The LM4845ITL/NOPB is an audio power amplifier designed for portable applications such as cellular phones and PDAs. It delivers 500mW of continuous average power into an 8,Ѷ bridged-tied load (BTL) with a total harmonic distortion plus noise (THD+N) of 1% at 1kHz. In stereo single-ended (SE) mode, it provides 25mW per channel into 32,Ѷ loads with the same THD+N specification. The amplifier operates from a single supply voltage ranging from 2.7V to 5.5V and features an output capacitor-less (OCL) configuration, requiring only seven external components in this mode. The device includes a 32-step digital volume control, programmable 3D audio enhancement, and supports eight distinct output modes, which can be controlled via a two-wire I¬=C or three-wire SPI interface. It has three input channels for flexibility in audio routing and mixing. Additional features include thermal shutdown protection, low shutdown current of 0.1¬µA (typical), and "click and pop" suppression circuitry. The LM4845ITL/NOPB is packaged in a microSMD surface mount format, making it suitable for space-constrained designs.
Manufacturer: Texas Instruments
Win Source Part Number: 1054603-LM4845ITL/NO
Packaging: Reel - TR
Type: Class AB
Features: 3D, Depop, I2C, Mute, Shutdown, SPI, Thermal Protection, Volume Control
Mounting: SMD (SMT)
Output Type: 1-Channel (Mono) with Stereo Headphones
Max Output Power x Channels @ Load: 1.15W x 1 @ 8 Ohm; 75mW x 2 @ 32 Ohm
Categories: Integrated Circuits
Status: Obsolete(EOL)
Temperature Range - Operating: -40°C to 85°C (TA)
Case / Package: 25-DSBGA
Dimension: 25-WFBGA, DSBGA
Supply Voltage - Operating: 2.7 V to 5.5 V
Popularity: Medium
Fake Threat In the Open Market: 34 pct.
Supply and Demand Status: Sufficient
Amplifier IC 1-Channel (Mono) with Stereo Headphones Class AB 25-DSBGA
Audio Amplifier, 3 Func, PBGA25
Audio Amplifier, 3 Func, PBGA25
Audio Amp Headphone/Speaker 1-CH Mono/2-CH Stereo 1.15W Class-AB 25-Pin uSMD T/R Product overview: LM4845ITL/NOPB from Texas Instruments is an Audio Amplifier for embedded electronics, industrial equipment, maintenance repair, OEM production, and component sourcing. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 1.15W. Search-friendly keywords include Audio Amplifier, Audio Amplifiers, electronic component, datasheet, replacement part, 1.15W. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 742-LM4845ITL/NOPB can be used for catalog matching and distributor lookup.
IC AMP AB MONO 1.15W 25DSBGA
AUDIO AMPLIFIER, 3 FUNC, PBGA25
Amplifier IC 1-Channel (Mono) with Stereo Headphones Class AB 25-DSBGA
| Win Source Electronics | DigiKey | Rochester Electronics | ERSAELECTRONICS PTE. LTD. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | Quarktwin Technology Ltd. | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|---|
| Product Category | Audio Amplifier Chips | Audio Amplifier Chips | Operational Amplifiers | Audio Amplifier Chips | Audio Amplifier Chips | Amplifier and Comparator Chips | Audio Amplifier Chips | Audio Amplifier Chips |
| Product Number | 1054603-LM4845ITL/NOPB | 296-36618-2-ND | LM4845ITL/NOPB | 742-LM4845ITL/NOPB | LM4845ITL/NOPB | LM4845ITL/NOPB | LM4845ITL/NOPB | LM4845ITL/NOPB |
| Product Name | Linear - Linear - Amplifiers - Audio - LM4845ITL/NOPB | Audio Amplifiers | 1.15W Audio Amplifier | Linear - Amplifiers - Audio | Integrated Circuits (ICs) - Linear - Amplifiers | Audio Amplifiers | Audio Amplifiers | |
| Supply Voltage (VS) | 2.7 to 5.5 volts | 2.7 to 5.5 volts | 2.7 to 5.5 volts | |||||
| Output Power | 1.15 watts | 1.15 watts | 1.15 watts | 1.15 watts | ||||
| Operating Temperature | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | -40 C (-40 F) | -40 to 85 C (-40 to 185 F) | -40 to 85 C (-40 to 185 F) | |||
| Operation Class | Class A; Class AB | Class AB | Class AB | |||||
| Package Type | 25-DSBGA | 25-WFBGA | BGA25 | Tape and Reel | 25-WFBGA |
