Part Number: LM22676
Input voltage = 20 volts
Output = 8 volts
Something is happening to the part during operation. It appears to be "shorting", and generates 8 volt output. Can anyone help me figure out a root cause?
Part Number: LM22676 Hi
My customer use LM22676 output -9V from +14V input voltage.Schematic as below. There are question is about the capacitor between input to output. About the schematic, is there any requirement about the C802 value ? If have , how…
Part Number: LM22676 Other Parts Discussed in Thread: LM22674 Hi TI teams,
When we use LM22676 or LM22674, we design the circuit as below, the FB signal is from the MCP6002. The output voltage is changed following the DAC output signal.
But when we…
Part Number: LM22676 Other Parts Discussed in Thread: LM25576 , LM5576 Tool/software: WEBENCH® Design Tools I am trying to learn Webench. I am still a novice.
Is there a good tutorial available?
I want to analyze/simulate the LM22676 in the inverting application…
Part Number: LM22676 Other Parts Discussed in Thread: LM2594HV , , LM46000 I have two questions.
I am using the LM22676MRE-5.0 and I need a 50V or higher input voltage device. I only need 0.7A max output, operating temp range will be 15-40C. I found the…
The LM2576 is OK.
However, you might want to look at newer devices, such as the LM2676 or LM22676.
The following is a list of application notes you might want to look at for the IBB.
I have also attached a helpful application note for IBB.
Part Number: LM22676 I'm trying to use the UVLO feature. This appears to be only accessed using the ENABLE pin. The datasheet specification for the pin reads:
VEN Enable Threshold Voltage V 1.6V typical
VENHYST Enable Voltage Hysteresis 0.6 V
Part Number: LM22676 Other Parts Discussed in Thread: LM22670
Please give me your opinion.
My customer is trying to find the replace of Sanken's module MPM80 for FY2018 model.
Thanks Frank, your answer has been very useful for taking a decition. Just for closing the conversation; I need the last clarification from you.
When you said:
"Depending on your output current requirement, we have many devices that work with ceramic…
Understand on the layout, you are trying to fit the device into the LM2676 schematic. Unfortunately, it looks like you will need a resistor. Otherwise the current limit will be very low and you won't be able to get any output current.