Asahi Kasei Microdevices/AKM AK4602VQ

Overview

AK4602VQ from Asahi Kasei Microdevices is a CMOS-based audio codec IC in LQFP64-10×10-0.5 package, rated for operation from −40°C to +143°C, qualified per JEDEC J-STD-020 (MSL2), and featuring ±2000V HBM ESD protection on all pins including AVDD, LVDD, VDD33, TVDD1/2, AVDRV, AVSS, and DVSS.

For engineers reviewing the AK4602VQ datasheet, AK4602VQ pinout, AK4602VQ application, or AK4602VQ equivalent, this page delivers verified reliability data, soldering profile compliance, thermal performance estimates, and packaging specifications directly tied to the exact orderable part AK4602VQ - supporting audio subsystem design, BOM validation, and high-reliability industrial deployment.

Technical Context

The AK4602VQ is fabricated using CMOS wafer process and housed in a Pb-free Sn100% plated LQFP64-10×10-0.5 package with epoxy mold resin (UL-94 V-0) and Ag paste die attach. It undergoes triple reflow qualification (260°C max) and passes 1000-hour high-temperature operating life testing at 143°C with zero failures across 1200 samples from 15 lots.

Its reliability framework includes full JEDEC J-STD-033-compliant emboss taping (1000 pcs/reel), MSL2 floor life management, and validated solderability (zero-cross time ≤3 s at 230°C), whisker resistance (≤40 μm after 4000 h at 55°C/85% RH), and autoclave survival (121°C/100% RH/200 h).

Key Specifications

Pinout & Package

LQFP64-10×10-0.5 package: 64-lead quad flat pack with exposed pad option not specified; body dimensions 10.0 mm × 10.0 mm, thickness ≤1.6 mm, lead pitch 0.5 mm, lead count 64, RoHS-compliant Sn100% plating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar audio codec applications.

Compared with AK4602VQ, AK4622VQ delivers higher fidelity at the cost of tighter clock design constraints, while AK4613VQ trades audio channel flexibility for lower quiescent power - both retain identical mechanical fit and thermal reliability profiles.

Availability

AK4602VQ is available at Aetrix Electronics and suitable for professional audio interfaces, industrial HMIs, and medical diagnostic equipment requiring stable component supply, long-term lifecycle assurance, and documented MSL2 handling compliance.

Supply support for AK4602VQ includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Asahi Kasei Microdevices is a Japanese semiconductor company specializing in analog, mixed-signal, and sensor ICs, with core expertise in audio, motor control, and power management technologies.

The AK46xx series is designed as a family of high-reliability audio codecs targeting industrial, medical, and automotive applications where extended temperature operation, ESD robustness, and long-term supply stability are mandatory.

FAQ

What is the maximum reflow temperature and duration allowed for AK4602VQ?

The AK4602VQ is qualified for peak package body temperature up to 260°C for a maximum duration of 30 seconds, per JEDEC J-STD-020. Its reflow profile must maintain liquidus ≥217°C for 60–150 seconds and limit ramp-down to 6°C/s. Exceeding these limits risks internal delamination or wire bond failure. Always verify actual board-level thermal profiles using thermocouples attached to the AK4602VQ body during process validation.

Does AK4602VQ require baking before reflow if stored beyond its floor life?

Yes - if the AK4602VQ has been exposed to ambient conditions exceeding 1 year at <60% RH after unpacking, baking is required prior to reflow. For taping-packed units, bake at 40°C/<5% RH for 13 days; for heat-proof packed units, bake at 125°C for 8 hours (up to three times). Baking resets floor life only when followed by storage in a dry cabinet (<10% RH) for 5× exposure time.

What does the "VQ" suffix indicate in AK4602VQ?

The "VQ" suffix in AK4602VQ denotes Asahi Kasei's LQFP64-10×10-0.5 package variant with Pb-free Sn100% plating, laser marking, and qualification to MSL2 per JEDEC J-STD-020. It distinguishes this version from older "VT" (TQFP) or "VS" (smaller QFP) variants and confirms compliance with current RoHS and JEDEC moisture sensitivity standards.

Can AK4602VQ be used in automotive under-hood applications?

AK4602VQ is rated for 143°C ambient operation and passes 1000-hour HTOL testing at that temperature - exceeding AEC-Q100 Grade 2 (105°C) requirements. However, it is not AEC-Q100 certified. For automotive under-hood use, AK4602VQ requires full system-level qualification including vibration, EMC, and transient testing; consult Asahi Kasei's automotive support team before deployment.

What is the failure rate estimate for AK4602VQ at 45°C ambient?

Per Asahi Kasei's Failure Rate and MTTF Estimation report, AK4602VQ has a calculated failure rate of 12.0 FIT at 45°C ambient temperature, corresponding to an MTTF of 17 years. This value derives from Arrhenius modeling using Ea = 0.4 eV and assumes negligible self-heating (Tj ≈ Ta) due to low CMOS power dissipation - validated by zero failures in 1000-hour HTOL testing at 125°C.