LM4938MH Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM4938MH is a stereo 2W Class AB audio power amplifier IC with integrated volume control, featuring 73 dB channel separation and 2-channel output in a 28-HTSSOP package. Available in stock worldwide.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 28
- Lifecycle
- OBSOLETE
- Datasheet
- LM4938MH Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Stereo 2W Class AB audio power amplifier with integrated volume control circuit
- 73 dB channel separation for high-fidelity stereo audio performance
- Dual-channel output with dedicated stereo headphone support
- Compact 28-HTSSOP package for space-constrained audio designs
- Single-supply operation suitable for portable consumer electronics
Applications
The LM4938MH is widely used in portable consumer electronics such as smartphones, tablets, and MP3 players where compact, efficient stereo audio amplification is required. Its integrated volume control and headphone output make it ideal for personal audio devices and multimedia docking stations. It is also suitable for desktop PC speakers and battery-powered audio systems demanding low distortion and good channel separation.
Specifications
| Pbfree Code | No |
| YTEOL | 0 |
| Channel Separation | 73dB |
| Consumer IC Type | VOLUME CONTROL CIRCUIT |
| JESD-30 Code | R-PDSO-G28 |
| JESD-609 Code | e0 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TSSOP28,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 30mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Surface Mount | YES |
| Temperature Grade | OTHER |
| Terminal Finish | TIN LEAD |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM4938MH:
Frequently Asked Questions
What is the output power of the LM4938MH?
The LM4938MH delivers up to 2W per channel in Class AB operation, providing sufficient power for compact stereo speaker systems and headphone-driven applications in portable consumer electronics.
What package does the LM4938MH use?
The LM4938MH is housed in a 28-pin HTSSOP (Heat-sink Thin Shrink Small Outline Package) with a 0.25 mm pitch, making it well-suited for compact PCB layouts in space-constrained audio device designs.
What is the channel separation specification of the LM4938MH?
The LM4938MH achieves 73 dB of channel separation between its two stereo channels, ensuring minimal crosstalk and delivering clear, high-fidelity audio reproduction for both speaker and headphone outputs.
What are the typical applications for the LM4938MH?
The LM4938MH is commonly used in portable audio players, smartphones, multimedia docking stations, desktop PC speakers, and battery-powered consumer devices that require compact stereo amplification with integrated volume control.
Does the LM4938MH support headphone output?
Yes, the LM4938MH includes dedicated stereo headphone support alongside its speaker amplifier outputs, making it versatile for products that need to drive both speakers and headphones from a single audio IC.
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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.
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