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
Part Number: LM2776 Hello
i have designed a negative 5V supply with the LM2776DBVR
as i read the datasheet i'm not sure what would be the best C FLY to chose ?
i chose 2 x 4.7uF ?
for the input / output i chose 10uF / 10uF (although the EVM has 2 x…
Part Number: LM2776 Hello team,
The output ripple measurement graph (Fig 1) is very different from the output ripple calculation equation (equation 4) on the datasheet.
The shape of the graph on Figure 1 is not linear. What is the condition of the circuit…
Part Number: LM2776 Other Parts Discussed in Thread: OPA2197 Hello everyone
Can I use two or more LM2776s by connecting them to the cascade? Not specified in its datasheet?
Part Number: LM2776 I am using the LM2776 to supply the negative rail of a dual supply rail to rail in & out op amp. If the LM2776 has no output for the negative rail but the positive rail is still there, will the op amp swing to the positive rail or…
