(China (Mainland))
Product Summary
The UCC3817DTR is a bicmos power factor preregulator. The UCC3817DTR provides all the functions necessary for active power factor corrected preregulators. The controller achieves near unity power factor by shaping the ac input line current waveform to correspond to that of the ac input line voltage. Average current mode control maintains stable, low distortion sinusoidal line current.
Parametrics
UCC3817DTR absolute maximum ratings: (1)supply voltage: 18V; (2)gate drive current, continuous: 0.2A; (3)gate drive current, 50% duty cycle: 1A; (4)input voltage, CAI, MOUT: 8V; (5)input voltage, PKLMT: 5V; (6)input voltage, VSENSE, OVP/EN: 10V; (7)input current: 10mA; (8)maximum negative voltage: -0.5V; (9)power dissipation: 1W.
Features
UCC3817DTR features: (1)controls boost preregulator to near-unity power factor; (2)limits line distortion; (3)world wide line operation; (4)over-voltage protection; (5)accurate power limiting; (6)average current mode control; (7)improved noise immunity; (8)improved feed-forward line regulation; (9)leading edge modulation; (10)150μA typical start-up current; (11)low power BICMOS operation; (12)12V to 17V operation.
Diagrams
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 UCC3817DTR |
Texas Instruments |
Power Factor Correction ICs BiCMOS Power Factor Preregulator |
Data Sheet |
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UCC3817DTRG4 |
Texas Instruments |
Power Factor Correction ICs BiCMOS Power Factor Preregulator |
Data Sheet |
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