LM4782TA/NOPB Texas Instruments Integrated Circuit (Transistor Outline, Vertical) In Stock
LM4782TA/NOPB is a triple-channel audio power amplifier delivering 25W per channel at 20V to 64V supply. It features 20 kHz bandwidth and 3 independent amplifier stages in a TO-220 package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Transistor Outline, Vertical
- Pin Count
- 27
- Lifecycle
- OBSOLETE
- Datasheet
- LM4782TA/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $6.3100(MOQ 500)
- Temp Range
- -20.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM4782TA/NOPB?
- Triple-channel audio amplifier with 25W nominal output power per channel for high-fidelity home audio systems
- Wide supply voltage range from 20V to 64V enabling use with standard unregulated transformer power supplies
- 20 kHz audio bandwidth with low THD for full-range speaker amplification without external equalization
- TO-220 through-hole package with integrated heatsink tab simplifying thermal management in power amplifier designs
What is LM4782TA/NOPB used for?
The LM4782TA/NOPB is designed for 2.1 and 3-channel home theater amplifiers, active speaker systems, and surround sound receivers requiring substantial output power. Its wide supply voltage range allows connection directly to ±32V split or 64V single-supply transformer-based power stages. The device is also used in professional audio equipment and high-power multimedia desktop speakers where all three channels drive independent speaker loads.
What are the specifications of LM4782TA/NOPB?
| Pbfree Code | No |
| YTEOL | 0 |
| Additional Feature | OPERATES WITH 20V TO 64V SUPPLY |
| Bandwidth-Nom | 20kHz |
| Consumer IC Type | AUDIO AMPLIFIER |
| JESD-30 Code | R-XZIP-T27 |
| JESD-609 Code | e3 |
| Number of Channels | 3 |
| Number of Functions | 1 |
| Output Power-Nom | 25W |
| Package Body Material | UNSPECIFIED |
| Package Equivalence Code | ZIP27,.16,.16,40 |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Supply Current-Max | 120mA |
| Surface Mount | NO |
| Temperature Grade | OTHER |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 1mm |
| Terminal Position | ZIG-ZAG |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.33.00.01 |
Where can I find the LM4782TA/NOPB datasheet?
LM4782TA/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM4782TA/NOPB?
Compatible alternatives and drop-in replacements for LM4782TA/NOPB:
Frequently Asked Questions
How much power can the LM4782TA/NOPB deliver and what supply voltage does it need?
The LM4782TA/NOPB delivers 25W nominal output power per channel across 3 independent channels, operating from a supply voltage range of 20V to 64V. This makes it capable of driving 8-ohm speakers at significant volume levels in stereo plus subwoofer or 3-channel surround configurations without clipping.
For a 2.1 home theater amplifier design, how should the LM4782TA/NOPB be thermally managed?
The LM4782TA/NOPB is housed in a TO-220 style package with an exposed heatsink tab rated to dissipate significant power. For 3-channel operation near the 25W per channel rating, a heatsink with thermal resistance below 2°C/W is recommended, keeping junction temperature within the 150°C maximum while operating from a 40V to 64V supply.
Which audio applications are best matched to the LM4782TA/NOPB triple amplifier?
The device suits 2.1 and 3.0 channel amplifier configurations in home audio receivers, active 3-way speaker systems, and multimedia desktop systems. Its 20 kHz audio bandwidth covers the full audible spectrum, and the 3-channel integration reduces PCB area compared to using three separate single-channel amplifier ICs at equivalent 25W output levels.
How does the LM4782TA/NOPB compare to the LM4766T for stereo-only amplifier builds?
The LM4782TA/NOPB provides 3 amplifier channels versus 2 channels in the LM4766T, at a similar 25W per channel output. For stereo-only builds with no subwoofer, the LM4766T is simpler, but the LM4782TA/NOPB is preferred when a dedicated center or LFE channel is needed, adding the third 25W output without a second IC.
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Why Buy from FindMyChip
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
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 500+ | $7.1000 | $3550.00 |
| 1000+ | $6.7100 | $6710.00 |
| 10000+ | $6.3100 | $63100.00 |
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