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1-W, mono, analog input, Class-AB audio amplifier with shutdown mode & selectable gain

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TPA4861D General Description

AMP, POWER, AUDIO, SMD, 4861, SOIC8; Output Power:1W; Amplifier Class:AB; No. of Channels:1 Channel; Supply Voltage Range:2.7V to 5.5V; Amplifier Case Style:SOIC; No. of Pins:8Pins; Load Impedance:8ohm; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Product Range:-; Automotive Qualification Standard:-; MSL:MSL 1 - Unlimited; SVHC:No SVHC (15-Jan-2019); Amplifer Supply Voltage:2.7V to 5.5V; Amplifier Type:Power; Bandwidth:1.5MHz; Base Number:4861; Load Impedance Min:8ohm; No. of Amplifiers:1Amplifiers; No. of Channels:1Channels; Operating Temperature Range:-40°C to +85°C; Output Power (Pout):1W; Power Rating RMS:1W; Supply Voltage + Nom:5.5V; Supply Voltage Max:5.5V; Supply Voltage Min:2.7V; THD + N:0.2% @ 1W, 8ohm, VDD=5V; Termination Type:Surface Mount Device

Texas Instruments, Inc Inventory

Key Features

  • 1-W BTL Output (5 V, 0.11 % THD+N)
  • 3.3-V and 5-V Operation
  • No Output Coupling Capacitors Required
  • Shutdown Control (IDD = 0.6 µA)
  • Uncompensated Gains of 2 to 20 (BTL Mode)
  • Surface-Mount Packaging
  • Thermal and Short-Circuit Protection
  • High Supply Ripple Rejection Ratio (56 dB at 1 kHz)
  • LM4861 Drop-In Compatible
Texas Instruments, Inc Original Stock
Texas Instruments, Inc Inventory


Category Integrated Circuits (ICs)LinearAmplifiersAudio Amplifiers Mfr Texas Instruments
Series - Package Tube
Product Status Active Type Class AB
Output Type 1-Channel (Mono) Max Output Power x Channels @ Load 1.1W x 1 @ 8Ohm
Voltage - Supply 2.7V ~ 5.5V Features Short-Circuit and Thermal Protection, Shutdown
Mounting Type Surface Mount Operating Temperature -40°C ~ 85°C (TA)
Supplier Device Package 8-SOIC Package / Case 8-SOIC (0.154", 3.90mm Width)
Base Product Number TPA4861 Audio input type Analog Input
Architecture Class-AB Speaker channels (max) Mono
Rating Catalog Power stage supply (max) (V) 5.5
Power stage supply (min) (V) 2.7 Load (min) (Ω) 8
Output power (W) 1 THD + N at 1 kHz (%) 0.12
Iq (typ) (mA) 3.5 Control interface Hardware
Closed/open loop Closed Analog supply (min) (V) 2.5
Analog supply voltage (max) (V) 5.5 PSRR (dB) 75
Operating temperature range (°C) -40 to 85 feature-function Speaker
feature-amplifier-type Class-AB feature-rail-to-rail
feature-typical-gain-bandwidth-product-mhz 1.5 feature-typical-psrr-db 70
feature-total-harmonic-distortion-noise 0.2%@8Ohm@1W feature-input-signal-type Single
feature-output-signal-type Differential feature-output-type 1-Channel Mono
feature-maximum-output-current-ma feature-maximum-input-offset-voltage-mv
feature-maximum-input-bias-current-ua feature-maximum-power-dissipation-mw 725
feature-packaging Tube feature-rohs
feature-rad-hard Unknown feature-pin-count 8
feature-supplier-package SOIC feature-standard-package-name1 SO
feature-cecc-qualified No feature-esd-protection Yes
feature-military No feature-aec-qualified No
feature-aec-qualified-number feature-auto-motive No
feature-p-pap No feature-eccn-code EAR99
feature-svhc Yes

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After-Sales & Settlement Related

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customers are required to pay all possible fees, including sales tax,customs fees, etc.

shipping Shipping And Packing
Shipping Method

Our products are mainly transported and delivered by DHL, FedEx, UPS and other logistics partners on site -- Available to 200+ countries.


AVAQ determines and packages all devices based on electrostatic discharge (ESD) and moisture sensitivity level (MSL) protection requirements.

warranty Warranty & Returns

Our policies and procedures are designed to ensure compliance with various quality specifications and to quickly resolve quality-related issues.

We promise to provide 365 days quality assurance service for all our products.

If you have any dissatisfaction with the quality of the product you received, you can contact us for a refund or exchange, as long as the product is kept in its original condition.

Ratings and Reviews

E**n 2023-05-18

Excellent power supply on the breadboard, switch choose 3.3 or 5 volts, on the pin connector additional power one 5 other 3.3

J**n 2022-10-12

As described, untested. Looks OK.

J**n 2022-08-19

Ordered 2 pcs. Packed separately in bags. Glue well.

L**n 2022-08-18

I received goods. I didn´t try it yet. Thank you.



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