BD7755RFV Datasheet, PDF (2/19 Pages) Rohm – System Motor Driver IC for Half Height Drive (Sensor less)

BD7755RFV
Technical Note
●Recommended operating conditions
(Set the power supply voltage with consideration to power dissipation)
Parameter
Symbol
Ratings
Min.
Typ.
Spindle / Sled motor driver power block power
supply voltage
SPVM,SLVM
－
Vcc ^#4
Pre block power supply voltage
Vcc
10.8
12
Loading driver power block supply voltage
SA, Actuator driver power block
power supply voltage
PWM control block power supply voltage
LDVM
4.3
5.0
SAVM,AVM
4.3
5.0
DVcc
4.3
5.0
Spindle driver output current
Iosp
－
1.0
Actuator, SA, sled, loading motor driver
output current
Ioo
－
0.5
#4 Set the same supply voltage to SPVM, SLVM and Vcc.
#5 The current is guaranteed 3.5A in case of the Short-circuit braking mode and the current which is turned on/off in
a duty-ratio of less than 1/10 with a maximum on-time of 5msec
Unit
Max.
－
V
13.2
V
Vcc
V
5.5
V
5.5
V
2.5 ^#5
A
0.8
A
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2/18
2010.06 - Rev.A