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參數(shù)資料
| 型號(hào)： | TDA5341 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Brushless DC motor and VCM drive circuit with speed control |
| 中文描述： | 無刷直流電動(dòng)機(jī)驅(qū)動(dòng)電路和氯乙烯的速度控制 |
| 文件頁數(shù)： | 15/28頁 |
| 文件大?。?/td> | 169K |
| 代理商： | TDA5341 |
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1997 Jul 10
15
Philips Semiconductors
Product specification
Brushless DC motor and VCM drive circuit
with speed control
TDA5341
Table 3
Division factor
D17 to D0
These bits program the division factor to apply to the
ROSC signal so as to generate a reference that will
precisely control the spindle rotation;
– The division factor can range from 8 (DIV = 1) to
8
×
[2
18
1] = 2097144 (DIV = 3FFFF)
– The relationship between this division factor, ROSC
and the motor frequency is as follows:
DIVISION FACTOR = 7.5
×
ROSC/MOTOR speed
where the MOTOR speed is given in rpm and ROSC
in Hz.
D19
D18
POLE PAIRS
0
0
1
1
0
1
0
1
4
6
8
12
Example: for a motor speed of 3600 rpm and a reference
oscillation ROSC of 16 MHz, the division factor that has to
be programmed via the bus, will be:
6
–
×
3600
The resulting error will be less than 0.04 rpm.
DIV
7.5
16
10
×
33333
=
=
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
HANDLING
Every pin withstands the ESD test in accordance with MIL-STD-883C. Method 3015 (HBM 1900
, 100 pF) 3 pulses
positive and 3 pulses negative on each pin with reference to ground. Class 1 : 0 to 1999 V.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
MIN.
MAX.
UNIT
V
DD
V
i
V
60,8,21
V
45,37,53
V
1,2,18,19
T
stg
T
amb
P
tot
positive supply voltage
input voltage (all pins)
output voltage pins MOT1, MOT2 and MOT3
output voltage pins VCM
, VCM+ and SENSEOUT
input voltage pins CAPST, CAPTI, CAPCDM and CAPCDS
IC storage temperature
operating ambient temperature
total power dissipation
0.3
0.25
0.7
55
0
5.5
V
DD
+ 0.3
+5.5
V
DD
+ 0.7
2.5
+150
+70
see Fig.7
V
V
V
V
V
°
C
°
C
SYMBOL
PARAMETER
VALUE
UNIT
R
th j-a
thermal resistance from junction to ambient in free air
54
K/W
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