UC1852J

更新时间： 2024-11-23 12:27:27

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
页数	文件大小	规格书
10页	405K
描述
High Power-Factor Preregulator

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中文翻译

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技术参数
数据手册

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UC1852J 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP, DIP8,.3	针数：	8
Reach Compliance Code：	not_compliant	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.3
Is Samacsys：	N	模拟集成电路 - 其他类型：	POWER FACTOR CONTROLLER
控制模式：	CURRENT-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	30 V	最小输入电压：	12.5 V
标称输入电压：	24 V	JESD-30 代码：	R-CDIP-T8
功能数量：	1	端子数量：	8
最高工作温度：	125 °C	最低工作温度：	-55 °C
最大输出电流：	1 A	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	DIP	封装等效代码：	DIP8,.3
封装形状：	RECTANGULAR	封装形式：	IN-LINE
峰值回流温度（摄氏度）：	NOT SPECIFIED	认证状态：	Not Qualified
座面最大高度：	5.08 mm	子类别：	Switching Regulator or Controllers
表面贴装：	NO	切换器配置：	SINGLE
最大切换频率：	200 kHz	技术：	BIPOLAR
温度等级：	MILITARY	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
处于峰值回流温度下的最长时间：	NOT SPECIFIED	宽度：	7.62 mm
Base Number Matches：	1

UC1852J 数据手册

UC1852

UC2852

UC3852

High Power-Factor Preregulator

FEATURES

DESCRIPTION

The UC1852 provides a low-cost solution to active power-factor correction (PFC)

for systems that would otherwise draw high peak current pulses from AC power

lines. This circuit implements zero-current switched boost conversion, producing

sinusoidal input currents with a minimum of external components, while keeping

peak current substantially below that of fully-discontinuous converters.

•

Low-Cost Power Factor

Correction

•

Power Factor Greater Than 0.99

Few External Parts Required

Controlled On-Time Boost PWM

Zero-Current Switching

The UC1852 provides controlled switch on-time to regulate the output bulk DC

voltage, an off-time defined by the boost inductor, and a zero-current sensing

circuit to reactivate the switch cycle. Even though switching frequency varies with

both load and instantaneous line voltage, it can be maintained within a reasonable

range to minimize noise generation.

Limited Peak Current

Min and Max Frequency Limits

Starting Current Less Than 1mA

High-Current FET Drive Output

Under-Voltage Lockout

While allowing higher peak switch currents than continuous PFCs such as the

UC1854, this device offers less external circuitry and smaller inductors, yet better

performance and easier line-noise filtering than discontinuous current PFCs with

no sacrifice in complexity or cost. The ability to obtain a power factor in excess of

0.99 makes the UC1852 an optimum choice for low-cost applications in the 50 to

500 watt power range. Protection features of these devices include under-voltage

lockout, output clamping, peak-current limiting, and maximum-frequency

clamping.

The UC1852 family is available in 8-pin plastic and ceramic dual in-line packages,

and in the 8-pin small outline IC package (SOIC). The UC1852 is specified for

operation from -55°C to +125°C, the UC2852 is specified for operation from -40°C

to +85°C, and the UC3852 is specified for operation from 0°C to +70°C.

TYPICAL APPLICATION

UDG-92001

10/94

12 3 4 5 6 7...10

中文翻译

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与UC1852J相关器件

型号	品牌	获取价格	描述	数据表
UC1852J883B	TI	获取价格	High Power-Factor Preregulator
UC1852N	ETC	获取价格	Power Factor Controller
UC1853	TI	获取价格	High Power Factor Preregulator
UC1853_08	TI	获取价格	High Power Factor Preregulator
UC1853D	ETC	获取价格	Power Factor Controller
UC1853DTR	TI	获取价格	IC,POWER FACTOR CONTROLLER,BIPOLAR,SOP,8PIN
UC1853J	ETC	获取价格	Power Factor Controller
UC1853N	ETC	获取价格	Power Factor Controller
UC1854	TI	获取价格	High Power Factor Preregulator
UC1854_08	TI	获取价格	High Power Factor Preregulator

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