Part Number: LM4040-N
I am trying to use the LM4040BIM3-2.5 to generate dual polar power supply similar to the circuit described in TIDA-00445, and the circuit I am doing is shown below.
The output from U10 is 24V, I am testing D10 and D11 under no load condition. Now the positive output is 2.62V and the negative output is -2.24V. Could anyone tell me if there is anything wrong with the circuit?
Plus, 2.62V and -2.24V are the two measurements if the connection of my probe is reversed, i.e., if I have +probe to 2V5P and -probe to GND, it is 2.62V, while having -probe to 2V5P and +probe to GND, it is -2.24V. Could anyone give me some ideas on what should I do for a correct output voltages?
In reply to Lee Young:
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.