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UCD8220

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数字辅助推挽式 PWM 控制器

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UCD8220

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产品详情

Vin (max) (V) 15.5 Operating temperature range (°C) -40 to 105 Control mode Peak current mode, Voltage Topology Full bridge, Half bridge, Push pull Rating Catalog Duty cycle (max) (%) 100
Vin (max) (V) 15.5 Operating temperature range (°C) -40 to 105 Control mode Peak current mode, Voltage Topology Full bridge, Half bridge, Push pull Rating Catalog Duty cycle (max) (%) 100
HTSSOP (PWP) 16 32 mm² 5 x 6.4
  • For digitally managed power supplies using µCs or the TMS320 ™ DSP family
  • Voltage or peak current mode control with cycle-by-cycle current limiting
  • Clock input from digital controller to set operating frequency and max duty cycle
  • Analog PWM comparator
  • 2-MHz switching frequency
  • 110-V input startup circuit and thermal shutdown (UCD8620)
  • Internal programmable slope compensation
  • 3.3-V, 10-mA linear regulator
  • DSP/µC compatible inputs
  • Dual ±4-A TrueDrive™ integrated circuit high current drivers
  • 10-ns typical rise and fall times with 2.2-nF
  • 25-ns input-to-output propagation delay
  • 25-ns current sense-to-output propagation delay
  • Programmable current-limit threshold
  • Digital output current-limit flag
  • 4.5-V to 15.5-V supply voltage range
  • Rated from –40°C to 105°C
  • For digitally managed power supplies using µCs or the TMS320 ™ DSP family
  • Voltage or peak current mode control with cycle-by-cycle current limiting
  • Clock input from digital controller to set operating frequency and max duty cycle
  • Analog PWM comparator
  • 2-MHz switching frequency
  • 110-V input startup circuit and thermal shutdown (UCD8620)
  • Internal programmable slope compensation
  • 3.3-V, 10-mA linear regulator
  • DSP/µC compatible inputs
  • Dual ±4-A TrueDrive™ integrated circuit high current drivers
  • 10-ns typical rise and fall times with 2.2-nF
  • 25-ns input-to-output propagation delay
  • 25-ns current sense-to-output propagation delay
  • Programmable current-limit threshold
  • Digital output current-limit flag
  • 4.5-V to 15.5-V supply voltage range
  • Rated from –40°C to 105°C

The UCD8220 analog pulse-width modulator (PWM) device is used in digitally managed power supplies using a microcontroller or the TMS320 DSP family.

The UCD8220 device is a double-ended PWM controller configured with push-pull drive logic.

Systems using the UCD8220 device close the PWM feedback loop with traditional analog methods, but the UCD8220 controller includes circuitry to interpret a time-domain digital pulse train. The pulse train contains the operating frequency and maximum duty cycle limit which are used to control the power supply operation. The device circuitry eases implementation of a converter with high level control features without the added complexity or possible PWM resolution limitations of closing the control loop in the discrete time domain.

The UCD8220 device can be configured for either peak current mode or voltage mode control. The device provides a programmable current-limit function and a digital output current-limit flag which can be monitored by the host controller to set the current limit operation. For fast switching speeds, the output stage uses the TrueDrive output circuit architecture, which delivers rated current of ±4-A into the gate of a MOSFET. Finally the device also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller or act as a reference in the system.

The UCD8220 controller is compatible with the standard 3.3-V I/O ports of UCD9K digital power controllers, DSPs, microcontrollers, or ASICs and is offered in the PowerPAD™ integrated circuit package HTSSOP.

The UCD8220 analog pulse-width modulator (PWM) device is used in digitally managed power supplies using a microcontroller or the TMS320 DSP family.

The UCD8220 device is a double-ended PWM controller configured with push-pull drive logic.

Systems using the UCD8220 device close the PWM feedback loop with traditional analog methods, but the UCD8220 controller includes circuitry to interpret a time-domain digital pulse train. The pulse train contains the operating frequency and maximum duty cycle limit which are used to control the power supply operation. The device circuitry eases implementation of a converter with high level control features without the added complexity or possible PWM resolution limitations of closing the control loop in the discrete time domain.

The UCD8220 device can be configured for either peak current mode or voltage mode control. The device provides a programmable current-limit function and a digital output current-limit flag which can be monitored by the host controller to set the current limit operation. For fast switching speeds, the output stage uses the TrueDrive output circuit architecture, which delivers rated current of ±4-A into the gate of a MOSFET. Finally the device also includes a 3.3-V, 10-mA linear regulator to provide power to the digital controller or act as a reference in the system.

The UCD8220 controller is compatible with the standard 3.3-V I/O ports of UCD9K digital power controllers, DSPs, microcontrollers, or ASICs and is offered in the PowerPAD™ integrated circuit package HTSSOP.
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类型 标题 下载最新的英语版本 日期
* 数据表 UCD8220 Digitally Managed Push-Pull Analog PWM Controllers 数据表 (Rev. E) PDF | HTML 2020年 1月 29日
用户指南 200-VA HF Inverter Design Based on UCD8220 and MSP430G2330 for Automotive Applications 2013年 3月 7日
更多文献资料 Исходные проекты ll 2011年 5月 13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）。

参考设计

TIDA-00122 — 汽车类 200 VA 高频逆变器设计

此设计提供基于 TI MSP430 和 UCD8220 数字管理推挽控制器的低成本小尺寸稳定型 200-VA 直流转交流逆变器。此设计面向汽车逆变器和用于商业用途的小型逆变器。在此设计中，升压级采用 UCD8220 从 12-V 电池获取 250-V 直流。MSP430 充当主机控制器，并为 UCD8220 和输出直流/交流电桥的驱动器提供 100-kHz 时钟。此逆变器的峰值效率为 90%，具有自然散热功能，无需散热风扇。
用户指南: PDF
原理图: PDF
封装 引脚 下载
HTSSOP (PWP) 16 查看选项
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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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