LM4889MA/NOPBIn StockTexas Instruments
LM4889MA/NOPB is a 1W mono audio power amplifier with click/pop suppression and 2.2-5.5V supply, SOIC-8. From $0.61 at 100K+pcs. In stock, ships globally.
- Manufacturer
- Texas Instruments
- Package
- SOIC-8
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- LM4889MA/NOPB Datasheet PDF
- Category
- amplifiers
- Price
- From $0.6063(MOQ 1)
- 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 speaker at 5V supply
- Built-in click and pop suppression circuitry
- Shutdown mode with <0.1µA current consumption
- Low THD+N: 0.1% at 1kHz for clear audio
- Bridge-tied load (BTL) output doubles voltage swing
Applications
Designed for portable audio devices, Bluetooth speakers, handheld gaming, alarm systems, and intercom speakers. Used wherever compact mono audio output is needed from a single-supply, battery-powered system.
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 | 8mA |
| 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 |
| ## LM4889MA/NOPB Alternates Showing results | Image |
| Package | SOIC-8 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM4889MA/NOPB:
Frequently Asked Questions
What speaker impedance does LM4889 support?
The LM4889 supports 4Ω and 8Ω speakers in bridge-tied load (BTL) configuration. At 5V supply with 8Ω speaker, it delivers 1W. With 4Ω speaker, output power increases to approximately 1.5W. Minimum recommended speaker impedance is 4Ω.
How does the click/pop suppression work?
The LM4889 includes an internal charge pump circuit that slowly biases the output to the mid-supply voltage during power-up and shutdown. This gradual transition eliminates the audible click or pop that occurs with abrupt DC offset changes.
What is the shutdown current of LM4889?
In shutdown mode (SD pin low), the LM4889 draws less than 0.1µA, effectively zero battery drain. This makes it ideal for always-present audio paths in battery devices where the amplifier is only active during playback.
What gain is the LM4889 configured for?
The LM4889 gain is set by external resistors: AV = 2 × (Rf/Ri). Default recommended configuration provides 6dB gain (AV=2). Gain can be adjusted from 0dB to 20dB by changing the feedback/input resistor ratio.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.8620 | $1.86 |
| 9+ | $0.7325 | $6.59 |
| 10000+ | $0.7236 | $7236.00 |
| 100000+ | $0.6063 | $60630.00 |
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