5秒后页面跳转
捷配首页

Datasheet > TL2845BDRG4-8
TL2845BDRG4-8 PDF预览

TL2845BDRG4-8

更新时间： 2024-11-27 02:58:47
品牌 Logo 应用领域
德州仪器 - TI /
页数 文件大小 规格书
21页 339K
描述
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

阅读下载

中文翻译

获取价格

TL2845BDRG4-8 数据手册

 浏览型号TL2845BDRG4-8的Datasheet PDF文件第2页浏览型号TL2845BDRG4-8的Datasheet PDF文件第3页浏览型号TL2845BDRG4-8的Datasheet PDF文件第4页浏览型号TL2845BDRG4-8的Datasheet PDF文件第5页浏览型号TL2845BDRG4-8的Datasheet PDF文件第6页浏览型号TL2845BDRG4-8的Datasheet PDF文件第7页 
TL284xB, TL384xB  
HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS  
www.ti.com  
SLVS610A–AUGUST 2006–REVISED SEPTEMBER 2006  
FEATURES  
D (SOIC) OR P (PDIP) PACKAGE  
(TOP VIEW)  
•
•
•
•
•
Low Start-Up Current (<0.5 mA)  
Trimmed Oscillator Discharge Current  
Current Mode Operation to 500 kHz  
Automatic Feed-Forward Compensation  
COMP  
VFB  
V
V
1
2
3
4
8
7
6
5
REF  
CC  
I
OUTPUT  
GND  
SENSE  
Latching PWM for Cycle-by-Cycle Current  
Limiting  
R /C  
T
T
•
•
•
Internally Trimmed Reference With  
Undervoltage Lockout  
D (SOIC) PACKAGE  
(TOP VIEW)  
High-Current Totem-Pole Output  
Undervoltage Lockout With Hysteresis  
COMP  
NC  
1
2
3
4
5
6
7
14  
13  
12  
11  
10  
9
V
REF  
NC  
V
Double-Pulse Suppression  
VFB  
NC  
CC  
VC  
OUTPUT  
I
SENSE  
GND  
NC  
8
R /C  
POWER GROUND  
T
T
NC − No internal connection  
DESCRIPTION/ORDERING INFORMATION  
The TL284xB and TL384xB series of control integrated circuits provide the features that are necessary to  
implement off-line or dc-to-dc fixed-frequency current-mode control schemes, with a minimum number of  
external components. Internally implemented circuits include an undervoltage lockout (UVLO) and a precision  
reference that is trimmed for accuracy at the error amplifier input. Other internal circuits include logic to ensure  
latched operation, a pulse-width modulation (PWM) comparator that also provides current-limit control, and a  
totem-pole output stage designed to source or sink high-peak current. The output stage, suitable for driving  
N-channel MOSFETs, is low when it is in the off state.  
The TL284xB and TL384xB series are pin compatible with the standard TL284x and TL384x with the following  
improvements. The start-up current is specified to be 0.5 mA (max), while the oscillator discharge current is  
trimmed to 8.3 mA (typ). In addition, during undervoltage lockout conditions, the output has a maximum  
saturation voltage of 1.2 V while sinking 10 mA (VCC = 5 V).  
Major differences between members of these series are the UVLO thresholds and maximum duty-cycle ranges.  
Typical UVLO thresholds of 16 V (on) and 10 V (off) on the TLx842B and TLx844B devices make them ideally  
suited to off-line applications. The corresponding typical thresholds for the TLx843B and TLx845B devices are  
8.4 V (on) and 7.6 V (off). The TLx842B and TLx843B devices can operate to duty cycles approaching 100%. A  
duty-cycle range of 0% to 50% is obtained by the TLx844B and TLx845B by the addition of an internal toggle  
flip-flop, which blanks the output off every other clock cycle.The TL284xB-series devices are characterized for  
operation from –40°C to 85°C. The TL384xB-series devices are characterized for operation from 0°C to 70°C.  
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.  
Copyright © 2006, Texas Instruments Incorporated  
Products conform to specifications per the terms of the Texas  
Instruments standard warranty. Production processing does not  
necessarily include testing of all parameters.  
1234567...21

中文翻译

下载PDF

TL2845BDRG4-8 替代型号

型号 品牌 替代类型 描述 数据表
TL2845BDR-8 TI

完全替代

 HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
TL2845BD-8 TI

完全替代

 HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS

与TL2845BDRG4-8相关器件

型号 品牌 获取价格 描述 数据表
TL2845BP TI

获取价格

 		HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
TL2845BPE4 TI

获取价格

 		HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLERS
TL2845BQDRQ1 TI

获取价格

 		HIGH-PERFORMANCE CURRENT-MODE PWM CONTROLLER
TL2845D TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845D-8 TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845DE4 TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845DE4-8 TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845DG4 TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845DG4-8 TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS
TL2845DR TI

获取价格

 		CURRENT-MODE PWM CONTROLLERS

与TL2845BDRG4-8相关文章

您还可以找


热门产品
PCB打样/小批量
铝基板
BOM智能配单
PCBA制造
钣金
精密CNC
模具注塑
薄膜开关
精选活动
PCBA打样特惠
四六层板品质升级
铝基板品质升级
一体化电子制造
DFM下载
服务支持
企业认证
产品展示
工厂展示
工艺能力
积分商城
关于捷配
捷配简介
企业文化
公司动态
人才招聘
联系我们
帮助中心
下单流程
付款流程
开票流程
常见问题
全球PCB制造服务专线 400-613-0088

工作时间：9:00-21:00

CEO邮箱：ceo@jiepei.com

投诉邮箱：tousu@jiepei.com

捷配网-微信公众号 微信公众号
捷配网-微信公众号 抖音公众号
资质认证：
合作快递：
支付方式：
Copyright © 2024 Jiepei.com Inc. All Rights Reserved. 版权所有:杭州捷配信息科技有限公司 浙公网安备 33010502006866号 浙ICP备10014259号-119 营业执照ICP证