Datasheet > UCC1895_13

UCC1895_13

更新时间： 2024-11-28 12:27:27

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
28页	609K
描述
BiCMOS Advanced Phase-Shift PWM Controller

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UCC1895_13 数据手册

UCC1895, UCC2895, UCC3895

www.ti.com

SLUS157P –DECEMBER 1999–REVISED JUNE 2013

BiCMOS Advanced Phase-Shift PWM Controller

Check for Samples: UCC1895, UCC2895, UCC3895

FEATURES

DESCRIPTION

The UCC3895 is a phase-shift PWM controller that

•

Programmable-Output Turnon Delay

Adaptive Delay Set

implements control of a full-bridge power stage by

phase shifting the switching of one half-bridge with

respect to the other. The device allows constant

frequency pulse-width modulation in conjunction with

resonant zero-voltage switching to provide high

efficiency at high frequencies. The part is used either

as a voltage-mode or current-mode controller.

Bidirectional Oscillator Synchronization

Voltage-Mode, Peak Current-Mode, or Average

Current-Mode Control

•

Programmable Softstart, Softstop and Chip

Disable via a Single Pin

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. Because the device is built using

the BCDMOS process, it operates with dramatically

less supply current than it’s bipolar counterparts. The

UCC3895 operates with a maximum clock frequency

of 1 MHz.

•

0% to 100% Duty-Cycle Control

7-MHz Error Amplifier

Operation to 1 MHz

Typical 5-mA Operating Current at 500 kHz

Very Low 150-μA Current During UVLO

APPLICATIONS

•

Phase-Shifted Full-Bridge Converters

Off-Line, Telecom, Datacom and Servers

Distributed Power Architecture

High-Density Power Modules

UCC3895

EAN

EAP 270

SS/DISB 19

OUTA 18

OUTB 17

PGND 16

VCC 15

V_OUT

EAOUT

RAMP

REF

GND

SYNC

V_IN

V_BIAS

OUTC 14

OUTD 13

CS 12

DELAB

10 DELCD

ADS 11

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.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

12 3 4 5 6 7...28

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与UCC1895_13相关器件

型号	品牌	获取价格	描述	数据表
UCC1895J	TI	获取价格	BiCMOS ADVANCED PHASE-SHIFT PWM CONTROLLER
UCC1895J883B	TI	获取价格	0.1A SWITCHING CONTROLLER, 1000kHz SWITCHING FREQ-MAX, CDIP8, CERAMIC, DIP-8
UCC1895L	TI	获取价格	BiCMOS ADVANCED PHASE-SHIFT PWM CONTROLLER
UCC1913	TI	获取价格	Negative Voltage Hot Swap Power Manager
UCC1913D	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8, 0.150 INCH, PLASTIC, SOIC-8
UCC1913DTR	TI	获取价格	暂无描述
UCC1913J	ROCHESTER	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8, CERAMIC, DIP-8
UCC1913J	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, CDIP8
UCC1913N	TI	获取价格	1-CHANNEL POWER SUPPLY SUPPORT CKT, PDIP8, PLASTIC, DIP-8
UCC1917	TI	获取价格	Positive Floating Hot Swap Power Manager

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