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SGM4918AYD10G
Public Made by Adomby adom
SGMICRO Audio Amplifiers, TDFN-10-EP(3x3). 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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README
markdownSGM4918AYD10G
SGMICRO · Audio Amplifiers · TDFN-10-EP(3x3)
SGM4918AYD10G from SGMICRO, in a TDFN-10-EP(3x3). 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 | C1P | passive | Positive terminal of the charge-pump flying capacitor; connect a 1µF capacitor between C1P and C1N. |
| 2 | C1N | passive | Negative terminal of the charge-pump flying capacitor; connect a 1µF capacitor between C1N and C1P, with absolute range (VSS - 0.3V) to +0.3V to GND. |
| 3 | VSS | power_out | Charge-pump output; bypass with a 1µF capacitor to GND, with absolute range -6V to +0.3V to GND. |
| 4 | OUTL | output | Left-channel amplifier output, with absolute range (VSS - 0.3V) to (VDD + 0.3V) to GND. |
| 5 | OUTR | output | Right-channel amplifier output, with absolute range (VSS - 0.3V) to (VDD + 0.3V) to GND. |
| 6 | INR | input | Right-channel input, with absolute range (VSS - 0.3V) to (VDD + 0.3V) to GND. |
| 7 | INL | input | Left-channel input, with absolute range (VSS - 0.3V) to (VDD + 0.3V) to GND. |
| 8 | VDD | power_in | Positive power-supply input, 2.7V to 5.1V recommended; bypass with 4.7µF and 0.1µF capacitors to GND, absolute maximum 6V to GND. |
| 9 | SHDN | input | Active-low shutdown input; VIH minimum 1.2V and VIL maximum 0.4V, absolute maximum -0.3V to +6V to GND. |
| 10 | GND | power_in | Signal ground reference for the device. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | SGMICRO |
| Package | TDFN-10-EP(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 11 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Operating Temperature Range | -40 | 85 | ℃ | 2 | |||
| VDD to GND | VDD | -0.3 | 6 | V | 2 | ||
| SHDN to GND | SHDN | -0.3 | 6 | V | 2 | ||
| VSS to GND | VSS | -6 | 0.3 | V | 2 | ||
| Junction Temperature | 150 | ℃ | 2 | ||||
| Storage Temperature Range | -65 | 150 | ℃ | 2 | |||
| Lead Temperature (Soldering, 10s) | 260 | ℃ | Soldering, 10s | 2 | |||
| ESD Susceptibility HBM | 3000 | V | HBM | 2 | |||
| Under-Voltage Lockout | UVLO | 2.2 | V | 4 | |||
| Quiescent Supply Current | IDD | 5.5 | mA | SHDN = VDD, VDD = 3.3V | 4 | ||
| Quiescent Supply Current | IDD | 5.8 | 8.2 | mA | SHDN = VDD, VDD = 5V | 4 | |
| Shutdown Supply Current | ISHDN | 0.01 | 3 | µA | SHDN = 0V | 4 | |
| SHDN Input Logic High | VIH | 1.2 | V | 4 | |||
| SHDN Input Logic Low | VIL | 0.4 | V | 4 | |||
| Turn-On Time | tON | 2.8 | ms | VDD = 5V | 4 | ||
| Output Offset Voltage | VOS | 1 | mV | Input AC-coupled to ground, VDD = 3.3V | 4 | ||
| Output Offset Voltage | VOS | -5.5 | 1.2 | 5.5 | mV | Input AC-coupled to ground, VDD = 5V | 4 |
| Power Supply Rejection Ratio | PSRR | -78 | dB | VDD = 5V, f = 217Hz, VRIPPLE = 200mVP-P | 4 | ||
| Power Supply Rejection Ratio | PSRR | -68 | dB | VDD = 5V, f = 1kHz, VRIPPLE = 200mVP-P | 4 | ||
| Power Supply Rejection Ratio | PSRR | -63 | dB | VDD = 5V, f = 20kHz, VRIPPLE = 200mVP-P | 4 | ||
| Output Power | POUT | 40 | mW | RL = 32Ω + 1µH, f = 1kHz, THD+N = 0.1%, VDD = 3.6V | 4 | ||
| Output Power | POUT | 80 | mW | RL = 32Ω + 1µH, f = 1kHz, THD+N = 0.1%, VDD = 5V | 4 | ||
| Output Impedance in Shutdown | 2 | kΩ | SHDN = 0V | 4 | |||
| Total Harmonic Distortion Plus Noise | THD+N | 0.02 | % | VDD = 3.6V, RL = 32Ω + 1µH, f = 1kHz, POUT = 10mW | 4 | ||
| Total Harmonic Distortion Plus Noise | THD+N | 0.03 | % | VDD = 5V, RL = 32Ω + 1µH, f = 1kHz, POUT = 20mW | 4 | ||
| Signal-to-Noise Ratio | SNR | 100 | dB | VDD = 5V, RL = 32Ω + 1µH, POUT = 25mW, BW < 22kHz | 4 | ||
| Crosstalk | 68 | dB | L to R, R to L, f = 10kHz, RL = 32Ω + 1µH, VOUT = 360mVRMS | 4 | |||
| Capacitive Drive | CL | 200 | pF | No sustained oscillations | 4 | ||
| Charge-Pump Oscillator Frequency | fOSC | 200 | 345 | 515 | kHz | 4 | |
| Thermal Shutdown Threshold | 140 | ℃ | 4 | ||||
| Thermal Shutdown Hysteresis | 15 | ℃ | 4 |
CAD (KiCad official)
- Symbol:
SGM4918AYD10G - Footprint:
Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm - 3D model: TDFN-10-EP(3x3) (KiCad packages3D, STEP)
- 3D model files:
sgm4918ayd10g-etched.step/sgm4918ayd10g-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);sgm4918ayd10g.step/sgm4918ayd10g.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: SGMICRO datasheet (11 pp, sha256
72c3ed3317f11363, retrieved 2026-10-18, 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).