Diodes Incorporated PAM8013AKR

Overview

PAM8013AKR from Diodes Incorporated is a 3W mono Class-D audio amplifier with filter-less BTL output, differential input architecture, 90% peak efficiency at 1W into 8Ω, -68dB PSRR at 217Hz, and shutdown current <1μA. It operates from 2.8V to 5.5V and delivers 3W @ 10% THD+N into 4Ω at 5V supply-designed for space-constrained portable audio systems including smartphones and MP3 players.

For engineers reviewing the PAM8013AKR datasheet, PAM8013AKR pinout, PAM8013AKR application, or PAM8013AKR equivalent, this page provides verified functional roles, validated BTL output configuration, confirmed U-FLGA1515-9 package mapping, real-world EMI performance (-20dB vs FCC Class-B @ 300MHz), and thermal/short-circuit protection behavior under load.

Technical Context

The PAM8013AKR implements a PWM-based Class-D architecture with integrated gate drivers for complementary high-side PMOS (R_DS(ON) = 325mΩ) and low-side NMOS (R_DS(ON) = 200mΩ) output stages. Its differential input rejects common-mode noise and RF rectification, while internal UVLO (2.2V turn-on, 2.0V shutdown) ensures stable power sequencing.

It features non-latched overtemperature protection (trip at 150°C ±15°C, recovery at T_J ≤110°C), short-circuit protection that disables outputs during fault, and pop/click suppression via controlled reference ramp-up to V_DD/2 before unmute-enabling clean startup without transients in battery-powered devices.

Key Specifications

Pinout & Package

The PAM8013AKR is housed in the U-FLGA1515-9 wafer-level chip-scale package (1.5mm × 1.5mm, 0.6mm height), optimized for minimal PCB footprint and thermal resistance in thin-profile mobile devices.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar mono Class-D audio amplifier applications.

Compared with TPA2013D1RTJR and MAX9718ETA+, the PAM8013AKR uniquely delivers 3W filter-less operation in a 1.5mm × 1.5mm footprint with best-in-class PSRR and EMI margin - making it optimal for space- and noise-sensitive portable audio where external filtering is prohibited.

Availability

PAM8013AKR is available at Aetrix Electronics and suitable for smartphones, portable media players, and GPS navigation devices requiring stable component supply, consistent wafer-lot traceability, and long-term industrial lifecycle support.

Supply support for PAM8013AKR 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

Diodes Incorporated is a global manufacturer of discrete semiconductors and analog ICs, specializing in high-efficiency power management, signal integrity, and precision analog solutions for consumer, industrial, and automotive markets.

The PAM8013AKR belongs to Diodes' Class-D audio amplifier product line, engineered specifically for ultra-compact, battery-efficient portable audio applications where EMI, thermal density, and PCB area are primary constraints.

FAQ

What is the minimum recommended input coupling capacitor value for PAM8013AKR?

The datasheet specifies a 10nF ceramic capacitor for flat bass response down to 150Hz with 150kΩ input impedance. This value ensures low-frequency extension while minimizing DC offset voltage caused by leakage current-critical for high-gain configurations where headroom is limited. Tantalum capacitors are discouraged due to higher leakage and polarity sensitivity.

Does PAM8013AKR require external ferrite beads for EMI compliance?

No-its -20dB margin against FCC Class-B at 300MHz allows most designs to pass radiated emissions without ferrite beads. However, if layout introduces long traces (>3cm) between OUTP/OUTN and speaker terminals, a 600Ω@100MHz ferrite bead per output is recommended to suppress residual 400kHz switching harmonics above 300MHz.

How does the shutdown pin (C2) behave during power sequencing?

The SD pin is active-low with VIH ≥1.4V and VIL ≤1.0V at VDD=5V. When pulled to GND, it forces the device into ultra-low-current state (<1μA). During power-up, the internal UVLO holds the amplifier disabled until VDD exceeds 2.2V, preventing erratic behavior-so SD may remain floating or tied high during initial ramp without risk.

Can PAM8013AKR drive an 8Ω speaker at full rated power?

Yes-it delivers 1.75W @ 10% THD+N into 8Ω at 5V supply, and 1.40W @ 1% THD+N. While its 3W rating is specified for 4Ω loads, the 8Ω capability supports higher-voltage, lower-current operation ideal for piezoelectric speakers or low-distortion voice prompts where thermal derating is less critical than fidelity.