This website uses cookies. By using this site, you consent to the use of cookies. For more information, please take a look at our Privacy Policy.

Images are for reference only,

See Technical Specifications

LM4950TSX/NOPB +BOM

3.1-W, mono, 9.6- to 16-V, analog input Class-AB audio amplifier

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LM4950TSX/NOPB
Datasheet:

LM4950TSX/NOPB Datasheet (PDF)
Series:

Boomer®
Type:

Class AB
Output Type:

1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power X Channels @ Load:

7.5W x 1 @ 8Ohm; 3.1W x 2 @ 4Ohm
EDA/CAD Models:

Request Free CAD Models for LM4950TSX/NOPB

LM4950TSX/NOPB General Description

The LM4950 is a dual audio power amplifier primarily designed for demanding applications in flat panel monitors and TV's. It is capable of delivering 3.1 watts per channel to a 4Ω single-ended load with less than 1% THD+N or 7.5 watts mono BTL to an 8Ω load, with less than 10% THD+N from a 12V_DC power supply.

Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external components. The LM4950 does not require bootstrap capacitors or snubber circuits. Therefore, it is ideally suited for display applications requiring high power and minimal size.

The LM4950 features a low-power consumption active-low shutdown mode. Additionally, the LM4950 features an internal thermal shutdown protection mechanism along with short circuit protection.

The LM4950 contains advanced pop & click circuitry that eliminates noises which would otherwise occur during turn-on and turn-off transitions.

The LM4950 is a unity-gain stable and can be configured by external gain-setting resistors.

Key Features

Pop & Click Circuitry Eliminates Noise During Turn-On and Turn-Off Transitions
Low Current, Active-Low Shutdown Mode
Low Quiescent Current
Stereo 3.1W Output, R_L = 4Ω
Mono 7.5W BTL Output, R_L = 8Ω
Short Circuit Protection
Unity-Gain Stable
External Gain Configuration Capability

Key Specifications

Quiescent Power Supply Current 16mA (typ)
P_OUT (SE)
- V_DD = 12V, R_L = 4Ω, 1% THD+N: 3.1W (typ)
P_OUT (BTL)
- V_DD = 12V, R_L = 8Ω, 10% THD+N: 7.5W (typ)
Shutdown Current 40μA (typ)

All trademarks are the property of their respective owners.

Specifications

Category	Integrated Circuits (ICs)LinearAmplifiersAudio Amplifiers	Series	Boomer®
Type	Class AB	Output Type	1-Channel (Mono) or 2-Channel (Stereo)
Max Output Power x Channels @ Load	7.5W x 1 @ 8Ohm; 3.1W x 2 @ 4Ohm	Voltage - Supply	9.6V ~ 16V
Features	Depop, Short-Circuit and Thermal Protection, Shutdown	Mounting Type	Surface Mount
Operating Temperature	-40°C ~ 85°C (TA)	Base Product Number	LM4950
Audio input type	Analog Input	Architecture	Class-AB
Speaker channels (max)	Stereo	Rating	Catalog
Power stage supply (max) (V)	16	Power stage supply (min) (V)	9.6
Load (min) (Ω)	4	Output power (W)	7.5
THD + N at 1 kHz (%)	0.03	Iq (typ) (mA)	16
Control interface	Hardware	Closed/open loop	Open
Analog supply (min) (V)	9.6	Analog supply voltage (max) (V)	16
PSRR (dB)	70	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
feature-typical-psrr-db	70	feature-total-harmonic-distortion-noise	0.05%@[email protected]
feature-input-signal-type	Single	feature-output-signal-type	Single\|Differential
feature-output-type	1-Channel Mono\|2-Channel Stereo	feature-maximum-output-current-ma	5000(Typ)
feature-maximum-input-offset-voltage-mv	30	feature-maximum-input-bias-current-ua
feature-maximum-power-dissipation-mw		feature-packaging	Tape and Reel
feature-rad-hard		feature-pin-count	10
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	feature-svhc-exceeds-threshold	Yes