Part Number: LM2776 Other Parts Discussed in Thread: OPA4188 , , LM2662 In a PCB(HV Board) we have a DC 5V that power the LM2776 for generating -5V. The load are multiple OPA4188 amplifiers with a +5 and -5 supply.
When we turn on the Power from our…
Part Number: LM2776 Hi TI team,
I am using the LM2776 to generate –5V from a +5V input (schematic attached).
Issue description
I observed an abnormal startup behavior:
If I power the board directly with 5V, the –5V output only reaches about…
Part Number: LM2776 Other Parts Discussed in Thread: LM317 , G'day,
Please see the below waveform, it is the startup waveform of a LM317 regulator. As you can see it exceeds 6V for a brief period of time. The volatage is being feed into a lm2776 switch…
Part Number: LM2776 Other Parts Discussed in Thread: TPS7A02 , TINA-TI , INA333
Tool/software:
Hello Everyone I have question for LM2776.
I want to nagative voltage for pin V- of INA333. My circuit have TPS7A02 for positive voltage (+3V) , I'm enter…
Part Number: LM2776 Tool/software: Good afternoon.
i plane to use LM2776DBVR.
page 1 (data sheet ) indicate in typical application the chip with pins.
look like pin number 1 is Vin and so on.
same data sheet page 3 - pin number 1 is Vout.
…
Part Number: LM2776 Other Parts Discussed in Thread: TPS7A30 , TPS63700 , TPS60402 , Hello TI support,
We are amplifying 2mV signal with precision signal conditioning circuit having gain of around=500. We need negtive supplies for the opamps. I came…
Part Number: LM2776 Tool/software: Hi all,
About internal MOSFET Structure of this device, This device is a DCDC with intergrated FET and uses an internal MOSFET.
1) Is this MOSFET a high-current power MOSFET?
2) Is this MOSFET a vertical structure…
Part Number: LM2776 Tool/software: Hello ,
I am using the LM2776 to generate a negative supply, and in the Electrical Characteristics section of the datasheet, the minimum enable voltage ( VEN(min) ) is specified as 1.2V , but the maximum VEN is not…
Part Number: LM2776 Other Parts Discussed in Thread: LMP7721 , INA128 Hello evevryone!
I have a question that may seem dumb: What is the VIN voltage range for LM2776?
When I checked the datasheet I saw that it is between 2.7 and 5.5V, in the typical…
Part Number: LM2776 Tool/software: Hello,
I would like to ask you about how to calculate the input current for the LM2776. For general converters, the input current can be calculated from the formula Input power x efficiency = output power. For a negative…
