UC1825A-SP_TI 耐辐射 QMLV、30V 输入、2A 双路输出 1MHz PWM 控制器

UC1825A-SP的基本参数

制造厂商：TI
产品类别：电源管理
技术类目：交流/直流和隔离式直流/直流开关稳压器 - PWM 控制器
功能描述：耐辐射 QMLV、30V 输入、2A 双路输出 1MHz PWM 控制器
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UC1825A-SP的产品详情：

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.

UC1825A-SP的优势和特性：

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)

UC1825A-SP的参数（英文）：

Topology
Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty cycle (Max) (%)
50
Supply voltage (Max) (V)
30
UVLO thresholds on/off (V)
9.2/8.4
Features
Error Amplifier, Leading Edge Blanking, Multi-topology, Soft Start, Synchronization Pin
Operating temperature range (C)
-55 to 125
Rating
Space
Frequency (Max) (kHz)
1000
Gate drive (Typ) (A)
2

UC1825A-SP具体的完整产品型号参数及价格（美元）：

UC1825A-SP的完整型号有：5962-8768102V2A、5962-8768102VEA、5962-8768105VEA、5962P8768105VEA、5962P8768105VYC，以下是这些产品的关键参数及官网采购报价：

5962-8768102V2A，工作温度：-55 to 125，封装：LCCC (FK)-20，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8768102V2A的批量USD价格：443.909（1000+）

5962-8768102VEA，工作温度：-55 to 125，封装：CDIP (J)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8768102VEA的批量USD价格：443.909（1000+）

5962-8768105VEA，工作温度：-55 to 125，封装：CDIP (J)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-8768105VEA的批量USD价格：443.909（1000+）

5962P8768105VEA，工作温度：-55 to 125，封装：CDIP (J)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962P8768105VEA的批量USD价格：532.69（1000+）

5962P8768105VYC，工作温度：-55 to 125，封装：CFP (HKT)-16，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：Call TI，TI官网5962P8768105VYC的批量USD价格：532.69（1000+）

UC1825A-SP的评估套件：

UC1825A-SP的电路图解：

UC1825A-SP的评估套件：