BH6578FVM_11 Datasheet, PDF (1/9 Pages) Rohm – 0.5A or Less Reversible Motor Drivers (Single Moter)

Reversible Motor Drivers for Brush Motors
0.5A or Less Reversible
Motor Drivers (Single Moter)
BH6578FVM,BD7931F
No.11008EBT05
●Description
The BH6578FVM and BD7931F are reversible motor drivers with a wide output dynamic range, with power MOS used for the
output transistor. The motor drivers can set the output mode to four modes of normal rotation, reverse rotation, stop (idling),
and braking in accordance with input logic (2 inputs).
●Features
1) Wide dynamic range loading driver with MOS output, Ron = 1.0Ω (Top+Bottom)
2) With loading driver voltage setting terminal
3) Built-in thermal shutdown circuit (TSD)
4) MSOP8 package (BH6578FVM)
5) SOP8 package (BD7931F)
●Applications
Tray loading of CD/DVD, applications using DC motors
●Absolute maximum ratings (Ta=25℃)
Parameter
Symbol
Ratings
BH6578FVM
BD7931F
Supply Voltage
Vcc
7
15
Power dissipation
Pd
0.55 *
0.69**
Operating temperature
Topr
-35～+85
-40～85
Storage temperature
Tstg
-55～+150
Output current
Iout
500
Junction temperature
Tjmax
150
* When 70 mmx70 mmx1.6 mm thick glass epoxy substrate with less than 3% copper foil occupancy ratio is mounted.
When used at Ta=25°C or higher, derated at 4.4 mW/°C.
** When 70 mmx70 mmx1.6 mm thick glass epoxy substrate with less than 3% copper foil occupancy ratio is mounted.
When used at Ta=25°C or higher, derated at 5.5 mW/°C.
Unit
V
W
℃
℃
mA
℃
●Recommended operating range
Parameter
Supply voltage
Symbol
Range
BH6578FVM
BD7931F
Unit
Vcc
4.5~5.5
4.5～14
V
●Truth table
BH6578FVM,BD7931F
INPUT
INFWD INREV
L
L
L
H
H
L
H
H
Hiz：Hi-impedance
OUTPUT
OUT+
OUT-
Hi Z
Hi Z
L
H
H
L
L
L
Function
High Impedance
REV mode
FWD mode
Brake mode
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2011.05 - Rev.B