Datasheet > 电源电路 > 开关式稳压器或控制器> 5962-8670402PA

5962-8670402PA

更新时间： 2024-01-29 16:00:39

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
19页	934K
描述
Current Mode PWM Controller

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技术参数
数据手册

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5962-8670402PA 技术参数

生命周期：	Active	零件包装代码：	QLCC
包装说明：	QCCN,	针数：	20
Reach Compliance Code：	unknown	ECCN代码：	EAR99
HTS代码：	8542.39.00.01	风险等级：	5.77
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：	15.5 V	最小输入电压：	14.5 V
标称输入电压：	15 V	JESD-30 代码：	S-CQCC-N20
JESD-609代码：	e0	功能数量：	1
端子数量：	20	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：	QCCN
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	Qualified	筛选级别：	MIL-STD-883
表面贴装：	YES	切换器配置：	SINGLE
温度等级：	MILITARY	端子面层：	TIN LEAD
端子形式：	NO LEAD	端子位置：	QUAD
Base Number Matches：	1

5962-8670402PA 数据手册

UC1842/3/4/5

UC2842/3/4/5

UC3842/3/4/5

Current Mode PWM Controller

FEATURES

DESCRIPTION

•

Optimized For Off-line And DC

To DC Converters

The UC1842/3/4/5 family of control ICs provides the necessary features to

implement off-line or DC to DC fixed frequency current mode control schemes

with a minimal external parts count. Internally implemented circuits include

under-voltage lockout featuring start up current less than 1mA, a precision

reference trimmed for accuracy at the error amp input, logic to insure latched

operation, a PWM comparator which also provides current limit control, and a

totem pole output stage designed to source or sink high peak current. The

output stage, suitable for driving N Channel MOSFETs, is low in the off state.

•

Low Start Up Current (<1mA)

Automatic Feed Forward

Compensation

•

Pulse-by-pulse Current Limiting

Enhanced Load Response

Characteristics

Differences between members of this family are the under-voltage lockout

thresholds and maximum duty cycle ranges. The UC1842 and UC1844 have

UVLO thresholds of 16V (on) and 10V (off), ideally suited to off-line

applications. The corresponding thresholds for the UC1843 and UC1845 are

8.4V and 7.6V. The UC1842 and UC1843 can operate to duty cycles

approaching 100%. A range of zero to 50% is obtained by the UC1844 and

UC1845 by the addition of an internal toggle flip flop which blanks the output

off every other clock cycle.

•

Under-voltage Lockout With

Hysteresis

•

Double Pulse Suppression

High Current Totem Pole

Output

•

Internally Trimmed Bandgap

Reference

•

500khz Operation

Low RO Error Amp

BLOCK DIAGRAM

A/B

Note 1:

Note 2:

A = DIL-8 Pin Number. B = SO-14 and CFP-14 Pin Number.

Toggle flip flop used only in 1844 and 1845.

SLUS223A - APRIL 1997 - REVISED MAY 2002

12 3 4 5 6 7...19

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