TPA4411MRTJR from Texas Instruments, in a QFN-20-EP(4x4). 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	Charge pump flying capacitor positive terminal.
2	PGND	power_in	Power ground, connect to ground.
3	C1N	passive	Charge pump flying capacitor negative terminal.
4	NC	unconnected	No connection.
5	PVSS	power_out	Output from charge pump (negative supply rail).
6	NC	unconnected	No connection.
7	SVSS	power_in	Amplifier negative supply, connect to PVSS via star connection.
8	NC	unconnected	No connection.
9	OUTL	output	Left audio channel output signal.
10	SVDD	power_in	Amplifier positive supply, connect to PVDD via star connection.
11	OUTR	output	Right audio channel output signal.
12	NC	unconnected	No connection.
13	INL	input	Left audio channel input signal.
14	SDR	input	Right channel shutdown, active low logic (VIH min 1.5 V, VIL max 0.5 V).
15	INR	input	Right audio channel input signal.
16	NC	unconnected	No connection.
17	SGND	power_in	Signal ground, connect to ground; route separately from PGND back to the decoupling capacitor.
18	SDL	input	Left channel shutdown, active low logic (VIH min 1.5 V, VIL max 0.5 V).
19	PVDD	power_in	Supply voltage, connect to positive supply (1.8 V to 4.5 V).
20	NC	unconnected	No connection.
21	EP	passive	Exposed pad must be soldered to a floating PCB plane; do not connect to power or ground since it is connected internally to PVSS.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	QFN-20-EP(4x4)
Category	Operational Amplifier/Comparator
Pins	21

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage	AVDD, PVDD	-0.3		5.5	V		3
Input voltage	VI	-0.3			V	-0.3 V to VDD + 0.3 V	3
Operating free-air temperature range	TA	-40		85	°C		3
Operating junction temperature range	TJ	-40		150	°C		3
Storage temperature range	Tstg	-65		150	°C		3
Lead temperature				260	°C	1,6 mm (1/16 inch) from case for 10 seconds	3
Supply voltage	AVDD, PVDD	1.8		4.5	V		4
High-level input voltage SDL, SDR	VIH	1.5			V		4
Low-level input voltage SDL, SDR	VIL			0.5	V		4
Operating free-air temperature	TA	-40		85	°C		4
Output offset voltage	/VOS/			8	mV	VDD = 1.8 V to 4.5 V, Inputs grounded	4
Power Supply Rejection Ratio	PSRR		-80	-69	dB	VDD = 1.8 V to 4.5 V	4
High-level input current (SDL, SDR)	/IIH/			1	µA	VDD = 4.5 V, VI = VDD	4
Low-level input current (SDL, SDR)	/IIL/			1	µA	VDD = 4.5 V, VI = 0 V	4
Supply current	IDD		5.3	6.5	mA	VDD = 1.8 V, No load, SDL = SDR = VDD	4
Supply current	IDD		6.5	8	mA	VDD = 3 V, No load, SDL = SDR = VDD	4
Supply current	IDD		8	10	mA	VDD = 4.5 V, No load, SDL = SDR = VDD	4
Supply current, shutdown	IDD			1	µA	Shutdown mode, VDD = 1.8 V to 4.5 V	4
Closed-loop voltage gain	Av	-1.55	-1.5	-1.45	V/V	VDD = 3 V, TA = 25°C, RL = 16 Ω	5
Charge pump switching frequency	fosc	280	320	420	kHz		5
Input impedance		12	15	18	kΩ		5
Thermal shutdown threshold		150	170		°C	Threshold	5
High-level output voltage	VOH		2.2		V	VDD = 3 V, RL = 16 Ω	4
Low-level output voltage	VOL		-1.1		V	VDD = 3 V, RL = 16 Ω	4
Output power (outputs in phase)	PO		50		mW	THD = 1%, VDD = 3 V, f = 1 kHz	5
Output power (outputs in phase)	PO		100		mW	THD = 1%, VDD = 4.5 V, f = 1 kHz	5
Gain matching	ΔAv		1		%		5
Thermal shutdown hysteresis			15		°C	Hysteresis	5
Start-up time from shutdown			450		µs		5
Maximum power dissipation (TPA4411M RTJ)				3450	mW	TA ≤ 25°C, derating factor 34.5 mW/°C	4

CAD (KiCad official)

Symbol: TPA4411MRTJR
Footprint: Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
3D model: QFN-20-EP(4x4) (KiCad packages3D, STEP)
3D model files: tpa4411mrtjr-etched.step / tpa4411mrtjr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tpa4411mrtjr.step / tpa4411mrtjr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (38 pp, sha256 904ad318703402a3, retrieved 2026-10-31, tier: manufacturer)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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

TPA4411MRTJR

Verified TPA4411MRTJR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

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