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UCC1895L PDF预览

UCC1895L

更新时间: 2024-01-12 03:14:18
品牌 Logo 应用领域
德州仪器 - TI 稳压器开关式稳压器或控制器电源电路开关式控制器信息通信管理
页数 文件大小 规格书
25页 668K
描述
BiCMOS ADVANCED PHASE-SHIFT PWM CONTROLLER

UCC1895L 技术参数

生命周期:Active零件包装代码:QLCC
包装说明:QCCN, LCC20,.35SQ针数:20
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:16 weeks
风险等级:5.65其他特性:ALSO OPERATES IN CURRENT MODE
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:16.5 V
最小输入电压:10 V标称输入电压:12 V
JESD-30 代码:S-CQCC-N20长度:8.89 mm
功能数量:1端子数量:20
最高工作温度:125 °C最低工作温度:-55 °C
最大输出电流:0.1 A最大输出电压:5.06 V
最小输出电压:4.94 V标称输出电压:5 V
封装主体材料:CERAMIC, METAL-SEALED COFIRED封装代码:QCCN
封装等效代码:LCC20,.35SQ封装形状:SQUARE
封装形式:CHIP CARRIER峰值回流温度(摄氏度):NOT SPECIFIED
认证状态:Not Qualified座面最大高度:2.03 mm
子类别:Switching Regulator or Controllers最大供电电流 (Isup):6 mA
标称供电电压 (Vsup):12 V表面贴装:YES
切换器配置:PHASE-SHIFT最大切换频率:1000 kHz
技术:BICMOS温度等级:MILITARY
端子形式:NO LEAD端子节距:1.27 mm
端子位置:QUAD处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:8.89 mmBase Number Matches:1

UCC1895L 数据手册

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ꢁꢁ  
ꢁꢁ  
SLUS157L − DECEMBER 1999 − REVISED APRIL 2008  
FEATURES  
DESCRIPTION  
D
D
D
D
Programmable Output Turn-on Delay  
The UCC3895 is a phase-shift PWM controller  
Adaptive Delay Set  
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 modulation in  
conjunction with resonant zero-voltage switching  
to provide high efficiency at high frequencies. The  
part can be used either as a voltage-mode or  
current-mode controller.  
Bidirectional Oscillator Synchronization  
Voltage-Mode, Peak Current-Mode, or  
Average Current-Mode Control  
D
Programmable Softstart/Softstop and Chip  
Disable via a Single Pin  
D
D
D
D
D
0% to 100% Duty-Cycle Control  
7-MHz Error Amplifier  
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 capability. Since it is built using  
the BCDMOS process, it operates with  
dramatically less supply current than it’s bipolar  
counterparts. The UCC3895 can operate with a  
maximum clock frequency of 1 MHz.  
Operation to 1 MHz  
Typical 5-mA Operating Current at 500 kHz  
Very Low 150-µA Current During UVLO  
APPLICATIONS  
D
D
D
D
Phase-Shifted Full-Bridge Converters  
Off-Line, Telecom, Datacom and Servers  
Distributed Power Architecture  
High-Density Power Modules  
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  
V
OUT  
EAOUT  
RAMP  
REF  
A
C
GND  
SYNC  
CT  
V
IN  
V
BIAS  
OUTC 14  
OUTD 13  
CS 12  
B
D
RT  
DELAB  
10 DELCD  
ADS 11  
UDG−03123  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
ꢗꢥ  
Copyright 2008, Texas Instruments Incorporated  
ꢡ ꢥ ꢢ ꢡꢉ ꢛꢯ ꢝꢜ ꢠ ꢨꢨ ꢦꢠ ꢞ ꢠ ꢟ ꢥ ꢡ ꢥ ꢞ ꢢ ꢪ  
1
www.ti.com  

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