主页 电源管理 交流/直流和直流/直流控制器（外部 FET）
主页
电源管理
交流/直流和直流/直流控制器（外部 FET）

UCC2808A-1EP

正在供货

增强型米6体育平台手机版_好二三四，低功率电流模式推挽式 PWM

立即订购
数据表

UCC2808A-1EP

正在供货
数据表 立即订购

米6体育平台手机版_好二三四详情

Vin (max) (V) 14 Operating temperature range (°C) -40 to 125 Control mode Current Topology Push pull Rating HiRel Enhanced Product Features Error amplifier Duty cycle (max) (%) 50
Vin (max) (V) 14 Operating temperature range (°C) -40 to 125 Control mode Current Topology Push pull Rating HiRel Enhanced Product Features Error amplifier Duty cycle (max) (%) 50
SOIC (D) 8 29.4 mm² 4.9 x 6
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of –40°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree†
  • Dual Output Drive Stages in Push-Pull Configuration
  • Current Sense Discharge Transistor to Improve Dynamic Response
  • 130-µA Typical Starting Current
  • 1-mA Typical Run Current
  • Operation to 1 MHz
  • Internal Soft Start
  • On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
  • On Chip VDD Clamping
  • Output Drive Stages Capable of 500-mA Peak-Source Current,
    1-A Peak-Sink Current

† Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.
  • Controlled Baseline
    • One Assembly/Test Site, One Fabrication Site
  • Extended Temperature Performance of –40°C to 125°C
  • Enhanced Diminishing Manufacturing Sources (DMS) Support
  • Enhanced Product-Change Notification
  • Qualification Pedigree†
  • Dual Output Drive Stages in Push-Pull Configuration
  • Current Sense Discharge Transistor to Improve Dynamic Response
  • 130-µA Typical Starting Current
  • 1-mA Typical Run Current
  • Operation to 1 MHz
  • Internal Soft Start
  • On-Chip Error Amplifier With 2-MHz Gain Bandwidth Product
  • On Chip VDD Clamping
  • Output Drive Stages Capable of 500-mA Peak-Source Current,
    1-A Peak-Sink Current

† Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.

The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

The UCC2808A family offers a variety of package options and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the ordering information table.

The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps minimize filter capacitor values and current sense delay.

The UCC2808A is a family of BiCMOS push-pull, high-speed, low-power, pulse-width modulators. The UCC2808A contains all of the control and drive circuitry required for off-line or dc-to-dc fixed frequency current-mode switching power supplies with minimal external parts count.

The UCC2808A dual output drive stages are arranged in a push-pull configuration. Both outputs switch at half the oscillator frequency using a toggle flip-flop. The dead time between the two outputs is typically 60 ns to 200 ns depending on the values of the timing capacitor and resistors, thus limiting each output stage duty cycle to less than 50%.

The UCC2808A family offers a variety of package options and choice of undervoltage lockout levels. The family has UVLO thresholds and hysteresis options for off-line and battery powered systems. Thresholds are shown in the ordering information table.

The UCC2808A is an enhanced version of the UCC2808 family. The significant difference is that the A versions feature an internal discharge transistor from the CS pin to ground, which is activated each clock cycle during the oscillator dead time. The feature discharges any filter capacitance on the CS pin during each cycle and helps minimize filter capacitor values and current sense delay.
filter 查找其他 交流/直流和直流/直流控制器（外部 FET）
下载 观看带字幕的视频 视频

技术文档

star =有关此米6体育平台手机版_好二三四的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 3
类型 标题 下载最新的英语版本 日期
* 数据表 UCC2808A-1EP: Low Power Current Mode Push-Pull PWM 数据表 (Rev. B) 2013年 4月 20日
* VID UCC2808A-1EP VID V6204642 2016年 6月 21日
* VID UCC2808A-1EP VID V6204642 2016年 6月 21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）。

封装 引脚 CAD 符号、封装和 3D 模型
SOIC (D) 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

视频