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UC2843A-Q1技术文档下载：
UC2843A-Q1 - 产品图解：
UC2843A-Q1 - 汽车类电流模式 PWM 控制器
UC2843A-Q1是TI公司的一款PWM与谐振控制器产品，UC2843A-Q1是汽车类电流模式 PWM 控制器，本页介绍了UC2843A-Q1的产品说明、应用、特性等，并给出了与UC2843A-Q1相关的TI元器件型号供参考。
UC2843A-Q1 - 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 - TI公司（Texas Instruments，德州仪器）
产品描述
产品特性
- Qualified for Automotive Applications
- 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
DESCRIPTION/ORDERING INFORMATION
The UC2843A control IC is a pin-for-pin compatible improved version of the UC2843. Providing the necessary features to control current mode switched mode power supplies, this device has the following improved features. Start up current is specified to be less than 0.5 mA. Oscillator discharge is trimmed to 8.3 mA. During undervoltage lockout, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
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