UC1846-SP_TI 耐辐射 QMLV、40V 输入、0.5A 双路输出 500kHz PWM 控制器

UC1846-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、40V 输入、0.5A 双路输出 500kHz PWM 控制器
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UC1846-SP的产品详情：

The UC1846-SP control devices provide all of the necessary features to implement fixed frequency, current mode control schemes while maintaining a minimum external parts count. The superior performance of this technique can be measured in improved line regulation, enhanced load response characteristics, and a simpler, easier-to-design control loop. Topological advantages include inherent pulse-by-pulse current limiting capability, automatic symmetry correction for push-pull converters, and the ability to parallel power modules while maintaining equal current sharing.

Protection circuitry includes built-in UVLO and programmable current limit in addition to soft-start capability. A shutdown function is also available which can initiate either a complete shutdown with automatic restart or latch the supply off.

Other features include fully latched operation, double-pulse suppression, deadline adjust capability, a ±1% trimmed bandgap reference, and low outputs in the OFF state.

UC1846-SP的优势和特性：

QML-V Qualified, SMD 5962-86806
5962P8680603VxA:
- 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
Automatic Feed-Forward Compensation
Programmable Pulse-by-Pulse Current Limiting
Automatic Symmetry Correction in Push-Pull Configuration
Enhanced Load Response Characteristics
Parallel-Operation Capability for Modular Power Systems
Differential Current-Sense Amplifier With Wide Common-Mode Range
Double-Pulse Suppression
500-mA (Peak) Totem-Pole Outputs
±1% Bandgap Reference
Undervoltage Lockout (UVLO)
Soft-Start Capability
Shutdown Terminal
500-kHz Operation

UC1846-SP的参数（英文）：

Topology
Boost, Flyback, Forward, Full-Bridge, Half-Bridge, Push-Pull
Duty cycle (Max) (%)
50
Supply voltage (Max) (V)
40
UVLO thresholds on/off (V)
7.7/6.95
Features
Error Amplifier, Multi-topology, Soft Start, Synchronization Pin
Operating temperature range (C)
-55 to 125
Rating
Space
Frequency (Max) (kHz)
500
Gate drive (Typ) (A)
0.5

UC1846-SP具体的完整产品型号参数及价格（美元）：

UC1846-SP的完整型号有：5962-8680601V2A、5962-8680601VEA、5962-8680603V2A、5962-8680603V9A、5962-8680603VEA、5962-8680603VFA、5962P8680603VEA、5962P8680603VFA，以下是这些产品的关键参数及官网采购报价：

5962-8680601V2A，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5962-8680601V2A的批量USD价格：288.399（1000+）

5962-8680601VEA，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5962-8680601VEA的批量USD价格：288.399（1000+）

5962-8680603V2A，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5962-8680603V2A的批量USD价格：331.659（1000+）

5962-8680603V9A，工作温度：-55 to 125，封装： (KGD)-0，包装数量MPQ：100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5962-8680603V9A的批量USD价格：331.659（1000+）

5962-8680603VEA，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5962-8680603VEA的批量USD价格：331.659（1000+）

5962-8680603VFA，工作温度：-55 to 125，封装：CFP (W)-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5962-8680603VFA的批量USD价格：331.659（1000+）

5962P8680603VEA，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5962P8680603VEA的批量USD价格：389.339（1000+）

5962P8680603VFA，工作温度：-55 to 125，封装：CFP (W)-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5962P8680603VFA的批量USD价格：389.339（1000+）

UC1846-SP的评估套件：

UC1846-SP的电路图解：

UC1846-SP的评估套件：