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UCC2810

正在供货

温度范围为 -40°C 至 85°C 的双通道同步电流模式 PWM

产品详情

Topology Boost, Flyback, Forward Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Adjustable switching frequency, Error amplifier, Leading edge blanking, Multi-topology, Programmable max duty dycle, Soft start, Synchronization pin UVLO thresholds on/off (V) 11.3/8.3 Operating temperature range (°C) -40 to 85 Rating Catalog Gate drive (typ) (A) 1 Vin (max) (V) 11
Topology Boost, Flyback, Forward Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Adjustable switching frequency, Error amplifier, Leading edge blanking, Multi-topology, Programmable max duty dycle, Soft start, Synchronization pin UVLO thresholds on/off (V) 11.3/8.3 Operating temperature range (°C) -40 to 85 Rating Catalog Gate drive (typ) (A) 1 Vin (max) (V) 11
PDIP (N) 16 181.42 mm² 19.3 x 9.4 SOIC (DW) 16 106.09 mm² 10.3 x 10.3
  • Single Oscillator Synchronizes Two PWMs
  • 150-µA Startup Supply Current
  • 2-mA Operating Supply Current
  • Operation to 1 MHz
  • Internal Soft-Start
  • Full-Cycle Fault Restart
  • Internal Leading-Edge Blanking of the Current Sense Signal
  • 1-A Totem Pole Outputs
  • 75-ns Typical Response from Current Sense to Output
  • 1.5% Tolerance Voltage Reference

  • Single Oscillator Synchronizes Two PWMs
  • 150-µA Startup Supply Current
  • 2-mA Operating Supply Current
  • Operation to 1 MHz
  • Internal Soft-Start
  • Full-Cycle Fault Restart
  • Internal Leading-Edge Blanking of the Current Sense Signal
  • 1-A Totem Pole Outputs
  • 75-ns Typical Response from Current Sense to Output
  • 1.5% Tolerance Voltage Reference

The UCC3810 is a high-speed BiCMOS controller integrating two synchronized pulse width modulators for use in off-line and dc-to-dc power supplies. The UCC3810 family provides perfect synchronization between two PWMs by usin g the same oscillator. The oscillator’s sawtooth waveform can be used for slope compensation if required.

Using a toggle flip-flop to alternate between modulators, the UCC3810 ensures that one PWM does not slave, interfere, or otherwise affect the other PWM. This toggle flip- flop also ensures that each PWM is limited to 50% maximum duty cycle, insuring adequate off-time to reset magnetic elements. This device contains many of the same elements of the UC3842 current mode controller family, combined with the enhancements of the UCC3802. This minimizes power supply parts count. Enhancements include leading edge blanking of the current sense signals, full cycle fault restart, CMOS output drivers, and outputs which remain low even when the supply voltage is removed.

The UCC3810 is a high-speed BiCMOS controller integrating two synchronized pulse width modulators for use in off-line and dc-to-dc power supplies. The UCC3810 family provides perfect synchronization between two PWMs by usin g the same oscillator. The oscillator’s sawtooth waveform can be used for slope compensation if required.

Using a toggle flip-flop to alternate between modulators, the UCC3810 ensures that one PWM does not slave, interfere, or otherwise affect the other PWM. This toggle flip- flop also ensures that each PWM is limited to 50% maximum duty cycle, insuring adequate off-time to reset magnetic elements. This device contains many of the same elements of the UC3842 current mode controller family, combined with the enhancements of the UCC3802. This minimizes power supply parts count. Enhancements include leading edge blanking of the current sense signals, full cycle fault restart, CMOS output drivers, and outputs which remain low even when the supply voltage is removed.

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类型 标题 下载最新的英语版本 日期
* 数据表 Dual Channel Synchronized Current Mode PWM 数据表 (Rev. D) 2004年 11月 2日

设计和开发

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封装 引脚 下载
PDIP (N) 16 查看选项
SOIC (DW) 16 查看选项

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

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