UC2845AQ - 汽车类电流模式 PWM 控制器

UC2845AQ是TI德州仪器公司的一款PWM与谐振控制器产品，UC2845AQ是汽车类电流模式 PWM 控制器，本站介绍了UC2845AQ的封装应用图解、特点和优点、功能等，并给出了与UC2845AQ相关的TI元器件型号供参考。

UC2845AQ - 汽车类电流模式 PWM 控制器 - PWM与谐振控制器 - 离线隔离型DC/DC控制器和转换器 - 德州仪器

产品描述

The UC2842A/3A/4A/5A family of control ICs is a pin for pin compatible improved version of the UC2842/3/4/5 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.

The difference between members of this family are shown in the table below.

产品特性

Extended Temperature Performance of –40°C to 125°C
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

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