Hi Liu,
I already replied in another same thread.
https://e2e.ti.com/support/power-management-group/power-management---internal/f/power-management---internal-forum/1486988/tps61194-q1-tps61194-q1-low-voltage-6v-display-flickering-issues
BR, Gra…
Part Number: TPS61194-Q1 The SW frequency is 2Mhz. When the PWM is 19K and the duty cycle is 7.5%, Output capacotr have sound noise.
But if I increase the duty cycle by more than 10%, the sound noise disappears;
Why? Can you explain this phenomenon…
Part Number: TPS61194-Q1 Other Parts Discussed in Thread: TPS61194 , LMR14020-Q1 Hi,
The customer experienced a cluster backlighting issue.
Issue: LCD backlight does not turn on when OFF -> ON at low temperature ~ -15℃.
In normal case, 27V voltage…
Part Number: TPS61194-Q1 Hi expert,
Could you please help to explain why there are two different package layouts on datasheet page 34 and page 36? Which one should we follow? Thanks.
Arie
Part Number: TPS61194-Q1 Hi Team,
We found below words in datasheet.
Is it essential to set 30% higher than maximum LED string voltage? We want to set maximum LED string voltage + 2V because 30% higher will exceed max Vout of TPS61194-Q1. Does…
Part Number: TPS61194-Q1 Hi support team.
I can't find any difference from non Q1 product regarding Specs and Functions.
If there is a difference, please let me know.
Regards,
Higa
Part Number: TPS61194-Q1 Hi,
The customer wants to know the VOUT_MAX external resistance setting value.
I don't think you need to set it 30% higher than the maximum LED string voltage.
Customer's LED string voltage specification : Min 27V, Typ…
Part Number: TPS61194-Q1 Hi Team,
My customer now use TPS61194-Q1 in their applicaiton.
Their Vin=12V. Vout=24V, current setup is 100mA*4.
May I ask whether I could use the following equation to calculate the input current?
Vin*η*Iin=Vout*Iout…
Part Number: TPS61194-Q1 Other Parts Discussed in Thread: TPS61194 Hi team,
I received some questions about TPS61194-Q1 start up and shutdown sequence. Please support.
Figure 19 mentions the period T = 50us from VDDIO/EN to LDO shutdown. I think…
Part Number: TPS61194-Q1 Hi team,
My customer captured a waveform which is their reset sequence.
At the beginning of the reset sequence, PWM input is still running even though VDDIO/EN is low. Is it okay for this device?
Since the reset sequence…
