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參數(shù)資料
| 型號： | L6223 |
| 廠商： | 意法半導體 |
| 英文描述： | DMOS Programmable High Speed Unipolar Stepper Motor Driver(高速單極步進電機驅(qū)動器) |
| 中文描述： | DMOS的可編程高速單極性步進電機驅(qū)動器（高速單極步進電機驅(qū)動器） |
| 文件頁數(shù)： | 20/33頁 |
| 文件大?。?/td> | 1078K |
| 代理商： | L6223 |
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R
DSON
L =
α
1.2 = 2
R
DSON
H =
α
0.7 = 1.15
R
S
= 0.36
R
tot
= 12.5
V
ON
= 26.24V
V
OFF
= 9.7
DC= 15.6%
T
p
= 8 msec
T
1
= 250
μ
s
PdL = 1.1W
PdH = 0.4W
Pdch = 0.20W
Pdo = 0.24W
At last:
P
tot
= 1.94W
The neededthermal resistance betweenjunction
and ambient mustbe equalto:
(During the chopping)
(During the chopping)
(During the phasechange)
R
thj
amb
=
T
jmasc
T
ambmasc
The worst casP
heatsink of 25
°
C/W. The calculation of the power
dissipation by considering the current imbalance
and by simulating a typical motion needed to
carry the head of a printer for example, becomes
full of difficulties. The use of the Personal Com-
puter is helpful in such a case: few examples are
shown from Fig. 28ab untilFig. 31 ab.
Each figure shows the Application Datas and one
diagram where the Total Dissipated Power versus
the peak of the motor current is plotted.
A max Ambient temperature of 70
°
C and a max
junction temperature of 150
°
C have been consid-
ered for a few applications using one single de-
vice and a dual device configuration to drive one
tot
39
°
C/W
Figure24:
Motor current Ip during t
ON
(phaseMA; Q5 andR
S
sre commonwhit the phase MB).
Figure25:
Slow decay of the motor current I
p
/2 during t
off
(phaseMA).
L6223
20/33
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6226 | DMOS DUAL FULL BRIDGE DRIVER |
| L6226D | DMOS DUAL FULL BRIDGE DRIVER |
| L6226N | DMOS DUAL FULL BRIDGE DRIVER |
| L6226PD | DMOS DUAL FULL BRIDGE DRIVER |
| L6228 | DMOS DRIVER FOR BIPOLAR STEPPER MOTOR |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6223A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
| L6225 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225_03 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:DMOS DUAL FULL BRIDGE DRIVER |
| L6225D | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| L6225DTR | 功能描述:馬達/運動/點火控制器和驅(qū)動器 Dual Full Bridge RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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