Power driver for portable CD
BH6541KV
DescriptionDimension (Units : mm)
Features
Applications
BH6541KV is a 3chPWM driver + 1ch sensorless
spindle driver developed for driving motor and
actuator of portable CD,MD. Lower power
consumption can be achieved in the set by
applying the power MOSFET. In addition,
the size reduction in the set can be accomplished
by using the VQFP48 package.
00W149A
<PWM driver: 3ch>
1) Digital input, Direct PWM driving system
<Spindle driver>
1) 3-phase full-wave sensorless driving system
2) Built-in start and brake function
3) Built-in half-bridge driver for power supply
Specifications
VQFP48
Portable CD, MD
February, 2001
Control circuit supply voltage2.42.24.5V
Power block supply voltage1.50.84.5V
Pre-driver supply voltage7.2—8.5V
Recommended Operating Conditions (Ta=25 ̊C)
ParameterMin.Max.UnitTyp.
VCC
PVCC
VG (19pin)
Symbol
Absolute Maximum Ratings (Ta=25 ̊C)
Control circuit supply voltage
Power block supply voltage
Pre-driver supply voltage
Power dissipation
ParameterUnit
V
V
Operating temperature range
Storage temperature range
Symbol
Vcc
PVCC
VG (19pin)
Pd
Topr
Tstg
Limits
7
7
9
1.12
–30 ~ +85
–55 ~ +150
̊C
̊C
W
V
*
*Derating : 9.0mW/ ̊C for operation above Ta=25 ̊C
On less than 3% (percentage occupied by copper foil),70mmx70mm, t=1.6mm, glass epoxy mounting.
0.4
0.15±0.1
0.1
0.2±0.1
9.0
±
0.3
7.0
±
0.2
9.0±0.3
7.0±0.2
48
37
1
12
13
24
2536
0.5
1.425
±
0.1
0.1
±
0.1