Part Number: LP8552 Other Parts Discussed in Thread: LP8556 , LP8556TM-EVM Hello E2E Team,
We are planning to use LP8552 High-Efficiency LED Backlight Driver .
We have got following requirement specs for the backlight LEDs module:
In day mode, operating…
Part Number: LP8552 Other Parts Discussed in Thread: TPS61177A , LP8556 , TPS61187 Hi,
we want to use LP8552 but we can not be sure of its operating temperature spec. In datasheet there writes -30C to +85C at section 7.3 but -40C to +85C at packaging information…
Part Number: LP8552 Hi team,
My customer want to use LP8552 in their project to drive 3 string * 3LED per string, the output voltage is about 10V, 80mA current/string. LP8552 should be configured as Figure 32 in datasheet.
1.with 10V/240mA output current…
Other Parts Discussed in Thread: LP8552 Hi, My customer has question about LP8552. Could you help us?
Q: How much is maximum value of minimum PWM pulse on-time at the over temperature range? *typical value is 1usec.
Best Regards,
tateo
Hi Hardy,
Thanks for your recommendation.
For my curiosity, I read the other post "LP8553 3 Channel Operation" in this forum, this is why I noticed the channel tie option.
There was a recommended tie order in the LP8552, what about this LP8553…
Hello Sean-san,
There are additional question about LP8556.
SDA & SCL lines are connected to the 3.3V line a pull-up resistor and remain HIGH during writing.
Although when not in use I2C, 'there lines connect to GND', is it OK to pull up to 3.3V…
Hi Shimizu,
Yes, you are correct. My bad, I was thinking LP8552.
Anyway for 3 channel operation they should use LP8552 instead and connect it the way I described earlier. If they use LP8553 and leave one string floating, it will cause LED fault. Also the…
