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SGM4918AYD10G

Public Made by Adom

by adom

SGMICRO Audio Amplifiers, TDFN-10-EP(3x3). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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SGM4918AYD10G

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.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sgm4918ayd10g.step / sgm4918ayd10g.glb are 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, primary claude-haiku-5-5 (text), consensus claude-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).

Datasheet PDF