Power driver for portable CD
BH6541KV
Description
Dimension (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
VQFP48
Portable CD, MD
February, 2001
Control circuit supply voltage
2.4
2.2
4.5
V
Power block supply voltage
1.5
0.8
4.5
V
Pre-driver supply voltage
7.2
--
8.5
V
Recommended Operating Conditions (Ta=25C)
Parameter
Min.
Max.
Unit
Typ.
VCC
PVCC
VG (19pin)
Symbol
Absolute Maximum Ratings (Ta=25C)
Control circuit supply voltage
Power block supply voltage
Pre-driver supply voltage
Power dissipation
Parameter
Unit
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=25C
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
25
36
0.5
1
.
4
2
5
0
.
1
0
.
1
0
.
1
Current at no signal (VCC)
Current at operating
<H bridge driver (ch1,2,3)>
Output ON resistance
<Spindle driver>
Output ON resistance
Detection comparator input
CST charging current
CSL discharging current
CST charging current
All channels no input
All channels operating
Sum of ON resistance
(upper+lower)
Sum of ON resistance
(upper+lower)
Sum of ON resistance
(upper+lower)
Electrical characteristics (
Unless otherwise noted; Ta=25C, Vcc=2.4V, PVCC=2.4V,
RL=8
+47H(H bridge), RL=2+47H(spindle)
CSL discharging current
<Charge-pump>
Output voltage at no input
<Half-bridge driver>
Output ON resistance
<PVCC/2 monitor pin>
Monitor pin voltage1
ICC2
ICC2
HBRON
SPRON
VCD
ICTSO
ICTSI
ICLSO
ICLSI
VG
IBRON
VMON1
Symbol
0
4.1
1.4
7.8
3.5
6
1.1
Min.
4
9
2.5
2
Vcc1.0V
0.9
5.7
2.4
11.6
8
1.2
1.3
Max.
mA
mA
V
A
mA
A
A
V
V
Unit
Conditions
2
5
1.5
1
2.5
3.5
5
7.5
7.2
0.6
1.2
Typ.
Parameter
Application Circuit
2
1
3
4
5
6
H-Bridge
FOCUS
COIL
SLED
MOTOR
0.1
F
0.1
F
TRACKING
COIL
CLK
AD_PVCC
BRK
HBIN
FG
SL(R)
SL(F)
TE(R)
TE(F)
FE(R)
FE(F)
Pre Driver
Pre Driver
Pre Driver
Pre Driver
Pre Driver
PVCC/2
Monitor
0.033
F
0.033
F
0.1
F
0.22
F
2200pF
2200pF
15k
2200pF
Logic
H-Bridge
MUTE
Charge Pump
Oscilator
COM
M
TSD
VG
ch1
ch2
ch3
H-Bridge
34
33
32
31
30
29
28
27
25
26
24
23
22
21
20
19
18
17
16
13
15
14
35
36
12
10
9
7
8
11
Slope
Signal
Phase
Control
44
45
46
47
48
37
38
39
40
41
42
43
D S P
Appendix
Appendix1-Rev1.0
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
means without prior permission of ROHM CO.,LTD.
The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
to the use of such devices.
Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or
otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
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