主页 电源管理 AC/DC & DC/DC controllers (external FET)
主页
电源管理
AC/DC & DC/DC controllers (external FET)

UC2856-Q1

正在供货

汽车类 8V 至 40V、高达 1MHz 电流模式 PWM 控制器

立即订购
数据表

UC2856-Q1

正在供货
数据表 立即订购

产品详情

Vin (max) (V) 40 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Automotive Duty cycle (max) (%) 50
Vin (max) (V) 40 Operating temperature range (°C) -40 to 125 Control mode Current Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Rating Automotive Duty cycle (max) (%) 50
SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Qualified for Automotive Applications
  • Pin-for-Pin Compatible With the UC2846
  • 65-ns Typical Delay From Shutdown to Outputs and
    50-ns Typical Delay From Sync to Outputs
  • Improved Current Sense Amplifier With Reduced Noise Sensitivity
  • Differential Current Sense With 3-V Common-Mode Range
  • Trimmed Oscillator Discharge Current for Accurate Deadband Control
  • Accurate 1-V Shutdown Threshold
  • High Current Dual Totem Pole Outputs (1.5-A Peak)
  • TTL Compatible Oscillator SYNC Pin Thresholds
  • ESD Protection
    • 4-kV Human-Body Model (HBM)
    • 500-V Charged-Device Model (CDM)
  • Qualified for Automotive Applications
  • Pin-for-Pin Compatible With the UC2846
  • 65-ns Typical Delay From Shutdown to Outputs and
    50-ns Typical Delay From Sync to Outputs
  • Improved Current Sense Amplifier With Reduced Noise Sensitivity
  • Differential Current Sense With 3-V Common-Mode Range
  • Trimmed Oscillator Discharge Current for Accurate Deadband Control
  • Accurate 1-V Shutdown Threshold
  • High Current Dual Totem Pole Outputs (1.5-A Peak)
  • TTL Compatible Oscillator SYNC Pin Thresholds
  • ESD Protection
    • 4-kV Human-Body Model (HBM)
    • 500-V Charged-Device Model (CDM)

The UC2856 is a high performance version of the popular UC2846 series of current mode controllers, and is intended for both design upgrades and new applications where speed and accuracy are important. All input to output delays have been minimized, and the current sense output is slew rate limited to reduce noise sensitivity. Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.

A low impedance TTL compatible sync output has been implemented with a 3-state function when used as a sync input.

Internal chip grounding has been improved to minimize internal noise caused when driving large capacitive loads. This, in conjunction with the improved differential current-sense amplifier, results in enhanced noise immunity.

Other features include a trimmed oscillator current (8%) for accurate frequency and dead-time control, a 1-V 5% shutdown threshold, and 4-kV minimum ESD protection (HBM) on all pins.

The UC2856 is a high performance version of the popular UC2846 series of current mode controllers, and is intended for both design upgrades and new applications where speed and accuracy are important. All input to output delays have been minimized, and the current sense output is slew rate limited to reduce noise sensitivity. Fast 1.5-A peak output stages have been added to allow rapid switching of power FETs.

A low impedance TTL compatible sync output has been implemented with a 3-state function when used as a sync input.

Internal chip grounding has been improved to minimize internal noise caused when driving large capacitive loads. This, in conjunction with the improved differential current-sense amplifier, results in enhanced noise immunity.

Other features include a trimmed oscillator current (8%) for accurate frequency and dead-time control, a 1-V 5% shutdown threshold, and 4-kV minimum ESD protection (HBM) on all pins.
open-in-new 查找其他 AC/DC & DC/DC controllers (external FET)
下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相似
UCC2808A-2 正在供货 具有放电晶体管、4.3/4.1V UVLO、温度范围为 -40°C 至 85°C 的低功耗电流模式推挽式 PWM Upgraded to BiCMOS

技术文档

star =有关此产品的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 2
类型 标题 下载最新的英语版本 日期
* 数据表 Improved Current-Mode PWM Controller 数据表 (Rev. B) 2011年 5月 26日
技术文章 Hybrid electric vehicles and electric vehicles need different isolated DC/DCs to w PDF | HTML 2017年 12月 27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 下载
SOIC (DW) 16 查看选项
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