STA533WF13TR - 18V 3A Quad Half-Bridge | STMicroelectronics
部品番号: STA533WF13TR ✓ 生産中STA533WF13TR 概要
A power half-bridge amplifier is an audio-output driver that uses two switchable output stages to develop voltage and current across a speaker or other load. The quad-half-bridge arrangement belongs to the broader Class AB amplifier hierarchy and can support two full bridges or one single bridge configured for higher current. The CONFIG pin provides the configuration control needed when operating the device as a single bridge.
The device combines low output-stage resistance with low input/output pulse-width distortion. Its CMOS-compatible inputs simplify control from digital audio processors, while the 18 V maximum supply supports conventional Class AB audio power stages. Thermal protection and an exposed thermal pad support practical heat dissipation in surface-mount audio designs.
Multipower BCD technology combines bipolar, CMOS, and DMOS process elements within the monolithic power-amplifier circuit. The complementary DMOS output stage is specified at 200 mΩ, reducing conduction loss compared with a higher-resistance output implementation. The four outputs can remain organized as four half-bridges or be reconfigured through CONFIG for single-bridge operation with double-current capability.
Typical uses include compact stereo audio systems, multimedia speakers, home-audio receivers, automotive audio electronics, and Class AB speaker-driving modules. The device is particularly relevant when a design requires multiple independently controlled outputs or a single high-current output, provided the board layout and thermal design follow the manufacturer guidance.
For reliable operation, connect the exposed pad to a suitable ground plane and use very short, wide power paths to minimize voltage loss and thermal gradients. The CONFIG connection must match the intended dual-bridge or single-bridge topology, while input and control traces should be kept away from switching output nodes to reduce coupling into the audio path.
This page consolidates the key electrical characteristics, package information, application guidance, and strictly package-compatible alternatives for engineers evaluating the STA533WF13TR. Use the manufacturer datasheet for the complete pin-description table, thermal limits, application circuit, and power-loss calculations before releasing a PCB design.
ドロップイン代替品: STA533WF13TR — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
STA533WF13
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STA533WF13LS
✅ ドロップイン📋 参考代替品（カタログ未掲載）
STA533WF
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
STA533WF13TR 最大定格＆電気的特性
| Product Type | Class AB audio power amplifier IC |
| 出力構成 | 4 half-bridge outputs |
| Supply Voltage Range | 5 V to 18 V |
| 最大出力電流 | 3 A |
| Output Power | 20 W per 2 channels at 8 ohms |
| Output Stage | 200 mΩ complementary DMOS |
| Process Technology | Multipower BCD |
| Input Logic Compatibility | CMOS-compatible |
| パッケージ | 36-FSOP (0.295 inch, 7.50 mm width), exposed pad |
| 実装タイプ | Surface mount |
| Packaging | Tape and reel |
| 動作温度 | 0 °C to 70 °C ambient |
| Thermal Protection | Yes |
| RoHS ステータス | Supported |
| Reel Quantity | 1600 pieces |
| Distortion | Low input/output pulse-width distortion |
STA533WF13TR 36-fsop (0.295 inch, 7.50 mm width), exposed pad ピン配置ガイド
STA533WF13TR (36-fsop (0.295 inch, 7.50 mm width), exposed pad パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: STA533WF13TR.
詳細は データシート をご参照ください。
主な用途
STA533WF13TR の用途: 6 件s: Stereo Multimedia Speaker Amplifier, Compact Home-Audio Receiver, Automotive Audio Output Stage, Powered Speaker Module, Multichannel Audio Amplifier, Audio Instrumentation and Measurement.
Stereo Multimedia Speaker Amplifier
The STA533WF13TR fits a stereo Class AB speaker stage because its four half-bridge outputs can be arranged as two full bridges, each handling one speaker channel. The 5 V to 18 V supply range and 20 W per 2 channels at 8 ohms align with conventional powered-speaker and multimedia applications. Place the output devices close to the speaker connectors, use short load-current paths, and provide the exposed pad with substantial ground-plane copper to remove heat generated by the 200 mΩ DMOS output stage.
おすすめ
Compact Home-Audio Receiver
The STA533WF13TR can drive speakers in a compact home-audio receiver when low-noise Class AB operation and integrated bridge control are priorities. Its CMOS-compatible inputs allow direct interfacing with a digital audio processor, while the four half-bridge outputs offer flexible channel organization. The designer must account for the difference between quiescent Class AB dissipation and peak output power, and should verify the 0 °C to 70 °C ambient operating range against the intended enclosure temperature.
おすすめ
Automotive Audio Output Stage
The STA533WF13TR can be evaluated for automotive audio modules that require a compact, protected Class AB power stage. Its 5 V to 18 V operating range, thermal protection, and four independently controlled half-bridge outputs suit multi-channel vehicle speaker architectures. Automotive deployment also requires project-specific qualification review because the listed operating-temperature specification is 0 °C to 70 °C; the exposed-pad thermal design must address the enclosure's worst-case ambient temperature and vibration environment.
おすすめ
Powered Speaker Module
The STA533WF13TR is suitable for a powered-speaker module that needs two bridge outputs and centralized audio-power control. The device's 3 A output-current capability and 200 mΩ complementary DMOS stage reduce the external output-component count compared with a discrete Class AB design. For reliable results, route speaker and supply currents with copper planes rather than narrow traces, decouple each VDD connection locally, and verify that the exposed pad has a continuous thermal path to both ground and chassis heat-spreading structure.
おすすめ
Multichannel Audio Amplifier
Four half-bridge outputs make the STA533WF13TR useful for multichannel audio products that need more than a conventional dual-channel amplifier. The CONFIG pin provides a path to reconfigure the device as a single bridge with double-current capability, allowing the same IC family to address different load arrangements. Each active output should receive symmetrical filtering and protection appropriate to the speaker network, while the shared exposed pad and ground system must be sized for the combined Class AB dissipation across all active channels.
おすすめ
Audio Instrumentation and Measurement
The STA533WF13TR can serve as the output driver in audio test and measurement equipment that requires controlled Class AB amplification. Its 200 mΩ output stage and low pulse-width distortion characteristics are relevant when driving resistive test loads or carefully filtered speaker simulators. Because the device is an audio power amplifier rather than a precision signal amplifier, the input signal must remain within the device's logic and modulation limits, and output distortion should be measured under the actual load and thermal conditions.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: STA533WF13TR — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | STA533WF13 | STA533WF13LS | STA533WF |
|---|---|---|---|---|
| Package | 36-FSOP exposed pad | 36-FSOP exposed pad | 36-FSOP exposed pad | 36-FSOP exposed pad |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Type | Class AB audio power amplifier IC | Class AB audio power amplifier IC | Class AB audio power amplifier IC | Class AB audio power amplifier IC |
| Output Configuration | 4 half-bridge outputs | 4 half-bridge outputs | 4 half-bridge outputs | 4 half-bridge outputs |
| Supply Voltage Range | 5 V to 18 V | 5 V to 18 V | 5 V to 18 V | 5 V to 18 V |
| Maximum Output Current | 3 A | 3 A | 3 A | 3 A |
| Output Power | 20 W per 2 channels at 8 ohms | 20 W per 2 channels at 8 ohms | 20 W per 2 channels at 8 ohms | 20 W per 2 channels at 8 ohms |
| Output Stage Resistance | 200 mΩ complementary DMOS | 200 mΩ complementary DMOS | 200 mΩ complementary DMOS | 200 mΩ complementary DMOS |
| Process Technology | Multipower BCD | Multipower BCD | Multipower BCD | Multipower BCD |
| Input Logic Compatibility | CMOS-compatible | CMOS-compatible | CMOS-compatible | CMOS-compatible |
| Thermal Protection | Yes | Yes | Yes | Yes |
主な差別化要因
- Four half-bridge outputs in one power-amplifier IC （vs STA533WF13)
- Configurable bridge organization （vs STA533WF13LS)
- Low-resistance integrated DMOS output （vs STA533WF)
設計ノート
Treat the exposed pad as the primary thermal path for the STA533WF13TR's Class AB dissipation. Place the package over a continuous ground plane with no thermal relief beneath the pad, use multiple short vias where the PCB design permits, and maintain copper around the power and output pins. Estimated: at 18 V supply, 8-ohm load, and 20 W per 2 channels, each conducting channel dissipates approximately 4 W before accounting for losses; confirm the final junction margin against the manufacturer thermal model.
Route VDD and speaker outputs as short, wide paths because the device can reach 3 A. Place local VDD decoupling close to the supply pins and return its ground directly to the power ground region. Keep output-current loops compact so their magnetic field is less likely to couple into the CMOS-compatible input or CONFIG traces. The exposed pad and ground structure should be designed together because separating them can increase junction temperature.
Assign CONFIG only after selecting the intended topology: the default organization supports multiple half-bridge outputs, while connecting CONFIG to VDD enables the single-bridge arrangement described by the manufacturer. Route this control trace away from output nodes and provide a defined logic level during startup. Confirm the final mode against the manufacturer pin table and application schematic to avoid enabling an unintended bridge configuration.
Do not select a lower-power load without recalculating heat dissipation and output-current margin. The STA533WF13TR's 200 mΩ complementary DMOS stage improves efficiency compared with a higher-resistance output, but Class AB amplifiers still dissipate substantial power at low output levels. Also verify the complete order-code suffix, operating-temperature range, and reel configuration before substitution or assembly because family similarity does not eliminate thermal or qualification differences.
コンプライアンス情報
RoHS support is listed for the STA533WF13TR. AEC-Q100 status, REACH status, lead-free status, halogen-free status, and conflict-minerals status are not identified.
