久芯网

UC28023N

  • 描述:输出类别: 晶体管驱动器 拓扑结构: Boost、Flyback、Forward Converter、Full Bridge、Half Bridge、Push Pull 输出配置: 阳性的 开关频率: 340千赫兹 ~ 460千赫兹 供应商设备包装: 16-PDIP
  • 品牌: 德州仪器 (Texas)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 20

  • 库存: 0
  • 单价: ¥12.74750
  • 数量:
    - +
  • 总计: ¥254.95
在线询价

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规格参数

  • 输出类别 晶体管驱动器
  • 输出配置 阳性的
  • 输出数量 one
  • 输出阶段 one
  • 同步整流装置 Yes
  • 功能 上一步,上一步/下一步
  • 串口 -
  • 时钟同步
  • 安装类别 通孔
  • 制造厂商 德州仪器 (Texas)
  • 部件状态 过时的
  • 包装/外壳 16-DIP(0.300英寸,7.62毫米)
  • 供应商设备包装 16-PDIP
  • 最大占空比 90%
  • 工作温度 -40摄氏度~105摄氏度(TA)
  • 拓扑结构 Boost、Flyback、Forward Converter、Full Bridge、Half Bridge、Push Pull
  • 开关频率 340千赫兹 ~ 460千赫兹
  • 控制功能特性 电流限制、启用、频率控制、斜坡、软启动
  • 电源电压 (Vcc/Vdd) 9V~30V

UC28023N 产品详情

The UC28023N and UC28025 are fixed-frequency PWM controllers optimized for high-frequency switched-mode power-supply applications. The UC28023N is a single output PWM for single-ended topologies while the UC28025 offers dual alternating outputs for double-ended and full bridge topologies.

Targeted for cost-effective solutions with minimal external components. UC2802x devices include an oscillator, a temperature compensated reference, a wide bandwidth error amplifier, a high-speed current-sense comparator, and high-current, active-high, totem-pole outputs to directly drive external MOSFETs.

Protection circuitry includes a current limit comparator with a 1-V threshold, a TTL compatible shutdown port, and a soft-start pin which doubles as a maximum duty-cycle clamp. The logic is fully latched to provide jitter-free operation and prohibit multiple pulses at an output. An undervoltage lockout section with 800 mV of hysteresis assures low start-up current. During undervoltage lockout, the outputs are high impedance. Propagation delays through the comparators and logic circuitry have been minimized while maximizing bandwidth and slew rate of the error amplifier.

Devices are available in the industrial temperature range of –40°C to 105°C. Package offerings are 16-pin SOIC (DW), or 16-pin PDIP (N) packages.

Feature

  • Peak Current Mode, Average Current Mode, or Voltage Mode (With FeedForward) Control Methods
  • Practical Operation Up to 1 MHz
  • 50-ns Propagation Delay to Output
  • ±1.5-A Peak Totem Pole Outputs
  • 9-V to 30-V Nominal Operational Voltage
  • Wide Bandwidth Error Amplifier
  • Fully Latched Logic With Double Pulse Suppression
  • Pulse-by-Pulse Current Limiting
  • Programmable Maximum Duty Cycle Control
  • Undervoltage Lockout With Hysteresis
  • Trimmed 5.1-V Reference With UVLO
  • Same Functionality as UC3823 and UC3825
UC28023N所属分类:DC - DC开关控制器,UC28023N 由 德州仪器 (Texas) 设计生产,可通过久芯网进行购买。UC28023N价格参考¥12.747504,你可以下载 UC28023N中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询UC28023N规格参数、现货库存、封装信息等信息!

德州仪器 (Texas)

德州仪器 (Texas)

德州仪器公司(TI)是一家开发模拟IC和嵌入式处理器的全球半导体设计和制造公司。通过雇用世界上最聪明的人,TI创造了塑造技术未来的创新。如今,TI正在帮助超过10万名客户改变未来。

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