Technical Support

LiTong provides comprehensive technical resources for Injoinic products including datasheets, application notes, reference designs, selection guides, and evaluation boards. Our FAE team offers design review services, schematic and layout guidance, debugging support, and application-specific recommendations. We also provide sample kits for evaluation and can arrange factory training sessions for high-volume customers.

Contact our technical support team for access to documentation and design assistance. We can provide samples for evaluation.

Samples of Injoinic products are available through LiTong for qualified customers. To request samples, contact our sales team with your company information, project details, and required quantities. We typically provide small quantities (5-10 pieces) for evaluation purposes. For larger sample requirements or production ramp-up, we can discuss your forecast and schedule. Sample lead time is typically 1-2 weeks for standard products.

Contact our sales team with your project details to request samples. Provide as much application information as possible.

Yes, LiTong provides complimentary schematic and PCB layout review services for designs using Injoinic products. Our FAE team reviews your design for proper component selection, circuit configuration, thermal management, and EMI considerations. We provide detailed feedback with recommendations for optimization. This service helps catch potential issues early, reducing debug time and improving design reliability.

Submit your schematic and layout files to our FAE team for review. Early review is recommended before PCB fabrication.

LiTong aims to respond to technical inquiries within 24 hours for standard questions. Complex design issues or questions requiring factory consultation may take 2-3 business days. For urgent production issues, we provide priority support with faster response times. Our FAE team is available during business hours (9 AM - 6 PM China time) for phone or video consultation.

For urgent issues, contact us by phone. For detailed technical questions, email with supporting documentation.

Yes, LiTong provides troubleshooting support for designs using Injoinic products. Our FAE team can help diagnose issues through schematic review, waveform analysis, and remote debugging. For complex issues, we can coordinate with Injoinic factory engineers for deeper analysis. Common support areas include protocol detection problems, power conversion efficiency issues, thermal management, and EMI debugging.

For troubleshooting, provide detailed problem description, schematic, and measurement data. Contact our FAE team for assistance.

LiTong offers product training sessions for customers using Injoinic products. Training topics include product overview, application design guidelines, troubleshooting techniques, and hands-on workshops. Training can be conducted at your facility, our offices, or via web conference. For high-volume customers, we can arrange customized training programs tailored to your specific applications.

Contact us to schedule training sessions. We can customize content for your team's needs.

The latest Injoinic datasheets and application notes are available from LiTong. Contact our sales or technical support team to request documentation. We maintain the most current versions direct from the factory. Documentation packages typically include datasheets, application notes, reference design files, and software tools. We can also provide preliminary documentation for upcoming products under NDA.

Contact our team to request documentation. Specify the products you're interested in.

When requesting technical support, please provide: detailed problem description, product part numbers, schematic and PCB layout files, bill of materials, measurement data or waveforms, operating conditions (voltage, temperature, load), and any error messages or symptoms observed. The more information you provide, the faster we can diagnose and resolve your issue.

Gather all relevant documentation before contacting support. Detailed information leads to faster resolution.