- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385498 > LQB08A (National Semiconductor Corporation) Single-Ended Input Motor Driver PDF資料下載
參數(shù)資料
| 型號(hào)： | LQB08A |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Single-Ended Input Motor Driver |
| 中文描述： | 單端輸入電機(jī)驅(qū)動(dòng)器 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 616K |
| 代理商： | LQB08A |
Application Information
BRIDGE CONFIGURATION EXPLANATION
The LM4570 uses a bridged architecture that drives a load
differentially. The BTL design offers several advantages over
a single-ended design. The the device outputs, V
1 and
V
2, both source and sink current, which means that the
polarity of the voltage across the motor can be reversed
quickly (Figure 2). A single-ended device would need to
operate from split supplies to achieve this behavior. The
ability to reverse the voltage polarity is necessary in appli-
cations where a negative (reverse polarity) pulse is used to
quickly stop the motor. If the drive voltage is just removed
from the motor (not reversed) then the motor will continue to
spin until the residual energy stored in the windings has
dissipated.
The output voltage of the LM4570 is determined by the
difference between the input voltage and V
REF1
, as well as
the differential gain of the device. The output voltage is given
by the following:
V
O
1–V
O
2 = A
VD
(V
IN
–V
REF1
)
For input voltages that are less than the reference voltage,
the differential output voltage is negative. For input voltages
that are greater than the reference voltage, the differential
output voltage is positive. For example, when operating from
a 5V supply (V
= 2.5V) and with a differential gain of
6dB, with a 1V input, the voltage measured across V
1 and
V
2 is -3V, with a 4V input, the differential output voltage is
+3V.
20186302
FIGURE 2. Voltage Polarity and Motor Direction
L
www.national.com
8
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LS248 | BCD TO 7-SEGMENT DECODER |
| LT-5 | Axial Lead and Cartridge Fuses |
| LT1003 | 5V,5A,Voltage Regulator(5V,5A輸出,線性穩(wěn)壓器) |
| LT1004 | Micropower Voltage Reference(微功耗電壓基準(zhǔn)) |
| LT1015 | High Speed Dual Line Receiver(高速雙路線性接收器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LQB10A15NJ00T1M0-501 | 制造商:Murata Manufacturing Co Ltd 功能描述: |
| LQB15MN1N0B02B | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Chip Inductor (Chip Coil) for High Frequency Film Type LQP15M Series |
| LQB15MN1N0W02B | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Chip Inductor (Chip Coil) for High Frequency Film Type LQP15M Series |
| LQB15MN1N1B02B | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Chip Inductor (Chip Coil) for High Frequency Film Type LQP15M Series |
| LQB15MN1N1W02B | 制造商:MURATA 制造商全稱:Murata Manufacturing Co., Ltd. 功能描述:Chip Inductor (Chip Coil) for High Frequency Film Type LQP15M Series |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。