UCC2805 低功耗 BiCMOS 电流模式 PWM

描述

UCCx80x系列高速，低功耗集成电路包含离线和DC-DC所需的所有控制和驱动组件固定频率电流模式开关模式电源，器件数量最少。

这些器件具有与UCx84x系列相同的引脚配置，并且还提供内部全周期软启动和内部引线的附加功能 - 电流检测输入的边沿消隐。

UCCx80x系列提供多种封装选项，温度范围选项，最大占空比选择以及临界电压电平选择。较低的参考部件（如UCC2803和UCC2805）最适合电池供电的系统，而UCC2802和UCC2804的较高参考电压和较高的UVLO迟滞使其成为离线电源的理想选择。

UCC180x系列的工作温度范围为-55°C至125°C，UCC280x系列的工作温度范围为-40°C至85°C，UCC380x系列的工作温度范围为0°C至70°C。 °C。


Topology
Control Method
Vin (Min) (V)
Vin (Max) (V)
Frequency (Max) (kHz)
UVLO Thresholds On/Off (V)
Duty Cycle (Max) (%)
Gate Drive (Typ) (A)
Features
Rating
Operating Temperature Range (C)
Pin/Package

UCC2805	UCC2800	UCC2801	UCC2802	UCC2803	UCC2804
Boost Flyback Forward	Boost Flyback Forward	Boost Flyback Forward	Boost Flyback Forward	Boost Flyback Forward	Boost Flyback Forward
Current	Current	Current	Current	Current	Current
4.1	7.2	9.4	8.3	4.1	8.3
12	12	12	12	12	12
1000	1000	1000	1000	1000	1000
4.1/3.6	7.2/6.9	9.4/7.4	12.5/8.3	4.1/3.6	12.5/8.3
50	100	50	100	100	50
1	1	1	1	1	1
Error Amplifier Leading Edge Blanking Soft Start Adjustable Switching Frequency Multi-topology Current Limiting Dead Time Control	Adjustable Switching Frequency Current Limiting Dead Time Control Error Amplifier Leading Edge Blanking Multi-topology Soft Start	Adjustable Switching Frequency Current Limiting Dead Time Control Error Amplifier Leading Edge Blanking Multi-topology Soft Start	Adjustable Switching Frequency Current Limiting Dead Time Control Error Amplifier Leading Edge Blanking Multi-topology Soft Start	Adjustable Switching Frequency Current Limiting Dead Time Control Error Amplifier Leading Edge Blanking Multi-topology Soft Start	Adjustable Switching Frequency Current Limiting Dead Time Control Error Amplifier Leading Edge Blanking Multi-topology Soft Start
Catalog	Catalog	Catalog	Catalog	Catalog	Catalog
-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85
8PDIP 8SOIC 8TSSOP	8PDIP 8SOIC 8TSSOP	8PDIP 8SOIC 8TSSOP	8PDIP 8SOIC 8TSSOP	8PDIP 8SOIC 8TSSOP	8PDIP 8SOIC 8TSSOP

数据手册（1）

元器件购买 UCC2805 相关库存