參數(shù)資料
型號(hào): L6221A
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(kāi)關(guān))
中文描述: 四達(dá)林頓開(kāi)關(guān)(四通道達(dá)林頓晶體管開(kāi)關(guān))
文件頁(yè)數(shù): 9/15頁(yè)
文件大小: 156K
代理商: L6221A
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
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L6221N Quad Darlington Switches(四通道達(dá)林頓晶體管開(kāi)關(guān))
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
L6221AD 功能描述:達(dá)林頓晶體管 1.8 Amp Quad Switch RoHS:否 制造商:Texas Instruments 配置:Octal 晶體管極性:NPN 集電極—發(fā)射極最大電壓 VCEO:50 V 發(fā)射極 - 基極電壓 VEBO: 集電極—基極電壓 VCBO: 最大直流電集電極電流:0.5 A 最大集電極截止電流: 功率耗散: 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-18 封裝:Reel
L6221AD013TR 功能描述:達(dá)林頓晶體管 1.8 Amp Quad Switch RoHS:否 制造商:Texas Instruments 配置:Octal 晶體管極性:NPN 集電極—發(fā)射極最大電壓 VCEO:50 V 發(fā)射極 - 基極電壓 VEBO: 集電極—基極電壓 VCBO: 最大直流電集電極電流:0.5 A 最大集電極截止電流: 功率耗散: 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-18 封裝:Reel
L6221AS 功能描述:達(dá)林頓晶體管 1.8 Amp Quad Switch RoHS:否 制造商:Texas Instruments 配置:Octal 晶體管極性:NPN 集電極—發(fā)射極最大電壓 VCEO:50 V 發(fā)射極 - 基極電壓 VEBO: 集電極—基極電壓 VCBO: 最大直流電集電極電流:0.5 A 最大集電極截止電流: 功率耗散: 最大工作溫度:+ 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-18 封裝:Reel
L6221C 制造商:STMicroelectronics 功能描述:3.2 A 4 CHANNEL, AND GATE BASED PRPHL DRVR, PDIP16
L6221C_03 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:QUAD DARLINGTON SWITCH