STA533WF13TR - 18V 3A Quad Half-Bridge | STMicroelectronics
MPN: STA533WF13TR ✓ نشطSTA533WF13TR نظرة عامة
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.
بدائل مباشرة لـ STA533WF13TR — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
STA533WF13
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
STA533WF13LS
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
STA533WF
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
STA533WF13TR الحدود القصوى والخصائص الكهربائية
| Product Type | Class AB audio power amplifier IC |
| تكوين الخرج | 4 half-bridge outputs |
| Supply Voltage Range | 5 V to 18 V |
| أقصى تيار خرج | 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 |
| العلبة | 36-FSOP (0.295 inch, 7.50 mm width), exposed pad |
| نوع التركيب | Surface mount |
| Packaging | Tape and reel |
| درجة حرارة التشغيل | 0 °C to 70 °C ambient |
| Thermal Protection | Yes |
| حالة RoHS | Supported |
| Reel Quantity | 1600 pieces |
| Distortion | Low input/output pulse-width distortion |
دليل تكوين أطراف STA533WF13TR 36-fsop (0.295 inch, 7.50 mm width), exposed pad
تكوين الأطراف لـ STA533WF13TR (حزمة 36-fsop (0.295 inch, 7.50 mm width), exposed pad). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ STA533WF13TR.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
STA533WF13TR مناسب لـ 6 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ STA533WF13TR — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- Four half-bridge outputs in one power-amplifier IC (مقابلSTA533WF13)
- Configurable bridge organization (مقابلSTA533WF13LS)
- Low-resistance integrated DMOS output (مقابلSTA533WF)
ملاحظات التصميم
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.
معلومات الامتثال
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.
