Additional explanation：
DMD power supply VCC = 3.3V
Input:
PWRDNZ = 3.3V
RSTZ = 3.3V
Output:
EN_OFFSET = 0 TPS65145 is not enabled.
Which signal or sequence should I check next?
Part Number: DLPC6401 Other Parts Discussed in Thread: TIDA-00782 , , TPS65145 Dears,
1. How to work about " power down circuitry" In TIDA-00782 Schematic and Block Diagram (from DLPC6401).pdf TIDA-00782 Schematic and Block Diagram (from DLPC6401…
Hello Sam,
What is the requirement for the input supply? Do you have the max specification for the LCD bias part?
The LCD bias with integrated LED driver solutions we have do not exactly fit to your requirements but I would recommend the TPS65154. It…
Hi Will,
Right now we know that the noise is emanating from the TPS65145 power regulator on the board. What we advise is that you do NOT touch that regulator under any circumstances and that you take extra ESD caution when handling the board.
The EVM…
Eunmi,
The mirrors do not have a continuous refresh of 10kHz. The high pitch noise you're hearing probably is coming from the TPS65145 power regulator on the board - be careful not to touch that, otherwise you'll damage the board and DMD.
We…
Sorry about that. I am copying the information here:
DLPC350 drives DMD_PWR_EN high to request the power management circuits to power the DLP45000 supplies.There is a power down circuitry on the LightCrafter 4500:
In this circuit, when DMD_PWR_EN is driven…
Hello Raphael,.
The resistor divider values are 96k for the one from reference to GND and 163.7k for the one from FB4 to reference. But the accuracy of resistors in silicon is very process dependent. The proportion of the resistors will stay the same…
