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參數(shù)資料
| 型號(hào)： | 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(shí)間控制 |
| 文件頁(yè)數(shù)： | 8/19頁(yè) |
| 文件大小： | 336K |
| 代理商： | UCC28089DRB |
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SLUS623 SEPTEMBER 2004
8
www.ti.com
APPLICATION INFORMATION
Using the UCC28089 as the Primary-Side start-up Controller in a Cascaded Push-Pull Buck
Two-Stage Converter
The cascaded push-pull topology is ideal for converting from moderate bus voltages, such as 48-V telecom
buses, to sub 2-V output voltages. The general topology is shown in Figure 2 using the UCC28089 as the
primary-side start-up controller and the UCC2540 as the secondary-side regulator [3].
UDG-04100
CT
RB
RA
10 V
CR1
CR2
VIN = 48 V
VO
1.2 V
2
1
4
3
7
8
5
6
UCC28089
SYNC
DIS
CT
CS
VDD
OUTA
OUTB
GND
+
IN
OUT
COM
L.REG
2
1
4
3
19
20
17
18
UCC2540
ISET/SD
REF
G2C
SYNCIN
SWS
BST
G1
SW
6
5
8
7
RAMP
GND
VEA
CEA
10
9 COMP
TR
15
16
13
14
VDD
PGND
G2
VDRV
11
12
G2S
SS
+
Figure 2. Cascaded Push-Pull Buck Two-Stage Converter
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| UCC2813NTR-0 | Low Power Economy BiCMOS Current Mode PWM |
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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(dòng)器IC Primary Side P-P Driver RoHS:否 制造商:Micrel 產(chǎn)品:MOSFET Gate Drivers 類(lèi)型:Low Cost High or Low Side MOSFET Driver 上升時(shí)間: 下降時(shí)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(chēng):Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
| UCC2808A-1EP | 制造商:TI 制造商全稱(chēng):Texas Instruments 功能描述:LOW POWER CURRENT MODE PUSH-PULL PWM |
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