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交流/直流和直流/直流控制器（外部 FET）

UCC2813-3

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具有 4.1V/3.6V UVLO、100% 占空比、温度范围为 –40°C 至 85°C 的经济型低功耗 BICMOS 1MHz 电流模式 PWM

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UCC2813-3

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产品详情

Vin (max) (V) 11 Operating temperature range (°C) -40 to 85 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
Vin (max) (V) 11 Operating temperature range (°C) -40 to 85 Control mode Current Topology Boost, Flyback, Forward Rating Catalog Features Adjustable switching frequency, Current limiting, Dead time control, Error amplifier, Fixed frequency, Leading edge blanking, Multi-topology, Soft start Duty cycle (max) (%) 100 TI functional safety category Functional Safety-Capable
SOIC (D) 8 29.4 mm² 4.9 x 6 TSSOP (PW) 8 19.2 mm² 3 x 6.4
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as the UCC3802 device, UC3842 device, and UC3842A device families
  • 100-µA typical starting supply current
  • 500-µA typical operating supply current
  • Operation to 1 MHz
  • Internal soft start
  • Internal fault soft start
  • Internal leading-edge blanking of the current-sense signal
  • 1-A totem-pole output
  • 70-ns typical response from current-sense to gate-drive output
  • 1.5% Tolerance Voltage Reference
  • Same Pinout as the UCC3802 device, UC3842 device, and UC3842A device families

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.

The UCC3813-x device family of high-speed, low-power integrated circuits contains all of the control and drive components required for off-line and DC-to-DC fixed-frequency current-mode switching power supplies with minimal parts count.

These devices have the same pin configuration as the UC384x device family, and also offer the added features of internal full-cycle soft start and internal leading-edge blanking of the current-sense input.

The UCC3813-x device family offers a variety of package options, temperature-range options, choice of maximum duty cycle, and choice of critical voltage levels. Devices with lower reference voltage such as the UCC3813-3 and UCC3813-5 fit best into battery operated systems, while the higher reference and the higher UVLO hysteresis of the UCC3813-2 device and UCC3813-4 device make these ideal choices for use in off-line power supplies.

The UCC2813-x device series is specified for operation from –40°C to 85°C and the UCC3813-x device series is specified for operation from 0°C to 70°C.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 UCCx813-x Low-Power Economy BiCMOS Current-Mode PWM 数据表 (Rev. F) PDF | HTML 2020年 5月 12日
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 英语版 (Rev.A) PDF | HTML 2021年 7月 16日
应用手册 Understanding Inverting Buck-Boost Power Stages in Switch Mode Power Supplies (Rev. B) 2019年 3月 12日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 DN-62 开关电源拓扑电压模式与 电流模式 英语版 2010年 7月 28日
应用手册 UCC38C42 系列高速 BiCMOS 电流模式 PWM 控制器 2002年 2月 7日
应用手册 Differences Between the UCC3813 and the UCC3800 PWM Families 2000年 6月 2日
应用手册 DN-42A Design Considerations for Transitioning from UC3842 to the New UCC3802 1999年 9月 5日
应用手册 U-111, Practical Considerations in Current Mode Power Supplies 1999年 9月 5日
应用手册 U-133A UCC3800/1/2/3/4/5 BiCMOS Current Mode Control IC's 1999年 9月 5日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

仿真模型

UCC3803 PSpice Transient Model (Rev. B)

SLUM053B.ZIP (91 KB) - PSpice Model
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仿真模型

UCC3803 TINA-TI Transient Spice Model

SLUM219.ZIP (28 KB) - TINA-TI Spice Model
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仿真模型

UCC3803 TINA-TI Transient Start-Up Reference Design (Rev. A)

SLUM051A.TSC (195 KB) - TINA-TI Reference Design
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仿真模型

UCC3803 TINA-TI Transient Steady-State Ref Design (Rev. A)

SLUM052A.TSC (152 KB) - TINA-TI Reference Design
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仿真模型

UCCx803 & UCCx813-3 Unencrypted PSpice Transient Model

SLUM511.ZIP (6 KB) - PSpice Model
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参考设计

PMP2187 — 适用于医疗包的反激式线性稳压器（5.75V、10mA）参考设计

此设计可提供隔离的 5V（两个）、3.3V、2.5V 及 -5V 输出。对于噪声敏感应用（如医学成像和数据采集），所有输出均可采用低压降 (LDO) 线性稳压器进行噪声过滤。
测试报告: PDF
原理图: PDF
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (D) 8 Ultra Librarian
TSSOP (PW) 8 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

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
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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