LM4949TL/NOPB Texas Instruments Integrated Circuit (BGA) In Stock
Texas Instruments LM4949TL/NOPB is a stereo Class D audio subsystem with an OCL headphone amplifier, integrating volume control in a 25-ball DSBGA package. It operates over -40°C to 85°C and suits compact portable audio designs.
- Manufacturer
- Texas Instruments
- Package
- BGA
- Pin Count
- 25
- Lifecycle
- OBSOLETE
- Datasheet
- LM4949TL/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.1300(MOQ 500)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4949TL/NOPB?
- Stereo Class D speaker amplifier with integrated OCL headphone output eliminates external DC-blocking capacitors
- Built-in volume control circuit reduces external component count in portable audio subsystem designs
- Ultra-compact 25-ball DSBGA package (5x5 ball array) enables minimal PCB footprint in mobile audio devices
- Operating temperature range of -40°C to 85°C supports consumer and light industrial audio applications
What is LM4949TL/NOPB used for?
The LM4949TL/NOPB is designed for portable consumer electronics such as smartphones, tablets, and media players requiring a single-chip stereo Class D amplifier with a headphone output. Its integrated volume control, OCL headphone amplifier, and tiny 25-ball DSBGA footprint make it ideal for space-constrained audio subsystems in wearable devices, portable speakers, and handheld gaming consoles.
What are the specifications of LM4949TL/NOPB?
| YTEOL | 0 |
| Consumer IC Type | VOLUME CONTROL CIRCUIT |
| JESD-30 Code | S-PBGA-B25 |
| JESD-609 Code | e1 |
| Number of Functions | 2 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | BGA25,5X5,20 |
| Package Shape | SQUARE |
| Package Style | GRID ARRAY, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 10.9mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | TIN SILVER COPPER |
| Terminal Form | BALL |
| Terminal Pitch | 0.5mm |
| Terminal Position | BOTTOM |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | BGA |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Where can I find the LM4949TL/NOPB datasheet?
LM4949TL/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4949TL/NOPB?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What temperature range does the LM4949TL/NOPB support for reliable audio operation?
The LM4949TL/NOPB is rated for an operating temperature range of -40°C to 85°C, making it suitable for portable consumer electronics exposed to cold outdoor environments as well as warm enclosures. This range covers the majority of consumer and light industrial audio application requirements without derating.
How does the OCL headphone output in LM4949TL/NOPB reduce the bill of materials in a portable audio design?
The output-capacitor-less (OCL) headphone amplifier eliminates the need for large electrolytic DC-blocking capacitors on each audio output, which would otherwise occupy significant PCB area and add cost. In a 25-ball DSBGA system-on-chip, this OCL topology directly drives 32-ohm headphones and reduces external component count by at least 2 capacitors per stereo channel.
What is the package size and ball count of the LM4949TL/NOPB and how does it benefit compact device PCB layouts?
The LM4949TL/NOPB uses a 25-ball DSBGA package arranged in a 5x5 grid with a very small body footprint below 4 mm per side, enabling ultra-compact placement in smartphone motherboards and wearable audio PCBs where total board area is limited. The fine-pitch grid array minimizes routing distance between audio IC and speaker connector pads.
For a smartphone audio path, why would a designer choose LM4949TL/NOPB over a discrete Class AB headphone amplifier?
A Class D amplifier like the LM4949TL/NOPB achieves higher efficiency than Class AB designs, typically above 80% versus 50% for Class AB at moderate output power, which extends battery life in portable devices. Combined with integrated volume control and the 25-ball DSBGA package operating from -40°C to 85°C, the LM4949TL/NOPB minimizes both PCB space and power consumption in compact audio subsystems.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
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|---|---|---|
| 500+ | $1.2700 | $635.00 |
| 1000+ | $1.2000 | $1200.00 |
| 10000+ | $1.1300 | $11300.00 |
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