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UCC25705DGK PDF预览

UCC25705DGK

更新时间: 2024-11-30 22:41:47
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脉冲光电二极管
页数 文件大小 规格书
18页 351K
描述
HIGH - SPEED VOLTAGE MODE PULSE MODE WIDTH MODULATOR

UCC25705DGK 技术参数

是否无铅:不含铅是否Rohs认证:符合
生命周期:Active零件包装代码:MSOP
包装说明:TSSOP, TSSOP8,.19针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:1 week
风险等级:0.7Is Samacsys:N
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:15 V
最小输入电压:9 V标称输入电压:11 V
JESD-30 代码:R-PDSO-G8JESD-609代码:e4
长度:3 mm湿度敏感等级:2
功能数量:1端子数量:8
最高工作温度:85 °C最低工作温度:-40 °C
最大输出电流:0.02 A封装主体材料:PLASTIC/EPOXY
封装代码:TSSOP封装等效代码:TSSOP8,.19
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.07 mm子类别:Switching Regulator or Controllers
最大供电电流 (Isup):5 mA标称供电电压 (Vsup):11 V
表面贴装:YES切换器配置:BOOST
最大切换频率:4000 kHz温度等级:INDUSTRIAL
端子面层:Nickel/Palladium/Gold (Ni/Pd/Au)端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:3 mm
Base Number Matches:1

UCC25705DGK 数据手册

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ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢃ ꢆ ꢀꢁꢁ ꢂ ꢃꢄ ꢅ ꢇ ꢆ ꢀꢁꢁ ꢈ ꢃꢄ ꢅ ꢃ ꢆ ꢀꢁ ꢁꢈ ꢃꢄ ꢅꢇ  
ꢉꢊ ꢋꢉ ꢌꢍꢎꢏ ꢏꢐ ꢑꢒ ꢓꢔꢕꢋ ꢏ ꢖ ꢒꢐ ꢏ ꢎꢀꢓ ꢍ ꢏ ꢗ ꢊꢐꢔ ꢉ ꢖ ꢒꢐ ꢀꢓ ꢕꢔꢒ ꢘ  
SLUS473A – NOVEMBER 1999 – REVISED MARCH 2001  
D, OR P PACKAGE  
(TOP VIEW)  
D
D
Greater Than 4-MHz Operation  
Integrated Oscillator / Voltage Feed Forward  
Compensation  
ILIM  
FB  
VDD  
OUT  
GND  
RC  
1
2
3
4
8
7
6
5
D
D
D
D
D
D
D
>4:1 Input Voltage Range  
DGK PACKAGE  
(TOP VIEW)  
VFF  
25-ns Current Limit Delay  
DISCH  
Programmable Maximum Duty Cycle Clamp  
Optocoupler Interface  
1
2
3
4
8
7
6
5
ILIM  
VDD  
50-µA Start-Up Current  
FB  
OUT  
GND  
RC  
4.2-mA Operating Current @ 1 MHz  
VFF  
Smallest Footprint of the 8-pin MSOP  
Package Minimizes Board Area and Height  
DISCH  
description  
The UCC35705 and UCC35706 devices are 8-pin voltage mode primary side controllers with fast over-current  
protection. These devices are used as core high-speed building blocks in high performance isolated and non-isolated  
power converters.  
UCC35705/UCC35706 devices feature a high speed oscillator with integrated feed-forward compensation for  
improved converter performance. A typical current sense to output delay time of 25 ns provides fast response to  
overload conditions. The IC also provides an accurate programmable maximum duty cycle clamp for increased  
protection which can also be disabled for the oscillator to run at maximum possible duty cycle.  
Two UVLO options are offered. The UCC35705 with lower turn-on voltage is intended for dc-to-dc converters while  
the higher turn-on voltage and the wider UVLO range of the UCC35706 is better suited for offline applications.  
The UCC35705/UCC35706 family is offered in 8-pin MSOP (DGK), SOIC (D) and PDIP (P) packages.  
typical application schematic  
+
+
V
OUT  
V
IN  
VDD  
FB  
8
2
4
DISCH  
TPS2829  
5
3
RC  
OUT  
7
1
VFF  
FET DRIVER  
SOFT  
START  
CIRCUIT  
6
GND  
ILIM  
UCC35705/6  
MODE = 1  
UDG-99181  
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.  
ꢔꢦ  
Copyright 2001, Texas Instruments Incorporated  
ꢢ ꢦ ꢣ ꢢꢛ ꢜꢰ ꢞꢝ ꢡ ꢩꢩ ꢧꢡ ꢟ ꢡ ꢠ ꢦ ꢢ ꢦ ꢟ ꢣ ꢫ  
1
www.ti.com  

UCC25705DGK 替代型号

型号 品牌 替代类型 描述 数据表
UCC25705DGKTR TI

完全替代

HIGH - SPEED VOLTAGE MODE PULSE MODE WIDTH MODULATOR

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