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- Apr 3, 2012
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Hey guys so I finish my first 445nm driver base on tps611650
When I hook up the 445 diode to the driver nothing happen so I measure the Vout of the driver. I got the 3.9v reading while my battery is 4.0v (WTF? the driver is bucking?) So I hook the 650 diode to the driver instead and it seem to work fine. It output a stable 300mA and when I change the sense resistor the current change seem to match the calculation from the data sheet.
My set up is exactly the same as above except I change the input and output cap into 10uf. If anyone can tell me what I am doing wrong it will be greatly appreciated.:thanks:
When I hook up the 445 diode to the driver nothing happen so I measure the Vout of the driver. I got the 3.9v reading while my battery is 4.0v (WTF? the driver is bucking?) So I hook the 650 diode to the driver instead and it seem to work fine. It output a stable 300mA and when I change the sense resistor the current change seem to match the calculation from the data sheet.
My set up is exactly the same as above except I change the input and output cap into 10uf. If anyone can tell me what I am doing wrong it will be greatly appreciated.:thanks:
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