UC2843A
- Optimized for Off-Line and DC-DC Converters
- Low Start-Up Current (< 0.5 mA)
- Trimmed Oscillator Discharge Current
- Automatic Feedforward Compensation
- Pulse-by-Pulse Current Limiting
- Enhanced Load Response Characteristics
- Undervoltage Lockout With Hysteresis
- Double Pulse Suppression
- High-Current Totem Pole Output
- Internally-Trimmed Bandgap Reference
- Up to 500-kHz Operation
- Create a Custom Design Using the UCx84xA With the WEBENCH Power Designer
The UCx84xA family of control devices is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
技术文档
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查看全部 11 类型 | 项目标题 | 下载最新的英语版本 | 日期 | |||
---|---|---|---|---|---|---|
* | 数据表 | UCx84xA Current-Mode PWM Controller 数据表 (Rev. G) | PDF | HTML | 12 Jul 2022 | ||
应用手册 | 使用 TI 运算放大器调节开关模式电源电流信号 (Rev. A) | PDF | HTML | 下载英文版本 (Rev.A) | PDF | HTML | 16 Jul 2021 | |
应用手册 | Understanding Buck-Boost (Inverting) Power Stages in Switch Mode Power Supplies (Rev. B) | 12 Mar 2019 | ||||
应用手册 | UCC38C42 系列高速 BiCMOS 电流模式 PWM 控制器 | 07 Feb 2002 | ||||
应用手册 | DN-26 UC3842A Low-Cost Start-up and Fault Protection Circuit | 05 Sep 1999 | ||||
应用手册 | DN-27 UC1842/UC1842A Family - Summary of Functional Differences | 05 Sep 1999 | ||||
应用手册 | DN-29 UC3842A Family - Frequency Foldback Technique Provides Protection | 05 Sep 1999 | ||||
应用手册 | DN-30 Programmable Electronic Circuit Breaker | 05 Sep 1999 | ||||
应用手册 | DN-40 The Effects of Oscillator Discharge Current Variations on Maximum Duty | 05 Sep 1999 | ||||
应用手册 | DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 | 05 Sep 1999 | ||||
应用手册 | U-111, Practical Considerations in Current Mode Power Supplies | 05 Sep 1999 |
设计和开发
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订购和质量
包含信息:
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 认证摘要
- 持续可靠性监测
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