STMicroelectronics STA516B13TR

Overview

STA516B13TR from STMicroelectronics is a monolithic quad half-bridge power stage in Multipower BCD technology, designed as the output stage for stereo all-digital high-efficiency audio amplifiers. It delivers 200 W + 200 W into 6 Ω loads (THD = 10%, VCC = 51 V) or 400 W into 3 Ω in single BTL mode (VCC = 52 V), with 200 mΩ RdsON complementary DMOS outputs, thermal warning (TH_WARN), and undervoltage protection - deployed in home theatre systems and active speakers.

For engineers reviewing the STA516B13TR datasheet, STA516B13TR pinout, STA516B13TR application, or STA516B13TR equivalent, this device requires attention to CONFIG pin configuration for dual/single/half-bridge reconfiguration, VL-referenced logic thresholds, thermal warning timing (130 °C activation), and PowerSO-36 (EPU) thermal pad layout for 1–2.5 °C/W junction-to-case dissipation.

Technical Context

The STA516B13TR implements four independent half-bridge stages with CMOS-compatible inputs referenced to VL voltage (2.7–5.0 V), supporting ternary, phase-shift, or binary PWM drive schemes. Its logic interface decodes INxA/INxB pairs per channel to control high-speed MOSFETs with <100 ns turn-on/off delay and <25 ns rise/fall times under resistive load.

Protection architecture includes open-drain FAULT (active-low short-circuit/thermal fault indicator) and TH_WARN (active-low at Tj >130 °C), plus undervoltage lockout (7 V threshold) and overcurrent limiting (7.5–10 A). Configuration via CONFIG pin enables parallel operation (dual bridges merged) or half-current binary mode.

Key Specifications

Pinout & Package

STA516B13TR is housed in a PowerSO-36 package with exposed pad up (EPU), optimized for thermal dissipation (1–2.5 °C/W junction-to-case) and high-current PCB routing. The exposed thermal pad must be soldered to a large copper area for reliable 400 W operation.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar quad half-bridge audio output applications.

Compared with TAS5630PHDR and IRS2092SPBF, STA516B13TR integrates power switches, protection, and reconfigurable topology in one PowerSO-36 package - reducing component count by 12+ devices and eliminating external current-sense resistors or thermal ICs required by alternatives.

Availability

STA516B13TR is available at Aetrix Electronics and suitable for home theatre systems, active studio monitors, docking station audio hubs, and multi-room distributed audio requiring stable component supply across industrial temperature range (0–90 °C).

Supply support for STA516B13TR 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in power management, analog, MEMS, and microcontrollers for industrial, automotive, and consumer markets.

STA516B13TR belongs to ST's DDX® Class-D audio power stage product line, engineered specifically for high-fidelity, high-efficiency digital audio amplification with integrated protection and flexible bridge configuration.

FAQ

What is the function of the CONFIG pin on STA516B13TR?

The CONFIG pin selects operational mode: logic-low enables standard quad half-bridge operation; logic-high (tied to VDD) configures parallel bridging (OUT1A=OUT1B, OUT2A=OUT2B) for double-current capability in single-BTL or dual-BTL setups. This reconfiguration does not require external components and is validated per AN1994.

How does the VL pin affect input logic thresholds?

VL sets the reference voltage for all digital inputs (IN1A–IN2B, CONFIG, PWRDN, TRISTATE). VIN-High = VL/2 + 300 mV and VIN-Low = VL/2 − 300 mV ensure noise margins scale with VL supply - allowing direct interfacing with DDX® modulators (e.g., STA321) operating at 3.3 V or 5.0 V without level shifters.

Can STA516B13TR operate safely at 58 V VCC?

Yes - 58 V is within the recommended operating condition (Table 5), and the absolute maximum rating is 65 V. At 58 V, the device delivers up to 400 W into 3 Ω in single-BTL mode (THD = 10%), provided thermal design maintains Tj ≤150 °C using the exposed pad and proper PCB copper area per PowerSO-36 EPU mechanical data.

What is the purpose of the TH_WARN and FAULT pins?

TH_WARN is an open-drain output that pulls low when junction temperature exceeds 130 °C, enabling early thermal derating before shutdown. FAULT pulls low on overcurrent, thermal shutdown (>150 °C), or undervoltage (<7 V); both require external pull-up resistors and support either manual reset (toggle TRISTATE) or auto-recovery (tie FAULT to TRISTATE with RC network).