LM3886T/NOPB
| Parameters | |
|---|---|
| Series | Overture™ |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-220-11 (Formed Leads) |
| Mfr | Texas Instruments |
| Mounting Type | Through Hole |
| Operating Temperature | -20°C ~ 85°C (TA) |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Supplier Device Package | TO-220-11 |
| Voltage - Supply | 20V ~ 84V, ±10V ~ 42V |
| Max Output Power x Channels @ Load | 68W x 1 @ 4Ohm |
| Features | Mute, Short-Circuit and Thermal Protection |
| Package | Tube |
| Product Status | Active |
| Base Product Number | LM3886 |
| REACH Status | REACH Unaffected |
| Standard Package | 20 |
| ECCN | EAR99 |
| HTSUS | 8542.33.0001 |
LM3886T/NOPB Amplifier IC 1-Channel (Mono) Class AB TO-220-11
The LM3886T/NOPB is a high-performance, mono (single-channel) audio power amplifier from Texas Instruments, delivered in a robust TO-220-11 through-hole package. As part of the Overture™ series, it is renowned for delivering high-fidelity audio output with minimal external components. Capable of providing 68W of continuous average power into a 4Ω load with less than 0.03% total harmonic distortion plus noise (THD+N), it is a classic choice for high-quality audio amplification designs.
Key Features and Highlights:
High Output Power: Delivers 68W of continuous average output power into a 4Ω load and 38W into an 8Ω load with typical supply voltages, providing ample power for demanding speaker systems.
Integrated Protection Circuitry: Incorporates an advanced SPiKe™ (Self Peak Instantaneous Temperature) protection system that safeguards against output over-current, under-voltage, over-temperature, and provides instantaneous peak temperature limiting for reliable operation.
Wide Supply Voltage Range: Operates from a single supply ranging from 20V to 84V or split supplies from ±10V to ±42V, offering flexibility for various power supply designs and output power requirements.
Mute Function: Includes a user-controllable mute function that allows the amplifier to be muted, significantly reducing the quiescent current and enabling silent power-on/off sequences.
FAQ
Q: Can multiple LM3886 chips be used in a bridge-tied load (BTL) configuration for more power?
A: Yes, two LM3886 amplifiers can be configured in a BTL (bridge-tied load) arrangement. This configuration effectively doubles the voltage swing across the load, potentially delivering over 100W of power into an 8Ω speaker, but requires careful attention to input signal phasing and power supply design.
Compatible Alternative Part List
1. TDA7293: A popular 100W DMOS audio amplifier from STMicroelectronics with similar high-fidelity performance and integrated mute/standby functions, often used in high-power audio applications.
2. TDA2050: A lower-power (up to 32W into 4Ω) but highly reliable audio amplifier from STMicroelectronics, suitable for applications where the full power of the LM3886 is not required.
3. TPA3255: A modern, high-efficiency Class-D audio amplifier from Texas Instruments offering significantly higher output power and efficiency in a smaller form factor, representing a contemporary alternative for new designs.
