Part Number: TPS61185 Hi Team, We have an application that drives 8 LED outputs at 25ma each. Would it be possible to lower power consumption of the LED array by sequencing LED1-LED8 outputs? Kind Regards, Jejomar
Part Number: TPS61185 Other Parts Discussed in Thread: TPS61177A Hi.
Here has some query about TPS61185.
The minimum duty cycle of PWM dimming can be down to 1% when the dimming frequency is less than 2 kHz. (as shwon in TPS61185 datasheet)
Due to we have…
Part Number: TPS61185 Hello,
I have a customer that is worried about running this part at it's maximum rating.
They plan to run Vin to the IC at 5V and the boost power train at 24V and they will not be using the Fault function.
Will they see any issues…
Part Number: TPS61185 Hi Sean,
Sorry to be late. Would you kindly help to check below schematic? And I think it is direct PWM dimming(MODE connect to GND) and PWM signal is BL_PWM in below link waveform.
https://e2e.ti.com/support/power-management/f/196…
Part Number: TPS61185 Hello
Customer use below schematics to do ISET switching testing. But if switching rate is too fast, it will cause partial backlight LED not light up.
Could we know what is the issue root cause? Has any timing relationship between…
Part Number: TPS61185 Other Parts Discussed in Thread: TPS61177A , TPS61187 , , TPS61183 From customer test result, the boost output voltage is OVP voltage when no LED is attached. It seem not match with D/S.
Is it normal? Thanks.
Is the behavior the same…
Part Number: TPS61185 Hi expert,
My customer used TPS61185 for their panel backlight application.
They found out there is inrush current at 5Vin. We would like to know if it is normal operation when we used direct PWM dimming which is switching from…
Part Number: TPS61185 Hi,
We got a questions from customer about TPS61185. Could you help us?
[Question] They measured PWM dimming frequency in frequency program PWM dimming by EVM. The result is below.
Vin=10.8V LED=8S4P Riset=56k
They think PWM dimming…
Part Number: TPS61185 Hi,
We got a question from customer about TPS61185. Could you help us?
[Question] Our customer checked efficiency at Vin=6 to 21V under the following schematic. So they found efficiency drop at Vin=12V.
- What is cause of efficiency…
Part Number: TPS61185 Hi,
We got a question from customer about TPS61185. Could you help us?
[Question] - They consider solution for mosquitone of Cout ceramic capacitors. So they will try to add series resistor on Cout. If they use these way, is there…
