Datasheet > 电源电路 > 开关式稳压器或控制器> 5962-8992002VA

5962-8992002VA

更新时间： 2024-02-14 11:04:07

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
11页	942K
描述
Programmable, Off-Line, PWM Controller

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技术参数
数据手册

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5962-8992002VA 技术参数

生命周期：	Obsolete	零件包装代码：	DIP
包装说明：	DIP,	针数：	18
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.72
模拟集成电路 - 其他类型：	SWITCHING CONTROLLER	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	30 V	最小输入电压：	8 V
标称输入电压：	20 V	JESD-30 代码：	R-GDIP-T18
功能数量：	1	端子数量：	18
最高工作温度：	125 °C	最低工作温度：	-55 °C
最大输出电流：	0.4 A	封装主体材料：	CERAMIC, GLASS-SEALED
封装代码：	DIP	封装形状：	RECTANGULAR
封装形式：	IN-LINE	认证状态：	Not Qualified
筛选级别：	MIL-PRF-38535	表面贴装：	NO
切换器配置：	SINGLE	最大切换频率：	500 kHz
温度等级：	MILITARY	端子形式：	THROUGH-HOLE
端子位置：	DUAL	Base Number Matches：	1

5962-8992002VA 数据手册

UC1841

UC2841

UC3841

Programmable, Off-Line, PWM Controller

FEATURES

DESCRIPTION

•

All Control, Driving, Monitoring, and

Protection Functions Included

The UC1841 family of PWM controllers has been designed to increase

the level of versatility while retaining all of the performance features of

the earlier UC1840 devices. While still optimized for highly-efficient boot-

strapped primary-side operation in forward or flyback power converters,

the UC1841 is equally adept in implementing both low and high voltage

input DC to DC converters. Important performance features include a

low-current starting circuit, linear feed-forward for constant volt-second

operation, and compatibility with either voltage or current mode topologies.

•

Low-current, Off-line Start Circuit

Voltage Feed Forward or Current

Mode Control

•

Guaranteed Duty Cycle Clamp

PWM Latch for Single Pulse per Period

In addition to start-up and normal regulating PWM functions, these de-

vices include built in protection from over-voltage, under-voltage, and

over-current fault conditions with the option for either latch-off or automat-

ic restart.

Pulse-by-Pulse Current Limiting Plus

Shutdown for Over-Current Fault

•

No Start-up or Shutdown Transients

While pin compatible with the UC1840 in all respects except that the po-

larity of the External Stop has been reversed, the UC1841 offers the fol-

lowing improvements:

Slow Turn-on Both Initially and After

Fault Shutdown

•

Shutdown Upon Over- or

Under-Voltage Sensing

1. Fault latch reset is accomplished with slow start discharge rather

than recycling the input voltage to the chip.

Latch Off or Continuous Retry After

Fault

2. The External Stop input can be used for a fault delay to resist

shutdown from short duration transients.

PWM Output Switch Usable to 1A

Peak Current

3. The duty-cycle clamping function has been characterized and

specified.

•

1% Reference Accuracy

500kHz Operation

The UC1841 is characterized for -55°C to +125°C operation while the

UC2841 and UC3841 are designed for -25°C to +85°C and 0°to +70°C,

respectively.

18 Pin DIL Package

BLOCK DIAGRAM

Note: Positive true logic, latch outputs high with set, reset has priority.

6/93

12 3 4 5 6 7...11

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