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參數(shù)資料
| 型號(hào)： | L6221N |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | Quad Darlington Switches(四通道達(dá)林頓晶體管開關(guān)) |
| 中文描述： | 四達(dá)林頓開關(guān)（四通道達(dá)林頓晶體管開關(guān)） |
| 文件頁數(shù)： | 9/15頁 |
| 文件大?。?/td> | 156K |
| 代理商： | L6221N |
Figure 19 :
Driver for Solenoids up to 3A
.
Somecaremustbe takento ensurethatthecollec-
torsareplacedclosetogethertoavoiddifferentcur-
rentpartitioningat turn-off.
We suggestto put in parallel channel1 and 4 and
channel2and3 asshowninfigure19forthesimilar
electricalcharacteristicsofthelogicsection(turn-on
and turn-offdelaytime) andthe power stages(col-
lector saturation voltage, free-wheeling diode for-
ward voltage).
APPLICATION INFORMATION
When inductive loads are driven by L6221A/N, a
zenerdiodeinserieswiththeintegralfree-wheeling
diodes increases the voltage across which energy
stored in the load is discharged and therefore
speedsthe current decay(fig. 18).
Forreliabilityitissuggestedthatthezenerischosen
sothat V
p
+ V
z
< 35 V.
The reasonsfor this are two fold :
1) The zener voltage changes in temperatureand
current.
2)Theinstantaneouspowermustbelimitedtoavoid
thereversesecondbreakdown.
Figure 18.
L6221A - L6221AD - L6221N
9/15
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| L6221CD | Quad Darlington Switches(四通道達(dá)林頓開關(guān)) |
| L6221CN | Quad Darlington Switches(四通道達(dá)林頓開關(guān)) |
| L6221C | Quad Darlington Switches(四通道達(dá)林頓晶體管開關(guān)) |
| L6225 | DUAL DMOS FULL BRIDGE MOTOR DRIVER |
| L6225D | DUAL DMOS FULL BRIDGE MOTOR DRIVER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6222 | 制造商:SGS 功能描述:6222 SGS'88 |
| L6223 | 制造商:STMicroelectronics 功能描述:Stepper Motor Driver 32V 20-Pin Power DIP |
| 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 |
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