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參數(shù)資料
| 型號： | 2543 |
| 廠商： | Allegro MicroSystems, Inc. |
| 英文描述： | PROTECTED QUAD POWER DRIVER |
| 中文描述： | 四功率驅動保護 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 135K |
| 代理商： | 2543 |
2543
PROTECTED
QUAD POWER DRIVER
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
TYPICAL OUTPUT BEHAVIOR
CIRCUIT DESCRIPTION AND APPLICATION
INCANDESCENT LAMP DRIVER
For incandescent lamp applications, the UDx2549B/EB or
UDx2559B/EB, with improved shortcircuit protection and thermal
limiting, are recommended.
INDUCTIVE LOAD DRIVER
Bifilar (unipolar) stepper motors, relays, or solenoids can be driven
directly. The internal flyback diodes prevent damage to the output
transistors by suppressing the high-voltage spikes that occur when
turning OFF an inductive load. For rapid current decay (fast turn-OFF
speeds), the use of Zener diodes will raise the flyback voltage and
improve performance. However, the peak voltage must not exceed the
specified minimum sustaining voltage (V
SUPPLY
+ V
Z
+ V
F
≤
V
OUT(SUS)
).
FAULT CONDITIONS
In the event of a shorted load, the load current will attempt to
increase. As described above, the drive current to the affected
output stage is diverted, causing the output stage to go linear, limiting
the peak output current to approximately 1 A. As the power dissipation
of that output stage increases, a thermal gradient sensing circuit will
become operational, further decreasing the drive current to the af-
fected output stage and reducing the output current to a value depen-
dent on supply voltage (I
OUT
≈
2.4/V
SUPPLY
). If the fault condition is
corrected, the output stage will return to its normal saturated condition.
Due to the independent operation of the four channels, only
a single channel should be shorted at a time. Multiple overload
conditions may be tolerated provided rated package power
dissipation is not exceeded.
NORMAL LOAD
TIME
Dwg. WP-013-1
NOT TO SCALE
O
CURRENT LIMIT (12 V SUPPLY)
SHORT CIRCUIT
CURRENT LIMIT (24 V SUPPLY)
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 25430/12 BK005 | 功能描述:12 Conductor Multi-Conductor Cable Black 18 AWG Foil 100.0' (30.5m) 制造商:alpha wire 系列:Xtra-Guard? 2 零件狀態(tài):有效 電纜類型:多芯 導體數(shù):12 線規(guī):18 AWG 導線股數(shù):16/30 導體材料:銅，鍍錫 護套（絕緣）材料:聚氨脂（PU） 護套（絕緣）直徑:0.595"（15.11mm） 屏蔽類型:箔 長度:100.0'（30.5m） 套管顏色:黑 等級:ISO 10993，UL 式 20952 特性:生物相容性，加蔽線，拉繩 電壓:600V 工作溫度:-30°C ~ 105°C 使用:- 導體絕緣:聚氯乙烯（PVC） 護套（絕緣）厚度:0.063"（1.60mm） 屏蔽材料:鋁 屏蔽范圍:1 標準包裝:10 |
| 25430/12 BK199 | 制造商:Alpha Wire Company 功能描述:25430/12 BLACK 1000 = 1000 FT |
| 25430/12-YL199 | 制造商:Alpha Wire 功能描述: |
| 25430/15 BK005 | 功能描述:15 Conductor Multi-Conductor Cable Black 18 AWG Foil 100.0' (30.5m) 制造商:alpha wire 系列:Xtra-Guard? 2 零件狀態(tài):有效 電纜類型:多芯 導體數(shù):15 線規(guī):18 AWG 導線股數(shù):16/30 導體材料:銅，鍍錫 護套（絕緣）材料:聚氨脂（PU） 護套（絕緣）直徑:0.647"（16.43mm） 屏蔽類型:箔 長度:100.0'（30.5m） 套管顏色:黑 等級:ISO 10993，UL 式 20952 特性:生物相容性，加蔽線，拉繩 電壓:600V 工作溫度:-30°C ~ 105°C 使用:- 導體絕緣:聚氯乙烯（PVC） 護套（絕緣）厚度:0.063"（1.60mm） 屏蔽材料:鋁 屏蔽范圍:1 標準包裝:10 |
| 25430/15 BK199 | 制造商:Alpha Wire Company 功能描述:25430/15 BLACK 1000 = 1000 FT |
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