component
LM4927SD
Public Made by Adomby adom
Texas Instruments Audio Amplifiers, WSON-8-EP(2x2). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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Contents
README
markdownLM4927SD
Texas Instruments · Audio Amplifiers · WSON-8-EP(2x2)
LM4927SD from Texas Instruments, in a WSON-8-EP(2x2). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SD | input | Shutdown control: the datasheet states shutdown is enabled by a logic low on this pin, giving an ultra-low shutdown current of 0.1 µA (typ). |
| 2 | BYP | passive | Bypass pin for the internal common-mode bias, decoupled externally as shown in the typical application circuit (Figure 1). |
| 3 | IN+ | input | Positive differential audio input of the fully differential amplifier. |
| 4 | IN- | input | Negative differential audio input of the fully differential amplifier. |
| 5 | Vo+ | output | Positive differential output driving the speaker load; the datasheet specifies no coupling capacitors are required and the device can drive capacitive loads up to 100 pF. |
| 6 | VDD | power_in | Supply pin; the operating supply range is 2.4 V to 5.5 V, with an absolute maximum of 6.0 V. |
| 7 | GND | power_in | Ground reference for the amplifier and supply. |
| 8 | Vo- | output | Negative differential output driving the speaker load; the datasheet specifies no output coupling capacitors are required. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8-EP(2x2) |
| Category | Amplifiers/Comparators |
| Pins | 9 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Quiescent Power Supply Current (VIN = 0V, no load) | IDD | 2.2 | 4.5 | mA | VDD = 5V; VIN = 0V, no load | 4 | |
| Quiescent Power Supply Current (VIN = 0V, RL = 8Ω) | IDD | 2.2 | 4.5 | mA | VDD = 5V; VIN = 0V, RL = 8Ω | 4 | |
| Shutdown Current | ISD | 0.1 | 1 | µA | VDD = 5V; VSHUTDOWN = GND | 4 | |
| Output Power | Po | 1.2 | 1.3 | W | VDD = 5V; THD = 1% (max); f = 1 kHz; RL = 8Ω | 4 | |
| Power Supply Rejection Ratio | PSRR | 71 | 85 | dB | VDD = 5V; f = 1kHz; Vripple = 200mV sine p-p; 10Ω terminated input | 4 | |
| Power Supply Rejection Ratio | PSRR | 90 | dB | VDD = 5V; f = 217Hz; Vripple = 200mV sine p-p; 10Ω terminated input | 4 | ||
| Shutdown Voltage Input High | VSDIH | 1.4 | V | VDD = 5V | 4 | ||
| Shutdown Voltage Input Low | VSDIL | 0.4 | V | VDD = 5V | 4 | ||
| Internal Feedback Resistance | RF | 37 | 40 | 47 | kΩ | VDD = 5V; Ri = 40kΩ | 4 |
| Gain | AV | -0.68 | 0 | 1.4 | dB | VDD = 5V; Ri = 40kΩ | 4 |
| Quiescent Power Supply Current (VIN = 0V, no load) | IDD | 2 | 4.3 | mA | VDD = 3V; VIN = 0V, no load | 5 | |
| Quiescent Power Supply Current (VIN = 0V, RL = 8Ω) | IDD | 2 | 4.3 | mA | VDD = 3V; VIN = 0V, RL = 8Ω | 5 | |
| Shutdown Current | ISD | 0.1 | 1 | µA | VDD = 3V; VSHUTDOWN = GND | 5 | |
| Output Offset | VOS | 4 | mV | VDD = 3V; VIN = 0V | 5 | ||
| Shutdown Voltage Input High | VSDIH | 1.4 | V | VDD = 3V | 5 | ||
| Shutdown Voltage Input Low | VSDIL | 0.4 | V | VDD = 3V | 5 | ||
| Operating Temperature Range | TMIN ≤ TA ≤ TMAX | -40 | 85 | °C | 3 | ||
| Supply Voltage | VDD | 2.4 | 5.5 | V | 3 | ||
| Supply Voltage | 6 | V | 3 | ||||
| Storage Temperature | -65 | 150 | °C | 3 | |||
| Input Voltage | -0.3 | V | Upper limit printed as VDD + 0.3V | 3 | |||
| Junction Temperature | 150 | °C | 3 | ||||
| ESD Susceptibility (Human Body Model) | 2000 | V | Human body model, 100pF discharged through 1.5kΩ | 3 | |||
| ESD Susceptibility (Machine Model) | 200 | V | Machine Model, 220pF-240pF discharged through all pins | 3 | |||
| Thermal Resistance junction-to-ambient | θJA | 63 | °C/W | Printed as θJA (SD) | 3 |
Materials and finish
As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).
| Part | Material | Colour / plating | Datasheet says | Page |
|---|---|---|---|---|
| contacts | copper | heatsinking. In many cases, larger traces near the output, VDD, and GND pins can be used to lower the θJA. The larger areas of copper provide a form of heatsinking allowing higher power dissipation. F | 12 |
CAD (KiCad official)
- Symbol:
LM4927SD - Footprint:
Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm - 3D model: WSON-8-EP(2x2) (KiCad packages3D, STEP)
- 3D model files:
lm4927sd-etched.step/lm4927sd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lm4927sd.step/lm4927sd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (21 pp, sha256
59053aa2a18e6297, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).