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UCC2895N

更新时间： 2024-11-20 22:59:31
品牌 Logo 应用领域
德州仪器 - TI 控制器
页数 文件大小 规格书
14页 291K
描述
BiCMOS Advanced Phase Shift PWM Controller

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中文翻译

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UCC2895N 数据手册

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application  
INFO  
UCC1895  
UCC2895  
UCC3895  
available  
BiCMOS Advanced Phase Shift PWM Controller  
FEATURES  
DESCRIPTION  
• Programmable Output Turn-on Delay  
The UCC3895 is a phase shift PWM controller that implements control of a  
full-bridge power stage by phase shifting the switching of one half-bridge  
with respect to the other. It allows constant frequency pulse-width modula-  
tion in conjunction with resonant zero-voltage switching to provide high effi-  
ciency at high frequencies. The part can be used either as a voltage mode  
or current mode controller.  
• Adaptive Delay Set  
• Bidirectional Oscillator Synchronization  
• Capability for Voltage Mode or Current  
Mode Control  
While the UCC3895 maintains the functionality of the UC3875/6/7/8 family  
and UC3879, it improves on that controller family with additional features  
such as enhanced control logic, adaptive delay set, and shutdown capabil-  
ity. Since it is built in BCDMOS, it operates with dramatically less supply  
current than it’s bipolar counterparts. The UCC3895 can operate with a  
maximum clock frequency of 1MHz.  
• Programmable Soft Start/Soft Stop  
and Chip Disable via a Single Pin  
• 0% to 100% Duty Cycle Control  
• 7MHz Error Amplifier  
• Operation to 1MHz  
The UCC3895 and UCC2895 are offered in the 20 pin SOIC (DW) pack-  
age, 20 pin PDIP (N) package, 20 pin TSSOP (PW) package, and 20 pin  
PLCC (Q). The UCC1895 is offered in the 20 pin CDIP (J) package, and 20  
pin CLCC package (L).  
• Low Active Current Consumption  
(5mA Typical @ 500kHz)  
• Very Low Current Consumption  
During Undervoltage Lock-out  
(150mA typical)  
SIMPLIFIED APPLICATION DIAGRAM  
UCC3895  
Q1  
1
2
3
4
5
6
7
8
9
EAN  
EAP 20  
SS/DISB 19  
OUTA 18  
OUTB 17  
PGND 16  
VCC 15  
VOUT  
EAOUT  
RAMP  
REF  
A
C
GND  
SYNC  
CT  
VIN  
VBIAS  
OUTC 14  
OUTD 13  
CS 12  
B
D
RT  
DELAB  
10 DELCD  
ADS 11  
UDG-98139  
SLUS157B - DECEMBER 1999 - REVISED JANUARY 2001  
1234567...14

中文翻译

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UCC2895N 替代型号

型号 品牌 替代类型 描述 数据表
UCC3895NG4 TI

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UCC3895N TI

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 BiCMOS Advanced Phase Shift PWM Controller

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