Other Parts Discussed in Thread: TPS65142 Hello, TPS65142 WLED BOOST REGULATOR is not enabled with below sequence. -Vin input --> Vbat input(controled by external load SW) --> PWM --> EN The WLED BOOST Converter is operated when the loadsw is changed…
Other Parts Discussed in Thread: TPS65142 Hi,
TPS65142 have three UVLO(Vin, Vbat, WLED).
Which is UVLO voltage of WLED control circuit supply of this voltage Vin or Vbat?
Other Parts Discussed in Thread: TPS65142 as the subject ,I use tps65142 to control the backlight of LCD at DM8168.
I have given the PWM signal and enable the tps65142, but my LCD just flickering a moment ,less than 1 seconds probably。
According to…
Hello Sandeep,
What is the input voltage for your application? Take a look at the TPS65142. this device has LCD Bias and the LED driver integrated.
If this answers your question please help and click on 'This answers my issue.'.
Thank you.
Best…
Hello Kuo John,
Could you please provide more details regarding the LCD bias requirement, the needed voltages and loads (e.g. AVDD voltage and load )?
TPS65154 and TPS65142 could be good candidates based on given info.
BTW, I deleted the attachment…
Hi,
I've attached the 2013 User's Guide for power products. Starting on page 53 you will find a selection of PWM controllers. many of these teh frequency can be varied according to external criteria.
As an example if you use a UC3842 it is a simple…
Gary,
Most any of our power controllers with dual output capability will provide the control. See attached document starting at page 50 with the dual output controllers on page 53 and 54 and choose what features you want.
Regards,
John
