- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄372103 > SA56202 (NXP Semiconductors N.V.) One-chip motor driver PDF資料下載
參數(shù)資料
| 型號(hào)： | SA56202 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | One-chip motor driver |
| 中文描述： | 單芯片電機(jī)驅(qū)動(dòng)器 |
| 文件頁數(shù)： | 6/24頁 |
| 文件大?。?/td> | 117K |
| 代理商： | SA56202 |
9397 750 12772
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Preliminary data sheet
Rev. 01 — 19 July 2004
6 of 24
Philips Semiconductors
SA56202
One-chip motor driver
7.
Functional description
7.1 Spindle motor control
The control input voltage on pin VINSPN is converted into a digital value by the ADC
where the voltage on pin VINREF is the midpoint reference. The transconductance gain
from input voltage V
VINSPN
to output motor current I
MOT
is:
where I
LIM
can be programmed by means of external resistor R
LIM
; see
Section 7.4
. The
motor current is described by
Figure 3
.
For VINSPN voltages larger than V
VINREF
the motor will accelerate with forward torque
control. For VINSPN voltages smaller than V
VINREF
the motor will brake with reverse
torque control. Because the U, V and W half-bridges of the spindle motor driver use a
direct PWM full-bridge switching scheme, the motor current can also be controlled and
limited during brake. Note that because of this active brake mechanism energy of the
motor can be recuperated back to the supply. Especially at large speeds, this can result in
currents delivered back to the supply. If the supply and/or other circuits than the motor
VINTLT
VINTRK
VINFCS
VINLD
V
SS(DIO)
DIODE
COSC
50
51
52
53
54
55
56
tilting driver input for tilt actuator voltage
tracking driver input for tracking actuator voltage
focus driver input for focus actuator voltage
loading driver input for loading motor voltage
temperature diode ground
diode for temperature readout
external capacitor for internal oscillator
Table 2:
Symbol
Pin description
…continued
Pin
Description
Fig 3.
Spindle motor current as a function of control input voltage on pin VINSPN.
g
m
(
SPN
)
I
–
V
VINSPN
V
VINREF
------------------------------------------------
I
V
VINREF
---------------------
=
=
001aaa431
I
LIM
I
MOT
V
VINSPN
I
LIM
reverse
torque
brake
0
V
VINREF
2V
VINREF
forward
torque
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SA56202TW | One-chip motor driver |
| SA56606-30GW | CMOS system reset |
| SA56606-31 | CMOS system reset |
| SA56606-31GW | CMOS system reset |
| SA56606-42 | CMOS system reset |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SA56202TW | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:One-chip motor driver |
| SA56-21 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:14MM SINGLE DIGIT NUMERIC DISPLAYS |
| SA56-21CGKWA | 制造商:Kingbright Corporation 功能描述:DISPLAY 570NM GRN 1DIG 0.56 TH 制造商:Kingbright Corporation 功能描述:LED Displays & Accessories .56" SINGLE DIGIT GRN LED DISPLAY 制造商:Kingbright Corporation 功能描述:DP |
| SA5621EWA | 制造商:KINGBRIGHT 功能描述:* |
| SA56-21EWA | 功能描述:LED 顯示器和配件 Single Red 625nm Common Anode RoHS:否 制造商:Avago Technologies 顯示器類型:7 Segment 數(shù)位數(shù)量:2 字符大小:7.8 mm x 14.22 mm 照明顏色:Red 波長:628 nm 共用管腳:Common Anode 工作電壓:2.05 V 工作電流:20 mA 最大工作溫度:+ 85 C 最小工作溫度:- 35 C 封裝:Tube |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。