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UC1845AAY 数据表 (PDF) - Microsemi Corporation

UC1845AAY Datasheet PDF - Microsemi Corporation
部件名 UC1845AAY
下载  UC1845AAY 下载

文件大小   227.95 Kbytes
  8 Pages
制造商  MICROSEMI [Microsemi Corporation]
网页  http://www.microsemi.com
标志 MICROSEMI - Microsemi Corporation
功能描述 CURRENT MODE PWM CONTROLLER

UC1845AAY Datasheet (PDF)

Go To PDF Page 下载 数据表
UC1845AAY Datasheet PDF - Microsemi Corporation

部件名 UC1845AAY
下载  UC1845AAY Click to download

文件大小   227.95 Kbytes
  8 Pages
制造商  MICROSEMI [Microsemi Corporation]
网页  http://www.microsemi.com
标志 MICROSEMI - Microsemi Corporation
功能描述 CURRENT MODE PWM CONTROLLER

UC1845AAY 数据表 (HTML) - Microsemi Corporation

UC1845AAY Datasheet HTML 1Page - Microsemi Corporation UC1845AAY Datasheet HTML 2Page - Microsemi Corporation UC1845AAY Datasheet HTML 3Page - Microsemi Corporation UC1845AAY Datasheet HTML 4Page - Microsemi Corporation UC1845AAY Datasheet HTML 5Page - Microsemi Corporation UC1845AAY Datasheet HTML 6Page - Microsemi Corporation UC1845AAY Datasheet HTML 7Page - Microsemi Corporation UC1845AAY Datasheet HTML 8Page - Microsemi Corporation

UC1845AAY 产品详情

DESCRIPTION
The UC184xA family of control ICs provides all the necessary features to implement off-line fixed-frequency, current-mode switching power supplies with a minimum of external components. The current mode architecture demonstrates improved load regulation, pulse-by-pulse current limiting and inherent protection of the power supply output switch. The IC includes: A bandgap reference trimmed to ±1% accuracy, an error amplifier, a current sense comparator with internal clamp to 1V, a high current totem pole output stage for fast switching of power MOSFETs, and an externally programmable oscillator to set frequency and maximum duty cycle. The undervoltage lock-out is designed to operate with 250µA typ. start-up current, allowing an efficient bootstrap supply voltage design.

KEY FEATURES
■ LOW START-UP CURRENT. (0.5mA max.)
■ TRIMMED OSCILLATOR DISCHARGE CURRENT. (See Product Highlight)
■ OPTIMIZED FOR OFF-LINE AND DC-TO-DC CONVERTERS.
■ AUTOMATIC FEED FORWARD COMPENSATION.
■ PULSE-BY-PULSE CURRENT LIMITING.
■ ENHANCED LOAD RESPONSE CHARACTERISTICS.
■ UNDER-VOLTAGE LOCKOUT WITH HYSTERESIS.
■ DOUBLE PULSE SUPPRESSION.
■ HIGH-CURRENT TOTEM POLE OUTPUT.
■ INTERNALLY TRIMMED BANDGAP REFERENCE.
■ 500KHz OPERATION.
■ LOW RO ERROR AMPLIFIER.

APPLICATIONS
■ ECONOMICAL OFF-LINE FLYBACK OR FORWARD CONVERTERS.
■ DC-DC BUCK OR BOOST CONVERTERS.
■ LOW COST DC MOTOR CONTROL.




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关于 Microsemi Corporation


Microsemi Corporation是一家美国公司,专门从事半导体和系统解决方案的设计和制造。
该公司成立于1960年,总部位于加利福尼亚州的Aliso Viejo。
Microsemi提供了广泛的产品,包括模拟和混合信号集成电路,现场可编程栅极阵列(FPGA),电源管理和控制产品以及其他半导体溶液。
该公司的产品用于国防和安全,航空和航空,工业和通信等各种应用。
Microsemi以其半导体技术方面的专业知识以及向客户提供高质量可靠产品的能力。
2018年,Microsemi由Microchip Technology收购,Microchip Technology是微控制器,混合信号,模拟和安全产品的领先提供商。
Microsemi品牌不再使用,但其技术和产品仍然是Microchip投资组合的一部分。

*此信息仅供一般参考,对于因上述信息造成的任何损失或损害,我们概不负责。




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