AN8473SA Datasheet, PDF (2/6 Pages) Panasonic Semiconductor – Spindle motor driver IC for optical disk

AN8473SA
ICs for Compact Disc/CD-ROM Player
s Pin Descriptions
Pin No. Symbol
Description
Pin No. Symbol
Description
1
VH Hall bias pin
17
VM21 Motor supply voltage pin 2
2
H3L Hall element-3 negative input pin
18
VM22 Motor supply voltage pin 2
3
H3H Hall element-3 positive input pin
19
CS Current det. pin
4
H2L Hall element-2 negative input pin 20
N.C. N.C.
5
H2H Hall element-2 positive input pin
21
A31 Drive output 3
6
H1L Hall element-1 negative input pin 22
A32 Drive output 3
7
H1H Hall element-1 positive input pin
23
PG2 Power current det. pin 2
8
EC Torque command input pin
24
A21 Drive output 2
9
ECR Torque command reference input pin 25
A22 Drive output 2
10
FG FG signal output pin
26
PG1 Power current det. pin 1
11
Start Start/stop changeover pin
27
A11 Drive output 1
12 VPUMP Booster pin
28
A12 Drive output 1
13
BC1 Booster capacitor connection pin 1 29
N.C. N.C.
14
BC2 Booster capacitor connection pin 2 30 PWMSW PWM frequency changeover pin
15
GND Ground pin
31 VM12 Motor supply voltage pin 1
16
V_DD Supply voltage pin
32 VM11 Motor supply voltage pin 1
s Absolute Maximum Ratings
Parameter
Symbol
Rating
Unit
Supply voltage ^*2
V_DD
6.5
V
V_{M11, 12}
V_{M21, 22}
Drive output voltage ^*5
V_(m)
15
V
Control signal input voltage ^*6
V_(n)
0 to V_DD
V
Supply current
I_DD
30
mA
Drive output current ^*4
I_(o)
±1 200
mA
Hall bias current ^*7
I_HB(n)
30
mA
Power dissipation ^*3
P_D
293
mW
Operating ambient temperature ^*1
T_opr
−30 to +85
°C
Storage temperature ^*1
T_stg
−55 to +150
°C
Note) Do not apply external currents or voltages to any pins not specifically mentioned.
For circuit currents, '+' denotes current flowing into the IC, and '−' denotes current flowing out of the IC.
*1: Except for the operating ambient temperature and storage temperature, all ratings are for Ta = 25°C.
*2: The voltage in the step-up voltage circuit exceeds the supply voltage.
For the allowable value of the step-up voltage, refer to "s Electrical Characteristics".
*3: The power dissipation shown is the value of independent IC without a heat sink at Ta = 70°C. Refer to the PD  Ta curves
of the "s Application Notes" for details.
*4: o = 17, 18, 21, 22, 23, 24, 25, 26, 27, 28, 31, 32
*5: m = 21, 22, 24, 25, 27, 28
*6: n = 2, 3, 4, 5, 6, 7, 8, 9, 11, 30
*7: n = 1
2