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85515022A

更新时间： 2024-01-09 00:04:30

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脉冲
页数	文件大小	规格书
11页	594K
描述
Regulating Pulse Width Modulator

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技术参数
数据手册

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85515022A 技术参数

生命周期：	Obsolete	包装说明：	CERAMIC, LCC-20
Reach Compliance Code：	unknown	风险等级：	5.3
Is Samacsys：	N	模拟集成电路 - 其他类型：	SWITCHING CONTROLLER
控制模式：	VOLTAGE-MODE	控制技术：	PULSE WIDTH MODULATION
最大输入电压：	35 V	最小输入电压：	7 V
标称输入电压：	15 V	JESD-30 代码：	S-CQCC-N20
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：	0.1 A	封装主体材料：	CERAMIC, METAL-SEALED COFIRED
封装代码：	QCCN	封装等效代码：	LCC20,.35SQ
封装形状：	SQUARE	封装形式：	CHIP CARRIER
认证状态：	Not Qualified	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：	550 kHz	技术：	BIPOLAR
温度等级：	MILITARY	端子形式：	NO LEAD
端子节距：	1.27 mm	端子位置：	QUAD
Base Number Matches：	1

85515022A 数据手册

UC1526A

UC2526A

UC3526A

Regulating Pulse Width Modulator

FEATURES

DESCRIPTION

•

Reduced Supply Current

The UC1526A Series are improved-performance pulse-width modu-

lator circuits intended for direct replacement of equivalent non- “A”

versions in all applications. Higher frequency operation has been

enhanced by several significant improvements including: a more ac-

curate oscillator with less minimum dead time, reduced circuit de-

lays (particularly in current limiting), and an improved output stage

with negligible cross-conduction current. Additional improvements

include the incorporation of a precision, band-gap reference gener-

ator, reduced overall supply current, and the addition of thermal

shutdown protection.

Oscillator Frequency to 600kHz

Precision Band-Gap Reference

7 to 35V Operation

Dual 200mA Source/Sink Outputs

Minimum Output Cross-Conduction

Double-Pulse Suppression Logic

Under-Voltage Lockout

Along with these improvements, the UC1526A Series retains the

protective features of under-voltage lockout, soft-start, digital cur-

rent limiting, double pulse suppression logic, and adjustable

deadtime. For ease of interfacing, all digital control ports are TTL

compatible with active low logic.

Programmable Soft-Start

Thermal Shutdown

TTL/CMOS Compatible Logic Ports

5 Volt Operation (VIN = VC = VREF = 5.0V)

Five volt (5V) operation is possible for “logic level” applications by

connecting VIN, VC and VREF to a precision 5V input supply. Consult

factory for additional information.

BLOCK DIAGRAM

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