In a previous post it was confirmed that the voltages HV1, LV1, HV0, LV0, HV2, LV2 + VDD, VEE, VCM must be supplied externally to the evaluation kit.In addition the datasheet states - the max power supply slew rate should be 10V/ms (page 9)- the external supplies need to be sequenced according to table 4, page 14power up1) Driver supplies2) LV1,3) HV1,4) LV2, LV0, HV0, HV2, VCWand the reverse for power downAccording to the user manual for the EVM, the user of the eval kit has to externally supply the following 10 voltages:VDD = 5VVEE - 5VHV0 = +1.9VLV0 = -1.9VVCW = 11VVAA = 2.5VHV1 = 61VLV1 = -20.9VHV2 = 32VLV2 = -11.9VThe EVM only generates- 3.3V using the TPS79633DCQR- 1.2V using the TPS73201QDBVSo my questions are 1) The user has to apply 11 external voltages to get the EVM kit functional?a) 5V supply for the EvalKitb) 10 Voltages VDD, VEE, VCW, VAA and HVx, LVx2) What are the consequences (for the TX517) if the power supplies used exceed the max. power supply slew rate requirement of 10V/ms as specified for the TX517 ?thank youOliver
Thank you for your interest in the TX517. I am assigning your post to the correct applications engineer. He should respond soon.
Mixed Signal Applications
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In general, yes, they are all required for full functionality of the device. If CW mode is not used, then VCW is not required. HV0 and LV0 are used for damping the output at low voltages, so it only helps the performance. To get 17 levels, then two channels of 5-level output are required. You can simply use the HV1/LV1 and HV2/LV2 as required for your application and also scale the voltages to your application. The driver voltages are always required.
Chuck Smyth, Applications Engineering, HealthTech-Imaging
Please verify post if question is answered.
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