Lumissil Microsystems IS31AP4991A-GRLS2-TR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 3.15 | Dhs. 3.15 |
| 15+ | Dhs. 3.04 | Dhs. 45.60 |
| 25+ | Dhs. 2.97 | Dhs. 74.25 |
| 50+ | Dhs. 2.81 | Dhs. 140.50 |
| 100+ | Dhs. 2.48 | Dhs. 248.00 |
| N+ | Dhs. 0.50 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Lumissil Microsystems |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Part Status | Active |
| Type | Class AB |
| Output Type | 1-Channel (Mono) |
| Max Output Power x Channels @ Load | 1.15W x 1 @ 8Ohm |
| Voltage - Supply | 2.7V ~ 5.5V |
| Features | Depop, Standby |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Grade | - |
| Qualification | - |
| Supplier Device Package | 8-SOIC |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| ROHS |  |
The IS31AP4991A is a mono Class AB audio amplifier designed for portable and battery-powered applications. Operating from 2.7V to 5.5V, it delivers up to 1.15W into an 8Ω speaker with low distortion. Integrated depop circuitry eliminates startup and shutdown noise, while a standby mode conserves power. Housed in a compact 8-SOIC package, this amplifier is ideal for Bluetooth speakers, toys, intercoms, and alarm systems where efficiency and audio clarity are essential.
- Low Voltage Operation: Works from 2.7V to 5.5V, compatible with single-cell Li-ion batteries.
- Depop Technology: Eliminates audible click and pop noise during power transitions for a better user experience.
- Standby Mode: Reduces power consumption to near zero, extending battery life in portable devices.
- Compact SOIC-8 Package: Small footprint saves PCB space, ideal for space-constrained designs.
- Class AB Fidelity: Provides low total harmonic distortion (THD) for clear, natural sound reproduction.
Portable Bluetooth Speakers
The IS31AP4991A's 1.15W output into 8Ω and low 2.7V minimum supply make it perfect for compact Bluetooth speakers, providing clear audio with minimal power drain.
Battery-Powered Toys
With a standby mode and wide voltage range, this IC is ideal for sound effects and voice playback in toys, extending battery life while delivering sufficient volume.
Intercom Systems
Its mono output and depop circuitry ensure clean audio transitions in intercoms, reducing annoying clicks during voice transmission.
Alarm and Warning Drivers
The robust Class AB design and thermal stability allow the IS31AP4991A to drive alarm tones reliably in security systems and warning devices.
Line Drivers for Audio Equipment
As a pre-amplifier or line driver, this chip provides low distortion signal buffering for audio mixers and portable media players.
DIY Audio Projects
Hobbyists can easily integrate this SOIC-8 package amplifier into custom audio circuits, benefiting from its simple external component count and proven performance.
| Model | Package | Voltage Range | Output Power (Typical) |
|---|---|---|---|
| IS31AP4991A-GRLS2-TR | 8-SOIC | 2.7V ~ 5.5V | 1.15W x 1 @ 8Ω |
| PAM8014AZR | U-WLB1313-9 | 2.5V ~ 5.5V | 3.2W x 1 @ 4Ω |
| TPA301DR | 8-SOIC | 2.5V ~ 5.5V | 700mW x 1 @ 8Ω |
| TS482IDT | 8-SOIC | 2V ~ 5.5V | 107mW x 2 @ 16Ω |
- Q: What is the typical output power of the IS31AP4991A?
- A: It delivers 1.15W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.7V to 5.5V.
- Q: Does this amplifier require external components to reduce pop noise?
- A: Yes, it includes a depop feature to minimize click and pop during startup and shutdown.
- Q: Can I use this IC in battery-powered devices?
- A: Yes, its low voltage operation and standby mode make it ideal for portable battery-powered applications.
- Q: What is the amplifier class?
- A: It is a Class AB mono amplifier, offering low distortion and good audio fidelity.
IS31AP4991A-GRLS2-TR.pdf
- Q: What is the typical output power of the IS31AP4991A?
- A: It delivers 1.15W into an 8Ω load at 5V supply.
- Q: What is the supply voltage range?
- A: The operating supply voltage is 2.7V to 5.5V.
- Q: Does this amplifier require external components to reduce pop noise?
- A: Yes, it includes a depop feature to minimize click and pop during startup and shutdown.
- Q: Can I use this IC in battery-powered devices?
- A: Yes, its low voltage operation and standby mode make it ideal for portable battery-powered applications.
- Q: What is the amplifier class?
- A: It is a Class AB mono amplifier, offering low distortion and good audio fidelity.
