UC1845A-EP_TI 增强型产品电流模式 Pwm 控制器

UC1845A-EP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：增强型产品电流模式 Pwm 控制器
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UC1845A-EP的产品详情：

The UC1842A/3A/4A/5A family of control ICs is a pin-for-pin compatible improved version of the UC3842/3/4/5 family. Providing the necessary features to control current mode switched mode power supplies, this family has the following improved features. Start up current is guaranteed to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During under voltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.

UC1845A-EP的优势和特性：

Controlled Baseline

One Assembly/Test Site, One Fabrication Site

Extended Temperature Performance of –55°C to 125°C
Enhanced Diminishing Manufacturing Sources (DMS) Support
Enhanced Product Change Notification
Qualification Pedigree(1)
Optimized for Off-line and DC-to-DC Converters
Low Start Up Current (<0.5 mA)
Trimmed Oscillator Discharge Current
Automatic Feed Forward Compensation
Pulse-by-Pulse Current Limiting
Enhanced Load Response Characteristics
Under-Voltage Lockout With Hysteresis
Double Pulse Suppression
High Current Totem Pole Output
Internally Trimmed Bandgap Reference
500 kHz Operation
Low RO Error Amp

(1) Component qualification in accordance with JEDEC and industry standards to ensure reliable operation over an extended temperature range. This includes, but is not limited to, Highly Accelerated Stress Test (HAST) or biased 85/85, temperature cycle, autoclave or unbiased HAST, electromigration, bond intermetallic life, and mold compound life. Such qualification testing should not be viewed as justifying use of this component beyond specified performance and environmental limits.

UC1845A-EP的参数（英文）：

Topology
Boost, Flyback, Forward
Duty cycle (Max) (%)
50
Supply voltage (Max) (V)
25
UVLO thresholds on/off (V)
8.4/7.6
Features
Error Amplifier, Multi-topology
Operating temperature range (C)
-55 to 125
Rating
HiRel Enhanced Product
Frequency (Max) (kHz)
500
Gate drive (Typ) (A)
1

UC1845A-EP具体的完整产品型号参数及价格（美元）：

UC1845A-EP的完整型号有：UC1845AMDREP、UC1845AMDREPG4、V62/03625-04YE，以下是这些产品的关键参数及官网采购报价：

UC1845AMDREP，工作温度：-55 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UC1845AMDREP的批量USD价格：3.095（1000+）

UC1845AMDREPG4，工作温度：-55 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网UC1845AMDREPG4的批量USD价格：3.095（1000+）

V62/03625-04YE，工作温度：-55 to 125，封装：SOIC (D)-8，包装数量MPQ：2500个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网V62/03625-04YE的批量USD价格：3.095（1000+）

UC1845A-EP的评估套件：

UC1845A-EP的电路图解：

UC1845A-EP的评估套件：