(China (Mainland))
Product Summary
The UC3844D is a SMPS controller. It is specially designed for Off-Line and DC to DC converter applications with minimum external components. The UC3844D features a trimmed oscillator for precise duty cycle control, a temperature compensated reference, high gain error amplifier, current sensing comparator and a high current totempole output for driving a Power MOSFET.
Parametrics
UC3844D absolute maximum ratings: (1)Supply voltage: 30V; (2)output current: 1A; (3)analog inputs: -0.3 to 6.3V; (4)error amp output sink current: 10mA; (5)power dissipation: 1200mW; (6)power dissipation: 460mW; (7)storage temperature range: -65 to 150℃; (8)lead temperature: 300℃.
Features
UC3844D features: (1)Low Start up Current; (2)Maximum Duty Clamp; (3)UVLO With Hysteresis; (4)Operating Frequency up to 500KHz.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 UC3844D8 |
Texas Instruments |
Current Mode PWM Controllers Current Mode |
Data Sheet |
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UC3844D8TR |
Texas Instruments |
Current Mode PWM Controllers Current-Mode PWM Controller |
Data Sheet |
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UC3844DG4 |
Texas Instruments |
Current Mode PWM Controllers Current-Mode PWM Controller |
Data Sheet |
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UC3844DR2 |
ON Semiconductor |
Other Power Management 52kHz 1A Current PWM |
Data Sheet |
Negotiable |
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UC3844DR2G |
ON Semiconductor |
Other Power Management 52kHz 1A Current PWM w/48% Duty Cycle Max |
Data Sheet |
Negotiable |
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UC3844DTR |
Texas Instruments |
Current Mode PWM Controllers Current-Mode PWM Controller |
Data Sheet |
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UC3844DX |
Fairchild Semiconductor |
Current Mode PWM Controllers Current Mode PWM Control IC |
Data Sheet |
Negotiable |
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UC3844DTRG4 |
Texas Instruments |
Current Mode PWM Controllers Current-Mode PWM Controller |
Data Sheet |
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