 Vcc
7 OUT1

5

8 GND

Terminal

name

REV. D