ROHM BH6534KV

BH6530KV / BH6534KV
Optical disc ICs
PMW motor driver IC for slim type CD-ROM
BH6530KV / BH6534KV
BH6530KV / BH6534KV is a motor driver IC developed for CD-ROM, and DVD-ROM. This IC integrates 3-phase PMW
driver for driving spindle motor and PMW driver for driving feed motor.
BH6530KV
FG signal 1 phase output
BH6534KV
FG signal 3 phase synthesis output
zApplications
CD-ROM slim, DVD-ROM slim set
zExternal dimensions (Unit : mm)
9.0 ± 0.3
7.0 ± 0.2
24
48
13
1
1.425 ± 0.1
0.1 ± 0.1
25
0.4
zFeatures
1) OP amp. is incorporated for input of each driver
to construct filter easily.
2) Built-in low ON resistance power MOS.
3) Built-in current limit, hall bias, FG output and inversion protection
for 3-phase PWM driver.
4) Built-in standby circuit.
5) Built-in thermal shutdown circuit.
6) High-efficient CD drive system achieved by using this IC and 2ch
PWM driver BH6526FV in pairs.
7.0 ± 0.2
9.0 ± 0.3
36
37
12
0.15 ± 0.1
0.5
0.2 ± 0.1
0.1
VQFP48
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
VCC
9
Supply voltage
Power dissipation
Unit
V
∗1
mW
Pd
1180
Operating temperature range
Topr
−30 to +85
°C
Storage temperature range
Tastg
°C
Max.output current
IoMAX
−55 to +150
∗2
3
A
∗1 Derating : 9.5mW/°C for operation above Ta=25°C.
∗2 Intermittent current at maximum applied time of 5 msec, 1/10 duty (max.)
zRecommended operating conditions (Ta=25°C)
Parameter
Supply voltage
Symbol
Min.
Typ.
Max.
Unit
PRE / POW VCC
4.5
5.0
5.5
V
1/2
BH6530KV / BH6534KV
Optical disc ICs
zElectrical characteristics
( Unless otherwise noted, Ta=25°C, Vcc=5V, Vref=1.65V, RL(SL)=8Ω+47µH, RL(SP)=2 Ω+47µH, RNF=0.33 Ω)
Parameter
Symbol
Min.
Typ.
Max.
Unit
IST
−
0
0.1
mA
Current in standby mode
Conditions
< PWM driver >
Input dead zone (one side)
VDZ1
0
20
50
mV
Voltage gain
GVC
12
14
16
dB
Output ON resistance
RON1
−
0.8
1.6
Ω
Io=500mA
< 3-phase motor driver >
Input dead zone (one side)
VDZ2
2
50
150
mV
Input-output gain
gm2
0.40
0.55
0.70
A/V
RNF=0.33Ω
Output ON resistance
RON2
−
0.5
1.0
Ω
Io=500mA
Torque limit voltage
VLIM2
0.16
0.20
0.24
V
RNF=0.33Ω
zApplication circuit
M
SLED
0.1µF
0.1µF
36
35
0.1µF
220pF
0.1µF
34
33
32
31
30
N
F
0.01µF
28
27
26
25
OSC
Charge
Pump(×2)
37
Vref
29
0.1µF
24
23
Pre Driver
+
−
38
SLED
IN
39
−
+
+
−
22
Logic
21
40
FG
T.S.D.
41
SPINDLE
IN
CURRENT
LIMIT
42
+
−
Vref
FG
HALL3
19
−
+
+
−
20
43
+
−
REVERSE
DETECT
18
HALL2
44
17
45
16
0.01µF
+
−
µ-COM
46
SBK
µ-COM
47
BK
µ-COM
48
STBY
HALL1
15
3 PHASE MATRIX
Pre Driver
1
Pre Driver
H.B.
Pre Driver
14
13
2
3
4
5
6
7
8
9
10
11
12
0.1µF
0.1µF
1µF
Resistor for current detection
0.1µF
0.1µF
SPINDLE
Vcc
2/2