UC2842A
TI
德州仪器
电子元器件分类
电流模式 PWM 控制器
The UCx84xA family of control ICs is a pin-for-pin compatible improved version of the UCx84x family. Providing the necessary features to control current-mode or switched-mode power supplies, this family of devices has many improved features: startup current is less than 0.5 mA, oscillator discharge is trimmed to 8.3 mA, and during UVLO, the output stage can sink at least 10 mA at less than 1.2 V for VCC over 5 V.
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- Optimized for Off-Line and DC-DC Converters
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- Low Start-Up Current < 0.5 mA
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- Trimmed Oscillator Discharge Current
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- Automatic Feedforward Compensation
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- Pulse-by-Pulse Current Limiting
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- Enhanced Load Response Characteristics
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- Undervoltage Lockout With Hysteresis
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- Double Pulse Suppression
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- High-Current Totem Pole Output
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- Internally-Trimmed Bandgap Reference
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- Up to 500-kHz Operation