techmannih/usbc-charger

COMPLIANCE_PLAN.md

PCB

Schematic

# Compliance plan

Status: engineering-validation design; no certification, registration, licence, TID or logo authorization has been obtained.

This plan must be frozen against the exact PCB revision, BOM, firmware/silicon revision, mains cord/plug and final enclosure submitted to the labs. A change to any safety-critical item can require review or retest.

## Intended product definition

- External Class II power adaptor for IT/consumer equipment.
- Label input: 100–240 VAC, 50/60 Hz. The AC/DC module's 85–265 VAC figure is an operating range, not the proposed consumer label range.
- USB-C source PDOs: 5 V/3 A, 9 V/2 A and 12 V/1.5 A; 18 W maximum; exact standard IP6520 non-PPS variant.
- No protective-earth connection.
- Final construction: closed, touch-safe, flame-retardant enclosure with a rated mains cord/plug and strain relief.

## Workstream matrix

| Workstream | Design evidence available | Required independent evidence before sale |
| --- | --- | --- |
| India electrical safety | Isolated module architecture, fused/protected input, primary/SELV keepout, controlled BOM | BIS-recognized lab report and registration for the final adaptor under the classification/standard confirmed by BIS; construction, dielectric, temperature and abnormal-condition results |
| International electrical safety | Hazard-based design provisions and component documentation | Accredited evaluation to the applicable market edition, commonly IEC 62368-1 or its national adoption; national deviations and marking review |
| USB Type-C/PD | Standard non-PPS IP6520 reference topology and fixed-supply PDO intent | USB-IF-authorized lab execution of every applicable Type-C and PD CTS section; valid TID/listing before using certified USB claims or logos |
| EMC/immunity | CMC, X2 capacitor, local bypassing, short power loops and port ESD parts | Conducted/radiated emissions and applicable ESD, EFT, surge, dips/interruptions and immunity tests on the final closed product |
| Energy efficiency | Low-power topology selected | Applicable market efficiency/no-load measurements and declarations for external power supplies |
| Materials/mechanics | Mounting holes and fit-check enclosure model | Resin flammability evidence, touch-access/probe tests, impact/drop, cord anchorage, torque, heat/ball-pressure and enclosure construction review |
| Production conformity | Exact MPNs and supplier numbers recorded | Approved-vendor list, incoming inspection, traceability, calibrated end-of-line tests and controlled change process |

## India submission package

Prepare at minimum:

- final schematic, PCB artwork/stack-up, critical-component list and BOM;
- component certificates/datasheets for the AC/DC module, fuse, MOV, X2 capacitor, PCB laminate, enclosure resin, connector and mains lead/plug;
- photographs and construction drawings showing insulation barriers, spacings, internal wiring, strain relief and markings;
- product label artwork, model/series declaration and user safety instructions;
- risk assessment, abnormal-condition rationale and production test procedure;
- samples that exactly match the declared PCB, enclosure and critical BOM.

India's current BIS material lists “Power Adaptors for IT Equipments” under IS 13252 (Part 1):2010. The published uniform test report references amendments A1:2013 and A2:2015. The applicant/lab must verify the current classification and amendments at submission time; do not print a BIS standard mark or registration number before grant.

## Change control

Treat these as certification-affecting changes: AC/DC module source or construction, PCB layout in the mains/isolation region, fuse or MOV rating, X/Y safety capacitor, enclosure material/wall geometry, mains cord/plug/strain relief, USB-PD buck SoC variant or supported PDOs. Other IP6520 family variants are not approved substitutions for the standard non-PPS `IP6520`. Record the rationale and obtain lab/certification-body disposition before production.

## Authoritative starting points

- [BIS Scheme II compulsory-registration products](https://www.bis.gov.in/product-certification/products-under-compulsory-certification/scheme-ii-registration-scheme/)
- [BIS power-adaptor uniform test report](https://www.bis.gov.in/PDF/UTRFs/FINALIZED_TRF_IS_13252_A1_A2_Power_Adaptor_for_IT_Equipment_V1_3.pdf)
- [MeitY series guidelines](https://www.meity.gov.in/sites/upload_files/dit/files/Revised_SeriesGuideline.pdf)
- [IEC 62368-1:2023 publication](https://webstore.iec.ch/en/publication/20471)
- [USB-IF USB Type-C/PD compliance overview](https://www.usb.org/usbc)
- [USB-IF compliance program](https://www.usb.org/compliance)
- [USB Power Delivery Compliance Test Specification](https://www.usb.org/document-library/usb-power-delivery-compliance-test-specification-0)