Part Number: LM3880 Other Parts Discussed in Thread: TPS7A26 , Is it recommended to use TPS7A26 +3.3V output as VCC for LM3880 and the Power-Good output of the same TPS7A26 as the "External Enable signal" as illustrated in Figure 8-5 on Page 16 of LM3880…
Part Number: LM3880 Even if Vcc is 0V and the external pull-up is 3.3V before the power supply to the LM3880, is there any damage to the LM3880?
Probably it depends on how much mA the internal protection Di can flow. but what is this rationg?
Part Number: LM3880 When setting the EN terminal of the LM3880 by the resistance voltage divider method, the resistance voltage divider diagram on P6 of the data sheet shows input supply 2.7V to 5.5V, but considering VEN: min (1.0V) max (1.4V) If the…
Part Number: LM3880 when simulating the LM3880 sequecner i obtained those results , i was supposed to have three power-up sequences after 10ms because the value of C1 is designed such as
the EN pin set on after 10ms according to the datasheet of LM3880…
Part Number: LM3880 i wanna ask you guys about the resistor devider that could placed with the EN pin.
what it is for ?
how do we choose the values efficiently ?
Part Number: LM3880 Dear Support,
Please advise difference between part numbers LM3880MF-1AB/NOPB and LM3880MF-1AE/NOPB?
Kindly confirm also if the can be used interchangeably. Thanks
Part Number: LM3880 Hi TI
In our development, we use LM3880MFE-1AE/NOPB to control 66AK2G12ABYA60, the circuit is below:
Recently we found a failure with LM3880, Failure phenomenon: When the PCAB is powered off at an interval of about 4s and then…
Part Number: LM3880 Hi,
I am currently using the LM3880 for power sequencing the gate and drain bias of a pHEMT amplifier. From what I read in the datasheet the EN pin will enable the chip if it is tied to GND, and will disable the chip when the pin…
Hello,
I apologize for not letting you know that the sequencer was well simulated, apparently the problem was the version of the windows.
Thank you Yihe
Regards
Part Number: LM3880 Hi,
At the moment of signal output and power-on state, there will be two small voltage spikes. Attached are the design schematic and test waveform. Please help to check whether there is any problem with the design.
thank you! …
