LM48512TL/NOPB
Active2.7-W, MONO, ANALOG INPUT CLASS-D AUDIO AMP WITH INTEGRATED BOOST CONVERTER & EMI SUPPRESSION
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LM48512TL/NOPB
Active2.7-W, MONO, ANALOG INPUT CLASS-D AUDIO AMP WITH INTEGRATED BOOST CONVERTER & EMI SUPPRESSION
Technical Specifications
Parameters and characteristics for this part
| Specification | LM48512TL/NOPB |
|---|---|
| Max Output Power x Channels @ Load | 1.8 W, 1 |
| Mounting Type | Surface Mount |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Output Type | 1-Channel (Mono) |
| Package / Case | 16-WFBGA, DSBGA |
| Supplier Device Package | 16-DSBGA (2.5x2.12) |
| Type | Class D |
| Voltage - Supply [Max] | 5.5 V |
| Voltage - Supply [Min] | 2.3 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.88 | |
| 10 | $ 1.86 | |||
| 25 | $ 1.60 | |||
| 100 | $ 1.30 | |||
| Digi-Reel® | 1 | $ 2.88 | ||
| 10 | $ 1.86 | |||
| 25 | $ 1.60 | |||
| 100 | $ 1.30 | |||
| Tape & Reel (TR) | 250 | $ 1.16 | ||
| 500 | $ 1.07 | |||
| 750 | $ 1.02 | |||
| 1250 | $ 0.97 | |||
| 1750 | $ 0.94 | |||
| 2500 | $ 0.91 | |||
| 6250 | $ 0.85 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.61 | |
| 100 | $ 1.24 | |||
| 250 | $ 0.92 | |||
| 1000 | $ 0.65 | |||
Description
General part information
LM48512 Series
Part of National’s PowerWise family or products, the LM48512 delivers 1.8W into 8Ω, while consuming 14.5mA of quiescent current. The LM48512 also features National’s Enhanced Emissions Suppression (E2S) system, a patented, ultra low EMI PWM architecture that significantly reduces RF emissions while preserving audio quality and efficiency. LM48512 improves battery life, reduces external component count, board area consumption, system cost, and simplifies design.
The LM48512 is designed to meet the demands of portable multimedia devices. The LM48512 features high efficiency compared to other boosted amplifiers and low EMI Class D amplifiers. The LM48512 is capable of driving an 8Ω speaker to 5.5V levels (1.8W) from a 3.6V supply while operating at 82% efficiency. Flexible power supply requirements allow operation from 2.3V to 5.5V. The E2S system features a patented edge rate control (ERC) architecture that further reduces emissions by minimizing the high frequency component of the device output, while maintaining high quality audio reproduction (THD+N = 0.03%) and high efficiency. A low power shutdown mode reduces supply current consumption to 0.04μA.
The LM48512 features a battery-saving automatic gain control (AGC). The AGC detects the battery voltage and reduces the gain of the amplifier to limit the output as the battery voltage decreases.
Documents
Technical documentation and resources