Datasheet > 电源电路 > 开关式稳压器或控制器> UCC2882-1Q

UCC2882-1Q

更新时间： 2024-11-26 13:15:07

品牌	Logo	应用领域
德州仪器 - TI		控制器
页数	文件大小	规格书
14页	580K
描述
SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, SOIC-28

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技术参数
数据手册

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UCC2882-1Q 技术参数

生命周期：	Obsolete	零件包装代码：	SOIC
包装说明：	SOIC-28	针数：	28
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.84
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：	15 V	最小输入电压：	10.3 V
标称输入电压：	12 V	功能数量：	1
最高工作温度：	85 °C	最低工作温度：	-25 °C
认证状态：	Not Qualified	切换器配置：	PUSH-PULL
最大切换频率：	700 kHz	技术：	BICMOS
温度等级：	OTHER	Base Number Matches：	1

UCC2882-1Q 数据手册

UCC2882/-1

UCC3882/-1

Average Current Mode Synchronous Controller With 5-Bit DAC

DESCRIPTION

FEATURES

The UCC3882 combines high precision reference and voltage

monitoring circuitry with average current mode PWM synchro-

nous rectification controller circuitry to power high-end micropro-

cessors with a minimum of external components. The UCC3882

converts 5V or 12V to an adjustable output ranging from 1.8VDC

to 2.05VDC in 50mV steps and 2.1VDC to 3.5VDC in 100mV

steps with 1% DC system accuracy.

• Combined DAC/Voltage Monitor and PWM

with Synchronous Rectification Functions

• 5-Bit Digital-to-Analog (DAC) Converter

• 1% DAC/Reference Combined Accuracy

• Compatible with 5V and 12V Systems and

12V-only Systems

The DAC output voltage is directly compatible with Intel’s 5-bit

VID code (Table 1) which covers 1.3V to 2.05V in 50mV steps

and 2.1V to 3.5V in 100mV steps. The accuracy of the DAC/ref-

erence combination is better than 1%. Undervoltage lockout cir-

cuitry assures the correct logic states at the outputs during

power up and power down. The overvoltage and undervoltage

comparators monitor the system output voltage and indicate

when it rises above or falls below its designed value by more

than 9%. A second overvoltage comparator digitally forces

GATEHI off and GATELO on when the system output voltage ex-

ceeds its designed value by more than 17.5%.

• Low Offset Current Sense Amplifier

• Programmable Oscillator Frequency Practical

to 700kHz

• Foldback Current Limiting

• Overvoltage and Undervoltage Fault Windows

• 2Ω Totem Pole Outputs with Programmable

Dead Times to Eliminate Cross-Conduction

• Chip Disable Function

(continued)

BLOCK DIAGRAM

UDG-97047-1

03/99

12 3 4 5 6 7...14

中文翻译

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与UCC2882-1Q相关器件

型号	品牌	获取价格	描述	数据表
UCC2882DW	ETC	获取价格	Current-Mode SMPS Controller
UCC2882DW-1	ETC	获取价格	Current-Mode SMPS Controller
UCC2882DWP	TI	获取价格	1.5A SWITCHING CONTROLLER, 700kHz SWITCHING FREQ-MAX, PDSO28
UCC2882DWTR	ETC	获取价格	Current-Mode SMPS Controller
UCC2882DWTR-1	ETC	获取价格	Current-Mode SMPS Controller
UCC2882N	ETC	获取价格	Current-Mode SMPS Controller
UCC2882N-1	ETC	获取价格	Current-Mode SMPS Controller
UCC2882PW	ETC	获取价格	Current-Mode SMPS Controller
UCC2882PW-1	ETC	获取价格	Current-Mode SMPS Controller
UCC2882PWTR	ETC	获取价格	Current-Mode SMPS Controller

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