Other Parts Discussed in Thread: TL3842
Part Number: TL3842
Tool/software:
Dear Support Team
I'm trying to make a 12V output Flyback SMPS using TL3842. The load is a Peltier element with TEC1-12703 (12V rated voltage, maximum current 3A, power…
Part Number: TL3842 Hi,
We want to regulate the current through a solenoid coil.
We are planning to connect the voltage across the current sense resistor (connected in series to the solenoid coil and switch) to the Vfb pin to achieve this. Would this…
Other Parts Discussed in Thread: TL3842 , TL3844
I'm posting this for a customer,
Hi, I'm designing a 110/220 -> 12v 2A off line switching power supply using a TL3842/3/4/5 and I've read all the related…
Sharath,
It seems that the minimum voltage for the TL3842 was copied into the TL3843 rules.
The output schematic changes between doing this WEBENCH for TL3843 and TL3843 so the designer does seem to honor the differences in the supply voltage needed…
Other Parts Discussed in Thread: TL3842 , TL3844 Hi, I have designed a 16W SMPS using TL3844 with a wide input of 20V to 150VDC. TL3844 has a max duty cycle of 50%. Should i have considered TL3842 instead - TL3842 has max duty cycle of 100%.
Attached…
Hello Rak,
The timing resistor can be as low as 800 ohms on the TL3842B. The " TIMING RESISTANCE vs. FREQUENCY" chart was inherited from the TL3842. The TL3842B has a specified discharge current and can support lower timing resistance without wild…
Hi Len,
The UCCx8C4x is an enhanced BiCMOS version with pin-for-pin compatibility to the industry standard UCx84xA family. There is a offline flyback design example in Section 9.2 in datasheet.
https://www.ti.com/lit/ds/symlink/ucc38c42.pdf
Below…
