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UC1825A-SP

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耐辐射 QMLV、30V 输入、2A 双路输出 1MHz PWM 控制器

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UC1825B-SP 正在供货 耐辐射 QMLV、30V 输入、2A 双输出 1MHz PWM 控制器 Improved TID performance (100 krad) with increased max frequency (1 MHz) and dual outputs for half/full-bridge, or push-pull topologies.

产品详情

Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Error amplifier, Leading edge blanking, Multi-topology, Soft start, Synchronization pin UVLO thresholds on/off (V) 9.2/8.4 Operating temperature range (°C) -55 to 125 Rating Space Gate drive (typ) (A) 2 Vin (max) (V) 30 Radiation, SEL (MeV·cm2/mg) Bipolar
Topology Boost, Flyback, Forward, Full bridge, Half bridge, Push pull Control mode Current Duty cycle (max) (%) 50 Switching frequency (max) (kHz) 1000 Features Error amplifier, Leading edge blanking, Multi-topology, Soft start, Synchronization pin UVLO thresholds on/off (V) 9.2/8.4 Operating temperature range (°C) -55 to 125 Rating Space Gate drive (typ) (A) 2 Vin (max) (V) 30 Radiation, SEL (MeV·cm2/mg) Bipolar
CDIP (J) 16 135.3552 mm² 19.56 x 6.92 CFP (HKT) 16 72.136 mm² 10.16 x 7.1 LCCC (FK) 20 79.0321 mm² 8.89 x 8.89
  • QML-V Qualified, SMD 5962-87681
  • 5962P8768105Vxx:
    • Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID)
    • Passes Functional and Specified Post-Radiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b
    • Exhibits Low Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019
  • Compatible With Voltage-Mode or Current-Mode Control Methods
  • Practical Operation at Switching Frequencies to 1 MHz
  • 50-ns Propagation Delay to Output
  • High-Current Dual Totem Pole Outputs (2-A Peak)
  • Trimmed Oscillator Discharge Current
  • Low 100-µA Start-Up Current
  • Pulse-by-Pulse Current Limiting Comparator
  • Latched Overcurrent Comparator With Full Cycle Restart
  • Qualified Over the Military Temperature Range (–55°C to 125°C)
  • QML-V Qualified, SMD 5962-87681
  • 5962P8768105Vxx:
    • Radiation Hardness Assurance (RHA) up to 30-krad(Si) Total Ionizing Dose (TID)
    • Passes Functional and Specified Post-Radiation Parametric Limits at 45 krad at LDR (10 mrad(Si)/s) per 1.5× Over Test as Defined in MIL-STD-883 Test Method 1019.9 Paragraph 3.13.3.b
    • Exhibits Low Dose Rate Sensitivity but Remains Within the Pre-Radiation Electrical Limits at 30-krad Total Dose Level, as Allowed by MIL-STD-883, TM1019
  • Compatible With Voltage-Mode or Current-Mode Control Methods
  • Practical Operation at Switching Frequencies to 1 MHz
  • 50-ns Propagation Delay to Output
  • High-Current Dual Totem Pole Outputs (2-A Peak)
  • Trimmed Oscillator Discharge Current
  • Low 100-µA Start-Up Current
  • Pulse-by-Pulse Current Limiting Comparator
  • Latched Overcurrent Comparator With Full Cycle Restart
  • Qualified Over the Military Temperature Range (–55°C to 125°C)

The UC1825A-SP PWM controller is a radiation hardened version of the standard UC1825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Start-up supply current, typically 100 µA, is ideal for offline applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the start-up current specification. In addition each output is capable of 2-A peak currents during transitions.

Functional improvements have also been implemented in this device family. The UC1825 shutdown comparator is now a high-speed overcurrent comparator with a threshold of 1.2 V. The overcurrent comparator sets a latch that ensures full discharge of the soft-start capacitor before allowing a restart. While the fault latch is set, the outputs are in the low state. In the event of continuous faults, the soft-start capacitor is fully charged before discharge to insure that the fault frequency does not exceed the designed soft start period. The UC1825 CLOCK pin has become CLK/LEB. This pin combines the functions of clock output and leading edge blanking adjustment and has been buffered for easier interfacing.

The UC1825A-SP has dual alternating outputs and the same pin configuration of the UC1825. The UC1825A-SP version parts have UVLO thresholds identical to the original UC1825.

The UC1825A-SP PWM controller is a radiation hardened version of the standard UC1825 family. Performance enhancements have been made to several of the circuit blocks. Error amplifier gain bandwidth product is 12 MHz, while input offset voltage is 2 mV. Current limit threshold is assured to a tolerance of 5%. Oscillator discharge current is specified at 10 mA for accurate dead time control. Frequency accuracy is improved to 6%. Start-up supply current, typically 100 µA, is ideal for offline applications. The output drivers are redesigned to actively sink current during UVLO at no expense to the start-up current specification. In addition each output is capable of 2-A peak currents during transitions.

Functional improvements have also been implemented in this device family. The UC1825 shutdown comparator is now a high-speed overcurrent comparator with a threshold of 1.2 V. The overcurrent comparator sets a latch that ensures full discharge of the soft-start capacitor before allowing a restart. While the fault latch is set, the outputs are in the low state. In the event of continuous faults, the soft-start capacitor is fully charged before discharge to insure that the fault frequency does not exceed the designed soft start period. The UC1825 CLOCK pin has become CLK/LEB. This pin combines the functions of clock output and leading edge blanking adjustment and has been buffered for easier interfacing.

The UC1825A-SP has dual alternating outputs and the same pin configuration of the UC1825. The UC1825A-SP version parts have UVLO thresholds identical to the original UC1825.

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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 UC1825A-SP Class-V, Radiation Hardened High-Speed PWM Controller 数据表 (Rev. C) PDF | HTML 2016年 12月 9日
* SMD UC1825A-SP SMD 5962-87681 2016年 7月 8日
* 辐射与可靠性报告 UC1825A-SP Radiation Test Report (5962-8768105VEA) 2015年 5月 8日
更多文献资料 TI Engineering Evaluation Units vs. MIL-PRF-38535 QML Class V Processing (Rev. A) 2023年 8月 31日
应用手册 QML flow, its importance, and obtaining lot information (Rev. C) 2023年 8月 30日
应用手册 单粒子效应置信区间计算 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2022年 12月 2日
应用手册 重离子轨道环境单粒子效应估算 (Rev. A) PDF | HTML 英语版 (Rev.A) PDF | HTML 2022年 11月 30日
电子书 电子产品辐射手册 (Rev. B) 2022年 5月 7日
选择指南 TI Space Products (Rev. I) 2022年 3月 3日
应用简报 Controlling Input Power for Present and Next-Generation Power Controllers PDF | HTML 2020年 12月 14日
应用手册 DLA Standard Microcircuit Drawings (SMD) and JAN Part Numbers Primer 2020年 8月 21日
应用手册 Hermetic Package Reflow Profiles, Termination Finishes, and Lead Trim and Form PDF | HTML 2020年 5月 18日
电子书 电子产品辐射手册 (Rev. A) 2019年 5月 21日
应用手册 UC1825A-SP TID Report 2016年 12月 12日

设计和开发

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封装 引脚 下载
CDIP (J) 16 查看选项
CFP (HKT) 16 查看选项
LCCC (FK) 20 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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