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參數(shù)資料
| 型號： | UCC28089DRB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PRIMARY-SIDE PUSH-PULL OSCILLATOR WITH DEAD-TIME CONTROL |
| 中文描述： | 一次側(cè)推拉振蕩器死區(qū)時間控制 |
| 文件頁數(shù)： | 11/19頁 |
| 文件大?。?/td> | 336K |
| 代理商： | UCC28089DRB |
SLUS623 SEPTEMBER 2004
11
www.ti.com
APPLICATION INFORMATION
Using the UCC28089 as a Modified Square Wave Inverter
Remote or dc-only power systems often require a limited amount of 60-Hz ac line power to supply small
appliances. Compatible loads include universal motors, incandescent lamps, and other electronic devices with
switched mode power supplies to convert the 110-V
AC
to lower dc voltages. Many of these devices do not require
a perfect sinusoidal line voltage, and acceptable performance can be obtained with a modified square wave
voltage. Using the circuit in Figure 5, the UCC28089 can provide the appropriate waveform along with primary
side over-current protection. Components RA, RB, and CT are selected to program the desired modified square
waveform with the appropriate dead time.
UDG-04105
CT
0.1
μ
F
RB
27 k
RA
221 k
NC
1
200
47
μ
F
12 V Bias
VIN = 145 VDC
F1
RS
4.7
μ
F
MPSA42
MPSA42
4.7
μ
F
145 V
16.7 ms
145 V
0 V
VO
110 VAC(rms)
NOTE:
CS signal should be selected to limit peak inrush current to acceptable levels.
1N4003
2
4
3
7
8
5
6
UCC28089
SYNC
DIS
CT
CS
VDD
OUTA
OUTB
GND
+
6800 pF
6800 pF
50
200
200
50
200
20
Figure 5. Modified Square Wave Inverter
The high-side gate drives of the inverter in Figure 5 are suitable for low frequency applications with relatively
constant duty ratio. The NPN transistors and the charge pump diodes on the high-side gate drives must be rated
for high voltage (at least 145 V + VDD). The gates are protected from excessive negative voltage by the diodes
shown from gate to source.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| UCC28089DRBR | 制造商:Texas Instruments 功能描述:PRIMARY SIDE PUSH-PULL DRIVER WITH DEAD-TIME CONTROL - Tape and Reel |
| UCC28089DRBT | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| UCC28089DRG4 | 功能描述:功率驅(qū)動器IC Primary Side P-P Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類型:Low Cost High or Low Side MOSFET Driver 上升時間: 下降時間: 電源電壓-最大:30 V 電源電壓-最小:2.75 V 電源電流: 最大功率耗散: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 封裝:Tube |
| UCC2808A-1 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
| UCC2808A-1EP | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
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