Part Number: LM3445 Hi
How much is the possible range of dimming controlled by this device if the triac dimmer is used?
As it's mentioned at the datasheet , the max duty is 96.5%. So that means the controllable dimming range is 0%~96.5%?
(This operation…
Part Number: LM3445 Hello,
Regarding to 1% low current LED control on LM3445, my customer is asking some question.
(Question)
1) Due to 1% low current LED control over total current is kept, what point should they consider?
We refer following…
Part Number: LM3445 Other Parts Discussed in Thread: LM3447 , TPS92075 , LM3444 Team,
Do we have any design aids for LM3445 buck-boost configuration?
There is nothing on the TI web design program. I can’t select any Vin AC voltages less than 110VAC…
Part Number: LM3445 Hi,
We got a question from the customer about LM3445. Could you help us?
[Question] How can we estimate the start-up time under the following condition?
Topology: Isolated Flybuck Dimming: Triac dimming Vin: AC90~110V Vf: 30…
Part Number: LM3445 Dear all:
I want to choose LM3445 chip, but it has two packages, among which SOIC (D)|14 package has 4 more pins, but no connection.Given the same functionality, why are there two package designs?I don't know which package to choose…
Hi,
I can find only section 12. Transformer Design, which shows only spec for the eval board, not how to design a new design.
I bought 2 eval boards (120VFLBK-NOPB) from Mouser. They are both non-functional, putting out 0V, with or without load. Input…
Part Number: LM3445 Other Parts Discussed in Thread: TPS92075 , Hi,
We got a question from the customer about LM3445. Could you help us?
[Question] Is there any application notes for PWM Dimming? They would like to make sure how to design the PWM…
HI ,
Thank you for your response
I didn't checked the voltage across R13 as soon as supply given even the 100 V ac R13 and Q1 failed also sometimes D5 and lm3445 failing .
yes as per application note transformer specification Tx is designed and…
