(Hong Kong)
Product Summary
The UC3843BD1013TR is a high performance fixed frequency current mode controller. It is specifically designed for Off-Line and DC-DC converter applications offering the designer a cost-effective solution with minimal external components.
Parametrics
Absolute maximum ratings: (1)Bias and Driver Voltages (Zero Series Impedance, see also Total Device spec):30V; (2)Total Power Supply and Zener Current:30mA; (3)Output Current, Source or Sink:1.0A; (4)Output Energy (Capacitive Load per Cycle):5.0μJ; (5)Current Sense and Voltage Feedback Inputs:-0.3V to + 5.5V; (6)Error Amp Output Sink Current:10mA; (7)Operating Junction Temperature:+150℃; (8)Operating Ambient Temperature:0℃ to 70℃; (9)Storage Temperature Range:-65℃ to +150℃.
Features
Features: (1)Trimmed Oscillator for Precise Frequency Control; (2)Oscillator Frequency Guaranteed at 250 kHz; (3)Current Mode Operation to 500 kHz; (4)Automatic Feed Forward Compensation; (5)Latching PWM for Cycle-By-Cycle Current Limiting; (6)Internally Trimmed Reference with Undervoltage Lockout; (7)High Current Totem Pole Output; (8)Undervoltage Lockout with Hysteresis; (9)Low Startup and Operating Current; (10)Pb-Free Packages are Available.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
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 UC3843BD1013TR |
STMicroelectronics |
Current Mode PWM Controllers 0.5mA Current Mode |
Data Sheet |
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Data Sheet |
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Data Sheet |
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