Part Number: TPS61187 Hi,
We are attempting to use the TPS61187 for driving 60 white leds at 20mA, and chips are failing after a while.
Here is the schematics, LEDs have been left out, but are exactly as specified in the datasheet and evm.
Input…
Not sure if I am misreading the data sheet, but i cannot find a range for an input current for Vin? I am planning to use power from a USB C connector. Can anyone advise further?
Other Parts Discussed in Thread: TPS61187 , TPS61183 Hi,
My customer has question about TPS6183 and TPS61187. Could you tell me about questoin?
[Question] What's the difference of TPS61183 and TPS61187?
Best Regards, tateo
Part Number: TPS61176 Other Parts Discussed in Thread: LP8556 , TPS61181A , TPS61187 Dear Teams,
Can the TPS61176 be used in the following ways?
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The TPS61176 has two types of operation, Analog Dimming mode and PWM Dimming mode, but I want…
Hi Yihung,
No we don't suggest to do this, since the control loop is not very fast, it is not suitable to adopt this way for direct PWM dimming. You can check our LP8556/ TPS61177A/ TPS61187 which can support direct PWM dimming.
Regards
Sean
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…
Hi Chin,
You can try with TPS61177A / TPS61187 / LP8556 since it can change the switching frequency, it may help to achieve better efficiency.
Regards
Sean
Hi Serkan,
It may cause some parametrs not very stable or can't meet the specs on datasheet. But you can refer to LP8556 or TPS61177A/TPS61187 for choice.
Regards
Sean
Hi Bogey,
You can try with TPS61177A/TPS61187/LP8556 since it can change the switching frequency, it may help to achieve better efficiency.
Can you share us what's the detail application? What's the efficiency now? And what's the target efficiency…
Hi Bogey,
What's your application? Do you really need 350mA/channel? We don't have a device that very match MP3398. If you don't need such high output current , may be TPS61194,TPS61177A,TPS61187 is good. If you really need such high cureent, Maybe…
