LM4890M/NOPBIn StockTexas Instruments
LM4890M/NOPB is a 1W mono audio power amplifier IC from Texas Instruments, designed for battery-powered portable applications. It delivers 1W output into an 8Ω load from a 5V supply, features shutdown mode for power saving, and operates in BTL (Bridge Tied Load) configuration. Ideal for mobile phones, PDAs, and portable audio devices.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM4890M/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.7236(MOQ 8)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1W output power into 8Ω at 5V supply in BTL configuration
- Ultra-low shutdown current (<1μA) for extended battery life
- No output coupling capacitors required, reducing BOM cost
- Wide supply voltage range: 2.7V to 5.5V
- Thermal and short-circuit protection for robust operation
- 8-pin SOIC (M) package for compact PCB footprint
Applications
The LM4890M/NOPB is widely used in battery-powered portable consumer electronics such as mobile phones, PDAs, portable media players, and handheld gaming devices. Its BTL output configuration and low shutdown current make it an excellent fit for single-supply audio amplification in space-constrained designs. It is also suitable for laptop speaker amplification and other low-power audio systems requiring compact, efficient amplification.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Bandwidth-Nom | 20kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| Harmonic Distortion | 2% |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e3 |
| Noise Figure-Nom | 93dB |
| Number of Channels | 1 |
| Number of Functions | 1 |
| Output Power-Nom | 1.2W |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 10mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.2V |
| Surface Mount | YES |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM4890M/NOPB:
Frequently Asked Questions
What is the output power of the LM4890M/NOPB?
The LM4890M/NOPB delivers up to 1W of continuous output power into an 8Ω load when operating from a 5V single supply in Bridge Tied Load (BTL) configuration. This makes it well-suited for driving small speakers in portable devices.
What is the operating supply voltage range for the LM4890M/NOPB?
The LM4890M/NOPB operates over a supply voltage range of 2.7V to 5.5V, making it compatible with both 3.3V and 5V systems commonly found in portable battery-powered electronics such as mobile phones and PDAs.
Does the LM4890M/NOPB require output coupling capacitors?
No, the LM4890M/NOPB does not require output coupling capacitors due to its BTL (Bridge Tied Load) output stage. This reduces bill-of-materials cost and board space, which is particularly advantageous in compact portable device designs.
What package does the LM4890M/NOPB use?
The LM4890M/NOPB comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, denoted by the 'M' suffix. This surface-mount package is compact and widely supported by standard PCB assembly processes.
What are typical applications for the LM4890M/NOPB?
Typical applications include mobile phones, PDAs, portable media players, handheld gaming consoles, laptop speakers, and any battery-operated device that requires a compact, low-power mono audio amplifier. Its low quiescent current and shutdown feature are especially valuable in power-sensitive designs.
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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.
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