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參數(shù)資料
| 型號： | 5962-9168901MXA |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | BRUSHLESS DC MOTOR CONTROLLER, 2 A, CDIP28 |
| 封裝： | CERAMIC, DIP-28 |
| 文件頁數(shù)： | 7/23頁 |
| 文件大?。?/td> | 466K |
| 代理商： | 5962-9168901MXA |
www.ti.com
Fast High-Side N-Channel Driver with Transformer Isolation
2
8
7
1
6
5
4
3
1
2
6
7
4
8
UC3724N
UC3725N
1:2
PUA
33kW
3
+12V
1nF
5kW
100nF
VMOTOR
TO MOTOR
SLUS353B – NOVEMBER 2003 – REVISED APRIL 2007
A small pulse transformer can provide excellent isolation between the UC3625 and a high-voltage N-Channel
MOSFET while also coupling gate drive power. In this circuit (shown in Figure 13), a UC3724 is used as a
transformer driver/encoder that duty-cycle modulates the transformer with a 150-kHz pulse train. The UC3725
rectifies this pulse train for gate drive power, demodulates the signal, and drives the gate with over 2-A peak
current.
Figure 13. Fast High-Side N-Channel Driver with Transformer Isolation
Both the UC3724 and the UC3725 can operate up to 500 kHz if the pulse transformer is selected appropriately.
To raise the operating frequency, either lower the timing resistor of the UC3724 (1 k
min), lower the timing
capacitor of the UC3724 (500 pF min) or both.
If there is significant capacitance between transformer primary and secondary, together with very high output
slew rate, then it may be necessary to add clamp diodes from the transformer primary to 12 V and ground.
General purpose small signal switching diodes such as 1N4148 are normally adequate.
The UC3725 also has provisions for MOSFET current limiting. Consult the UC3725 data sheet for more
information on implementing this.
15
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| 5962-9168902VYA | 功能描述:馬達(dá)/運動/點火控制器和驅(qū)動器 SPACE-RATE BRUSHLESS DC MOTOR CONTROLLER RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
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| 5962-9169003MXA | 制造商:Analog Devices 功能描述:ADC Single SAR 12-bit Parallel 28-Pin CDIP 制造商:Analog Devices 功能描述:ADC SGL SAR 12-BIT PARALLEL 28CDIP - Rail/Tube 制造商:Rochester Electronics LLC 功能描述:IC, MONO 12-BIT ADC IC - Bulk 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC IC MONO 12-BIT ADC IC 制造商:Analog Devices 功能描述:CONVERTER - ADC |
| 5962-9169004M3C | 制造商:Exar Corporation 功能描述: |
| 5962-9169005M3A | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
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