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PHILIP HSU
over 1 year ago
Power management
Power management forum
TPS7A78: TPS7A78 incluse some circuit protection in the front of Full bridge recitifier or not
TI Thinks Resolved
Part Number:
TPS7A78
Hi Sir,. please help to check (1) What is C6 , R5 voltage rating and what is footprint should I use for this AC/DC application (2) Should I incluse some circuit protection in the front of Full bridge recitifier or not. (3...
PHILIP HSU
over 1 year ago
Power management
Power management forum
TPS7A78: Please share the TPS7A78 CAD file for design
TI Thinks Resolved
Part Number:
TPS7A78
Hi Sir,. please share he
TPS7A78
CAD file for design,. thanks
John Turner
over 1 year ago
Power management
Power management forum
TPS7A78: TPS7A78 Negative Voltage output?
TI Thinks Resolved
Part Number:
TPS7A78
Is it possible to generate a -5V rail using the
TPS7A78
?
Bart
over 1 year ago
Power management
Power management forum
TPS7A78: 3-phase AC supply - device connections
Resolved
Part Number:
TPS7A78
Team, can someone confirm whether the connections in the marked area below
Brian Angiel
over 1 year ago
Power management
Power management forum
TPS7A78: Input Range
TI Thinks Resolved
Part Number:
TPS7A78
Regarding
TPS7A78
, I see in the datasheet that the highlighted input voltage range is 70 to 270VAC. I understand that Cs and Rs affect the maximum AC supply voltage, so: Can this device support 347 to 480VAC input with a specific...
James Zhan
over 1 year ago
Power management
Power management forum
TPS7A78: SCIN voltage calculation
TI Thinks Resolved
Part Number:
TPS7A78
Hi team, On the datasheet of
TPS7A78
, section 7.3.7, I found that the Vscin=4*(Vldo+0.6V)-2.5V, so the Vscin should be around 20V. But according to the block diagram, SCIN should be the output of half bridge/full bridge rectified...
Mike O'
8 months ago
Power management
Power management forum
RE: ACDC Power Supply 220Vin AC -5Vout DC @100mA, ISOLATED but with NO transformer?
Hello, The
TPS7A78
is for non isolated designs? You can easily do this with a flyback converter. Generally PFC is not needed for less than 75W for general applications. I think lighting requires PFC at 25 W greater. So I am not sure why you...
JCHK
over 1 year ago
Power management
Power management forum
RE: TPS7A78EVM-011: test set-up
HI Vincenzo, The critical resistor is either R5 or R6. The Values on the EVM are sized to per the maximum clamp voltage of RV1. As you correctly state above, thsi is what ensures that the surge current into the device is kept under 2.5A for a line...
Haidar Hamoo
over 1 year ago
Power management
Power management forum
RE: TPS7A78EVM-011: TPS7A78EVM-011, wattage spec for R5, R6, and R7
Hi Sana,
TPS7A78
product folder is available online and you can get 3.3V output samples now, as for evaluation module (EVM), unfortunately TI store run-out of stock but they should replenish stock within 2 months. The EVM online users's guide and...
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