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 mentioned…
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 or…
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…
Hi Ian,
If I understand it correctly, it works with a resistance load over the temperature range, correct?
So please create a plot with the VIN and VOUT in addition to the output current and zoom in to the power-on transition in more detail with max resolution…
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.
i want to verify…
Part Number: LM2776 Tool/software: The observed failure mode is that after some amount of time in the field (within a few days), the charge pump is no longer able to output -5V and instead outputs 0 to about -1.5V while getting quite hot. The IC is being…
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 application…
Part Number: LM2776 Hi,
I found an article "The forgotten converter". This article is about charge pump converter.
https://www.ti.com/lit/wp/slpy005/slpy005.pdf?ts=1711354424273&ref_url=https%253A%252F%252Fwww.google.com%252F
According to…
Part Number: LM2776 Other Parts Discussed in Thread: TL7660 I am planning to use LM2776 for VInput of 5.8V max. The operating ranges states is only 5.5V. but abs max is 6V. Please can you comment if it is okay.
Please can you also confirm that if TL7660…
Part Number: LM2776 I am getting Vout = -0.7V for the LM2776 part with the following conditions:
Vin = 5.5V
C between pins 5 and 6 = 1 uF
Cout = 2.2 uF
Any clues what might be happening here?
Thanks,
John
