- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄381353 > AS8410 (AUSTRIAMICROSYSTEMS AG) PWM DC Motor Regulator PDF資料下載
參數(shù)資料
| 型號(hào)： | AS8410 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類(lèi)： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | PWM DC Motor Regulator |
| 中文描述： | BRUSH DC MOTOR CONTROLLER, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁(yè)數(shù)： | 8/19頁(yè) |
| 文件大?。?/td> | 601K |
| 代理商： | AS8410 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)當(dāng)前第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)
PWM DC Motor Regulator – Data Sheet
AS8410
Rev. 1.0, December 2000
page
8
of
19
Meaning and Settings of the external devices
Sym-
bol
Description
Typical value
Application Note
Regulation loop settings / slew rate regulation
Resistor of the refer-
ence current genera-
tion I
ref
R
OSC
100 k
The voltage at the pin OSC is regu-
lated to V
OSC
= 1 V. The reference cur-
rent is therefore 10
μ
A.
This current is used for three functions:
1. The oscillator frequency (I
ref
= 10
μ
A
generates f
OSC
= 18 kHz, f
OSC
is a
linear function of I
ref
)
2. Generation of the internal set value
voltage in OM1 together with the
resistor R
int2.
100% set value is build by a volt-
age of 2 V at pin Cint2:
V
Cint2
(100%) = I
ref
* R
int2
= 2 V
3. Reference current for the power
FET driver / Slew rate regulation
(linear function between I
ref
and
driver output current I
OUT
)
The voltage drop over the R
meas
must
be 50 mV for the nominal motor cur-
rent: R
meas
= 50 mV / I
motor_nom
V
Cint2
(100%) = I
ref
* R
int2
= 2 V
R
meas
Motor current meas-
urement resistor
Dependent on the
nominal motor
current I
motor_nom
200 k
R
int2
Resistor to convert
the incoming duty
ratio of the set value
in OM1 to the set
value voltage V
Cint2
Filter capacitor of the
set value conversion
in OM1
Capacitor to set the
regulation loop time
constant and failure
handling time con-
stant
C
int2
> 2.2
μ
F
Dependent on the incoming PWM fre-
quency f
IN_PWM
f
IN_PWM
= 10 Hz
à
C
int2
> 2.2
μ
F
The time constant of the failure han-
dling T
fail
is determined by the max.
current at pin Cint2 (I
Cint1_max
= 10
μ
A
… 15
μ
A) and the min. voltage to start
the PWM generator (1.66 V):
T
fail
= (C
int1
* 1.66 V ) / I
Cint1_max
Application Support of Austria Mikro
Systeme AG will be guaranteed
C
int1
100 nF
SRC1
SRC2
Feedback circuitry of
the slew rate regula-
tion
Dependent on the
application (motor
and environment)
Protection Resistors
330
R
IN
Protection resistor of
the pin
IN
Protection resistor of
the pin
MODE
Needed in automotive applications
R
MODE
1 k
Needed in automotive applications
Temperature Sensor
R
TP1
+ R
TP2
< 10 k
R
TP1
R
TP2
Resistor divider of the
temperature sensor
The threshold voltage at the pin TP
must be 0.5 *VDD or (R
TP1
= R
TP2
)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS8412 | HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION |
| AS8413 | HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION |
| AS8846 | Programmable PWM DC Motor Driver / Controller |
| AS8F128K32 | 128K x 32 FLASH FLASH MEMORY ARRAY |
| AS9C25128M2036L-166PI | 2.5V 256/128K X 36 Synchronous Dual-port SRAM with 3.3V or 2.5V interface |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS8412 | 制造商:AMSCO 制造商全稱(chēng):austriamicrosystems AG 功能描述:HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION |
| AS8413 | 制造商:AMSCO 制造商全稱(chēng):austriamicrosystems AG 功能描述:HIGH PERFORMANCE AUTOMOTIVE SONAR INTRUSION |
| AS8424-A | 制造商:Coilcraft Inc 功能描述:DSL transformer, for AD20MSP910/918, not RoHS |
| AS8425-A | 制造商:Coilcraft Inc 功能描述:DSL transformer, for Motorola MC145660, not RoHS |
| AS8426-A | 制造商:Coilcraft Inc 功能描述:DSL transformer, for Alcatel MTK-20140, not RoHS |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。