- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄383940 > TDA5341 (NXP Semiconductors N.V.) Brushless DC motor and VCM drive circuit with speed control PDF資料下載
參數(shù)資料
| 型號： | 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)： | 13/28頁 |
| 文件大?。?/td> | 169K |
| 代理商： | TDA5341 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁
1997 Jul 10
13
Philips Semiconductors
Product specification
Brushless DC motor and VCM drive circuit
with speed control
TDA5341
The power for retraction is received from the rectification
of the EMF of the spindle before it is spun down.
After retraction, a brake procedure is automatically settled.
The time needed for retraction, prior to braking, can be
precisely adjusted with the external RC device connected
to pin BRAKEDELAY. The discharge of the capacitance
across the resistance from V
DD
0.7 V down to 1 V will
provide the desired time constant.
Actuator section
The actuator driver has a control input voltage that is
proportional to the actuator current which is capable of a
closed-loop band-pass frequency higher than 10 kHz.
An operational amplifier input allows passive external
components for compensation and gain setting.
The compensation amplifier is able to be pulled out of a
saturation state within 5
μ
s and its output swing is
V
DD
1.5 V.
An actuator current-sense amplifier is provided for use by
the disc drive controller. The gain from current-sense
resistor to sense the amplifier output is typically 10 (
±
3%)
and the output voltage swing is
±
1.25 V. An input common
mode range insures operation through all normal coil
voltage excursions. Maximum recovery time from
saturation is 20
μ
s (typ.).
T
RANSFER FUNCTION
With GAINSEL = HIGH; R
IN
= R
IN1
With GAINSEL = LOW;
Fig.6 VCM section application diagram.
handbook, full pagewidth
VCMIN2
RIN1
CL2
CL1
RIN2
Rf
VCMIN1
Vref
GAINSEL
input
FB2
FB1
actuator
VCM
SENSEIN
VCM
+
SENSEIN
+
SENSEOUT
PREAMP
SENSE
AMP
OUTPUT
GAIN 11
TDA5341
MGE825
Rs
T
11
R
f
×
Z
L
×
Z
VCM
R
IN
R
f
R
s
R
f
110
R
s
×
Z
L
×
+
×
+
×
(
)
×
---------------------------------------------------------1
×
–
=
R
IN
R
R
IN1
IN2
R
IN2
+
-----------------R
=
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TDA5341G | Brushless DC motor and VCM drive circuit with speed control |
| TDA5345HT | 5 V spindle & VCM driver combo |
| TDA5360 | Pre-Amplifier for Hard Disk Drive with MR-Read / Inductive Write Heads |
| TDA5360UH | Pre-Amplifier for Hard Disk Drive with MR-Read / Inductive Write Heads |
| TDA5360UK | Pre-Amplifier for Hard Disk Drive with MR-Read / Inductive Write Heads |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TDA5341G | 制造商:NXP Semiconductors 功能描述: |
| TDA5341G/C2 | 制造商:NXP Semiconductors 功能描述: |
| TDA5341GB-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Servo/Spindle Motor Controller/Driver |
| TDA5345HT | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:5 V spindle & VCM driver combo |
| TDA5360 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Pre-Amplifier for Hard Disk Drive with MR-Read / Inductive Write Heads |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。