powerintegrations

name: powerintegrations description: Power Integrations MPN encoding patterns, package decoding, and handler guidance. Use when working with Power Integrations SMPS controllers, LED drivers, or gate drivers.

Power Integrations Manufacturer Skill

Company Overview

Power Integrations is a leading supplier of high-voltage analog integrated circuits for energy-efficient power conversion. Their products include:

• AC-DC Converters: Offline switching power supply ICs
• LED Drivers: High-efficiency LED driver ICs
• Gate Drivers: High-voltage gate driver ICs for motor control
• Power Factor Correction: Active PFC controller ICs

Key differentiators:

• Integrated high-voltage MOSFETs in many products
• Patented EcoSmart energy-saving technology
• FluxLink magnetically-coupled feedback (InnoSwitch)

MPN Structure

Power Integrations MPNs follow this general structure:

[PREFIX][GENERATION][NUMBER][PACKAGE]
   |         |         |        |
   |         |         |        +-- Package code (Y, G, K, C, etc.)
   |         |         +-- Part number within family (2-3 digits)
   |         +-- Generation indicator (single digit)
   +-- Family prefix (TOP, TNY, LNK, INN, PFS, LCS, CAP, SEN)

Example Decoding

TOP249YN
|  |  ||
|  |  |+-- N = Package variant (YN = TO-220 variant)
|  |  +-- Y = TO-220 package
|  +-- 249 = Part number (49 in generation 2)
+-- TOP = TOPSwitch family

INN3673C
|  |   |
|  |   +-- C = InSOP-24 package
|  +-- 3673 = InnoSwitch3 part number
+-- INN = InnoSwitch family

TNY268GN
|  |  ||
|  |  |+-- N = Package variant
|  |  +-- G = SMD-8 (SOIC-8) package
|  +-- 268 = Part number (68 in generation 2)
+-- TNY = TinySwitch family

Product Families

TOPSwitch (TOP)

High-power offline switchers with integrated MOSFET.

Examples: TOP223Y, TOP249YN, TOP269KG

TinySwitch (TNY)

Low-power offline switchers for chargers and adapters.

Examples: TNY263G, TNY264GN, TNY268PN

LinkSwitch (LNK)

Cost-optimized low-power switchers.

Examples: LNK302GN, LNK304, LNK364DN

InnoSwitch (INN)

High-integration switchers with FluxLink isolated feedback.

Examples: INN2023K, INN3166C, INN3673CJ

HiperPFS (PFS)

Power Factor Correction controllers.

Examples: PFS714EG, PFS7624H

HiperLCS (LCS)

LLC resonant converter controllers.

Examples: LCS708HG

CAPZero (CAP)

X-capacitor discharge ICs for no-load power reduction.

Examples: CAP002DG, CAP004DG

SENZero (SEN)

Lossless current sensing ICs.

Examples: SEN013DG

Package Codes

Through-Hole Packages

Surface Mount Packages

Package Selection Guide

Low Power (< 10W):     G, GN, D, DN, P, PN
Medium Power (10-50W): Y, YN, K, KG
High Power (50-100W+): C, CJ, H, HG, E, EG

Supported Component Types

The handler supports these ComponentType values:

Note: Power Integrations parts are classified as VOLTAGE_REGULATOR since they perform AC-DC conversion and voltage regulation functions, even though they are technically more complex SMPS controllers.

Handler Implementation Notes

Package Code Extraction

// Extract suffix after the last digit
// TOP249YN → YN
// INN3673C → C

// Check longer suffixes FIRST (e.g., "KG" before "K", "YN" before "Y")
for (int len = Math.min(suffix.length(), 2); len >= 1; len--) {
    String candidate = suffix.substring(0, len);
    if (PACKAGE_CODES.containsKey(candidate)) {
        return PACKAGE_CODES.get(candidate);  // Returns decoded name, not code
    }
}

Key Point: The handler returns the decoded package name (e.g., "TO-220") not the raw code (e.g., "Y").

Series Extraction

// Extract 3-letter prefix
if (upperMpn.startsWith("TOP")) return "TOP";
if (upperMpn.startsWith("TNY")) return "TNY";
if (upperMpn.startsWith("LNK")) return "LNK";
if (upperMpn.startsWith("INN")) return "INN";
if (upperMpn.startsWith("PFS")) return "PFS";
if (upperMpn.startsWith("LCS")) return "LCS";
if (upperMpn.startsWith("CAP")) return "CAP";
if (upperMpn.startsWith("SEN")) return "SEN";

Product Family Helper

The handler provides getProductFamily(String mpn) to get the marketing name:

Base Part Number Extraction

// extractBasePartNumber() returns series + number without package suffix
// TOP249YN → TOP249
// INN3673CJ → INN3673
// TNY268GN → TNY268

Replacement Compatibility

isOfficialReplacement() checks:

1. Same product family (series prefix)
2. Same base part = same part, different package (always compatible)
3. Same sub-family (first 4 chars) with numeric difference <= 10

// Same base part, different package = compatible
TOP249Y and TOP249YN → true (same part)

// Same sub-family, close numbers = potentially compatible
TOP223Y and TOP224Y → true (within 10)
TOP223Y and TOP249Y → false (26 apart)

Pattern Matching Details

Registered Patterns

TOPSwitch: ^TOP[23][0-9]{2}[A-Z0-9]*$
TinySwitch: ^TNY[23][0-9]{2}[A-Z0-9]*$
LinkSwitch: ^LNK[346][0-9]{2}[A-Z0-9]*$
InnoSwitch: ^INN[234]0[0-9]{2}[A-Z0-9]*$ and ^INN3[0-9]{3}[A-Z0-9]*$
HiperPFS: ^PFS7[0-9]{2}[A-Z0-9]*$
HiperLCS: ^LCS7[0-9]{2}[A-Z0-9]*$
CAPZero: ^CAP0[0-9]{2}[A-Z0-9]*$
SENZero: ^SEN0[0-9]{2}[A-Z0-9]*$

Explicit matches() Implementation

The handler implements explicit pattern matching in matches() rather than relying solely on registry lookup. This provides:

• Better performance (direct regex)
• More predictable behavior
• Explicit fallback to registry

Example MPN Reference

Related Files

• Handler: manufacturers/PowerIntegrationsHandler.java
• Component types: ComponentType.IC, ComponentType.VOLTAGE_REGULATOR

Learnings & Quirks

• Integrated MOSFET: Many Power Integrations parts (TOPSwitch, TinySwitch, LinkSwitch) have an integrated high-voltage MOSFET, making them single-chip solutions
• FluxLink Technology: InnoSwitch family uses magnetic coupling for isolated feedback, eliminating optocouplers
• Package suffix ordering: Handler correctly checks 2-character suffixes (KG, YN, GN) before 1-character (K, Y, G)
• Not true voltage regulators: While classified as VOLTAGE_REGULATOR, these are SMPS controllers that perform AC-DC conversion, not linear regulators
• Generation numbering: The digit after the prefix (e.g., TOP249, TNY368) indicates product generation, not always strictly numeric progression
• InnoSwitch3 vs InnoSwitch: INN3xxx (4 digits after INN) is InnoSwitch3, while INN20xx/30xx/40xx (with leading 0) are earlier InnoSwitch generations
• Package heatsink variants: Suffix "G" after package letter (KG, HG, EG) typically indicates enhanced thermal performance with integrated heatsink
• CAPZero/SENZero special: These are auxiliary ICs (not SMPS) for power supply optimization - CAPZero discharges safety X-caps, SENZero provides lossless current sensing