參數(shù)資料
型號(hào)： UC1625N
廠商： Texas Instruments, Inc.
英文描述： Brushless DC Motor Controller
中文描述： 無(wú)刷直流電機(jī)控制器
文件頁(yè)數(shù)： 11/15頁(yè)
文件大?。?/td> 313K
代理商： UC1625N
11
UC1625
UC2625
UC3625
For drives where speed is critical, P-Channel MOSFETs
can be driven by emitter followers as shown in Fig. 8.
Here, both the level shift NPN and the PNP must with-
stand high voltages. A zener diode is used to limit
gate-source voltage on the MOSFET. A series gate re-
sistor is not necessary, but always advisable to control
overshoot and ringing.
High-voltage optocouplers can quickly drive high-voltage
MOSFETs if a boost supply of at least 10 volts greater
than the motor supply is provided (See Fig. 9.) To protect
the MOSFET, the boost supply should not be higher than
18 volts above the motor supply.
For under 200V 2-quadrent applications, a power NPN
driven by a small P-Channel MOSFET will perform well
as a high-side driver as in Fig. 10. A high voltage
small-signal NPN is used as a level shift and a high volt-
age low-current MOSFET provides drive. Although the
NPN will not saturate if used within its limitations, the
base-emitter resistor on the NPN is still the speed limiting
component.
Fig. 11 shows a power NPN Darlington drive technique
using a clamp to prevent deep saturation. By limiting sat-
uration of the power device, excessive base drive is mini-
mized and turn-off time is kept fairly short. Lack of base
series resistance also adds to the speed of this ap-
proach.
Figure 9. Optocoupled N-channel high-side driver.
Figure 8. Fast high-side P-channel driver.
APPLICATION INFORMATION (cont.)
Figure 11. Power NPN low-side driver.
Figure 10. Power NPN high-side driver.
相關(guān)PDF資料
PDF描述
UC3711J Dual Ultra High-Speed FET Driver
UC382TDTR-2 3A Fixed Low Dropout Linear Regulator (LDO)
UC2825BQTR Double channel high side driver with analog current sense for automotive applications
UC2825L Double channel high side driver for automotive applications
UC2826DW Double channel high side driver for automotive applications
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
UC1625-SP 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:RAD-TOLERANT CLASS V, BRUSHLESS DC MOTOR CONTROLLER
UC1633 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:Phase Locked Frequency Controller
UC1633 WAF 制造商:Texas Instruments 功能描述:
UC1633J883BS 制造商:Texas Instruments 功能描述:- Rail/Tube
UC1633L 制造商:Texas Instruments 功能描述:FREQUENCY CONTROLLER - Rail/Tube
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*