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Datasheet > 电源电路 > 开关式稳压器或控制器> UCC2808AQPWR-1Q1
UCC2808AQPWR-1Q1 PDF预览

UCC2808AQPWR-1Q1

更新时间： 2024-11-24 04:48:15
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光电二极管信息通信管理
页数 文件大小 规格书
11页 247K
描述
LOW POWER CURRENT MODE PUSH-PULL PWM

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UCC2808AQPWR-1Q1 技术参数

生命周期：Obsolete零件包装代码：SOIC
包装说明：PLASTIC, TSSOP-8针数：8
Reach Compliance Code：unknownECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：5.72
Is Samacsys：N模拟集成电路 - 其他类型：SWITCHING CONTROLLER
控制模式：CURRENT-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：13 V最小输入电压：7.6 V
标称输入电压：10 VJESD-30 代码：R-PDSO-G8
长度：4.9 mm功能数量：1
端子数量：8最高工作温度：125 °C
最低工作温度：-40 °C最大输出电流：1 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：TSSOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE认证状态：Not Qualified
筛选级别：AEC-Q100座面最大高度：1.75 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：PUSH-PULL最大切换频率：213 kHz
技术：BICMOS温度等级：AUTOMOTIVE
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL宽度：3.9 mm
Base Number Matches：1

UCC2808AQPWR-1Q1 数据手册

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SGLS183 − AUGUST 2003  
D
Qualification in Accordance With  
AEC-Q100  
D
On-Chip Error Amplifier With 2-MHz Gain  
Bandwidth Product  
†
D
Qualified for Automotive Applications  
D
On Chip VDD Clamping  
D
Customer-Specific Configuration Control  
Can Be Supported Along With  
Major-Change Approval  
D
Output Drive Stages Capable of 500-mA  
Peak-Source Current, 1-A Peak-Sink  
Current  
D PACKAGE  
(TOP VIEW)  
D
ESD Protection Exceeds 1500 V Per  
MIL-STD-883, Method 3015; Exceeds 200 V  
Using Machine Model (C = 200 pF, R = 0)  
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VDD  
COMP  
FB  
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Dual Output Drive Stages in Push-Pull  
Configuration  
OUTA  
OUTB  
GND  
CS  
RC  
Current Sense Discharge Transistor to  
Improve Dynamic Response  
D
D
D
D
130-µA Typical Starting Current  
1-mA Typical Run Current  
Operation to 1 MHz  
PW PACKAGE  
(TOP VIEW)  
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OUTA  
VDD  
COMP  
FB  
OUTB  
GND  
RC  
Internal Soft Start  
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4
†
Contact factory for details. Q100 qualification data available on  
request.  
CS  
description  
The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The  
UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency  
current-mode switching power supplies with minimal external parts count.  
The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half  
the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to  
200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle  
to less than 50%.  
The UCC2808A family offers a variety of package options and choice of undervoltage lockout levels. The family  
has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown  
in the ordering information table.  
The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions  
feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during  
the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps  
minimize filter capacitor values and current sense delay.  
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.  
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Copyright 2003 Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...11

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