component
LME49743MTX
Public Made by Adomby adom
Texas Instruments Audio Power OpAmps, TSSOP-14. 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
markdownLME49743MTX
Texas Instruments · Audio Power OpAmps · TSSOP-14
LME49743MTX from Texas Instruments, in a TSSOP-14. 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 | OUT1 | output | Output of amplifier 1, able to drive 600Ω loads with ±21mA output current and continuous short-circuit protection. |
| 2 | IN1- | input | Inverting input of amplifier 1, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 3 | IN1+ | input | Non-inverting input of amplifier 1, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 4 | V+ | power_in | Positive supply; total supply voltage VS = V+ - V- is ±4.0V to ±17V operating, 36V absolute maximum. |
| 5 | IN2+ | input | Non-inverting input of amplifier 2, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 6 | IN2- | input | Inverting input of amplifier 2, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 7 | OUT2 | output | Output of amplifier 2, able to drive 600Ω loads with ±21mA output current and continuous short-circuit protection. |
| 8 | OUT3 | output | Output of amplifier 3, able to drive 600Ω loads with ±21mA output current and continuous short-circuit protection. |
| 9 | IN3- | input | Inverting input of amplifier 3, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 10 | IN3+ | input | Non-inverting input of amplifier 3, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 11 | V- | power_in | Negative supply; total supply voltage VS = V+ - V- is ±4.0V to ±17V operating, 36V absolute maximum. |
| 12 | IN4+ | input | Non-inverting input of amplifier 4, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 13 | IN4- | input | Inverting input of amplifier 4, with input voltage limited to (V-) - 0.7V to (V+) + 0.7V. |
| 14 | OUT4 | output | Output of amplifier 4, able to drive 600Ω loads with ±21mA output current and continuous short-circuit protection. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Operational Amplifier/Comparator |
| Pins | 14 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Total Harmonic Distortion + Noise | THD+N | 0.0001 | 0.0002 | % | AV = 1, VOUT = 3VRMS, RL = 600Ω | 3 | |
| Intermodulation Distortion | IMD | 0.0005 | % | AV = 1, VOUT = 3VRMS, two-tone 60Hz & 7kHz 4:1 | 3 | ||
| Gain Bandwidth Product | GBWP | 25 | 30 | MHz | 3 | ||
| Slew Rate | SR | 9.5 | 12 | V/μs | 3 | ||
| Equivalent Input Noise Voltage | en | 0.48 | 0.65 | μVRMS | fBW = 20Hz to 20kHz | 3 | |
| Equivalent Input Noise Density | en | 3.5 | 4.5 | nV/√Hz | f = 1kHz | 3 | |
| Offset Voltage | VOS | -1 | 0.15 | 1 | mV | 3 | |
| Average Input Offset Voltage Shift vs Power Supply Voltage | PSRR | 94 | 98 | dB | ΔVS = 20V | 3 | |
| Input Bias Current | IB | 190 | 250 | nA | VCM = 0V | 3 | |
| Input Offset Current | IOS | 7 | 40 | nA | VCM = 0V | 3 | |
| Common-Mode Rejection | CMRR | 98 | 106 | dB | -10V<VCM<10V | 3 | |
| Open Loop Voltage Gain | AVOL | 110 | dB | -10V<VOUT<10V, RL = 600Ω | 3 | ||
| Open Loop Voltage Gain | AVOL | 100 | 110 | dB | -10V<VOUT<10V, RL = 10kΩ | 3 | |
| Maximum Output Voltage Swing | VOUTMAX | -12 | 12.4 | V | RL = 600Ω | 3 | |
| Maximum Output Voltage Swing | VOUTMAX | -13 | V | RL = 2kΩ | 3 | ||
| Output Current | IOUT | -20 | 21 | mA | RL = 600Ω, VS = ±17V | 3 | |
| Total Quiescent Current | IS | 10 | 14 | mA | IOUT = 0mA | 4 | |
| Power Supply Voltage | VS | 36 | V | VS = V+ - V- | 2 | ||
| Storage Temperature | -65 | 150 | °C | 2 | |||
| Junction Temperature | 150 | °C | 2 | ||||
| ESD Susceptibility (Human Body Model) | 750 | V | Human body model, 100pF discharged through 1.5kΩ | 2 | |||
| ESD Susceptibility (Machine Model) | 175 | V | Machine model, 200pF | 2 | |||
| Supply Voltage Range | VS | 4 | 17 | V | 2 | ||
| Temperature Range | TA | -40 | 85 | °C | TMIN ≤ TA ≤ TMAX | 2 | |
| Thermal Resistance Junction-to-Ambient | θJA | 140 | °C/W | Package MT (TSSOP) | 2 |
CAD (KiCad official)
- Symbol:
LME49743MTX - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
lme49743mtx-etched.step/lme49743mtx-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);lme49743mtx.step/lme49743mtx.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
284f797fea5372e3, retrieved 2026-10-31, tier: manufacturer) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-sonnet-5-5(text+vision), consensusclaude-opus-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).