Part Number: LM3409HV Other Parts Discussed in Thread: LM3409 Hello
Were using the LM3409HV with a shunt FET. Our circuit is very similar to the circuit in AN-1953 LM3409HV Evaluation Board (see below). Five of these drives a bank of LEDs.
The problem…
Hi Clinton,
Unfortunately, I am damaging another board on Friday.
Those redline are the modification that I made. I remove the R1 so that I could use my own pwm driver. Also, I set the J1 into mode 1 which EN pins is shorted to Vin.
Here is the…
Hello,
Firstly thanks for answer.
Ordering codes of all components was written as comments in .pdf file attached in mail.
Here are ordering codes:
-> LM3409HV
-> C1 and C5: 1206 4u7 50V, Taiyo Yuden: UMK316AB7475KL-T
-> Q1: Diodes: DMP6050SSD…
Dear, David-san.
Thank you for your valuable advice.
The IC internal delay are defined by tDEL & tD-OFF.
Regarding PMOS delay(turn-on & turn-off), no enough explanation how
to calculate those precise as well(referring Qgs, Qgd, etc).
Could…
Part Number: TPS2372-3EVM-757 Other Parts Discussed in Thread: TPS2372 , TPS23881
Hi Team
Please help to support this issue.
For some problems encountered in the use of TPS2372-3, please help to answer, when using EVK: TPS2372-3EVM-757 to set…
Hello,
Could you please let me know the min/max range of Coff? In the datasheet P.33 , there is the discription that "Assume a Coff value (from 470pF to 1nF)" Can we use our of this 470pF to 1nF range ? (for example, 330pF or 1.5nF)
Best Regards…
Part Number: LM3409HV Other Parts Discussed in Thread: LM3409 Hello,
Make LED lighting circuit as attached.
Using 4pcs of LM3409HV to drive 4color(RGBW) LED (Osram LE RTDUW S2W) and 4 LEDs are connected in series.
During ON test LM3409HV and FET…
