TPA2012D2RTJT

Texas InstrumentsExtended

-40℃~+85℃ -55dB 0.11% 2 Pairs Differential Inputs 2-Channel 2.1Wx2@4Ω 2.5V~5.5V 9mA Class D Enable/shutdown function、Filterless architecture、ESD protection、Digitally programmable gain QFN-20-EP(4x4) Audio Amplifiers ROHS

Datasheet JLCPCB LCSC

Part id: ti/TPA2012D2RTJT
Category: Audio Amplifiers
Package: QFN-20-EP(4x4)
Pins: 21
In stock: 1 at JLCPCB (C116656)
Used on: 2 open-source boards

Overview

The TPA2012D2RTJT is an audio Amplifier made by Texas Instruments in a QFN-20-EP(4x4) package with 21 pins. -40℃~+85℃ -55dB 0.11% 2 Pairs Differential Inputs 2-Channel 2.1Wx2@4Ω 2.5V~5.5V 9mA Class D Enable/shutdown function、Filterless architecture、ESD protection、Digitally programmable gain QFN-20-EP(4x4) Audio Amplifiers ROHS.

PCBKit's library has its KiCad symbol (EasyEDA_Cloud:TPA2012D2RTJRG4, from EasyEDA) and its footprint (EasyEDA_Cloud:QFN-20_L4.0-W4.0-P0.5-TL-EP, from EasyEDA), ready for a KiCad board. 1 are in stock at JLCPCB (part C116656). 2 open-source boards in 2 repositories on GitHub use it.

Symbol

EasyEDA_Cloud:TPA2012D2RTJRG4From EasyEDA

Footprint

EasyEDA_Cloud:QFN-20_L4.0-W4.0-P0.5-TL-EPFrom EasyEDA

From the datasheet

Supply, least: 2.5 V · AVDD, PVDD, recommended operating min; same voltage required · p. 4
Supply, most: 5.5 V · AVDD, PVDD, recommended operating max; same voltage required · p. 4
Supply, absolute maximum: 6 V · AVDD, PVDD, active mode absolute max · p. 4
Supply, absolute maximum: 7 V · AVDD, PVDD, shutdown mode absolute max · p. 4
Works from: -40 °C · operating free-air temperature min · p. 4
Works up to: 85 °C · operating free-air temperature max · p. 4
Junction, hottest: 150 °C · operating junction temperature absolute max · p. 4
Takes working: 6 mA · typical supply current at VDD = 5.5 V, no load or output filter · p. 5
Takes asleep: 1.5 µA · max supply current in shutdown mode · p. 5
Switches at: 300 kHz · typical switching frequency at VDD = 2.5 V to 5.5 V · p. 5
Junction to air (RTJ (WQFN)): 34.6 K/W · junction-to-ambient thermal resistance · p. 4
Junction to case (RTJ (WQFN)): 34.3 K/W · junction-to-case top thermal resistance · p. 4
Junction to board (RTJ (WQFN)): 11.5 K/W · junction-to-board thermal resistance · p. 4
Junction to air (WQFN): 24 K/W · Junction to ambient, calculated from package derating factor · p. 23

What it is and has

Amplifier: Stereo filter-free Class-D audio power amplifier · p. 1
Output power: WQFN: 2.1 W/channel into 4 Ω at 5 V · p. 1
Output power: WQFN: 1.4 W/channel into 8 Ω at 5 V · p. 1
External components: Only two required · p. 1
Shutdown: Independent control for each channel · p. 1
Gain: Selectable 6, 12, 18, and 24 dB · p. 1
Shutdown pin bias: Internal pulldown resistor · p. 1
Protection: Short-circuit and thermal protection · p. 1
Package: WQFN, 20 pins, 4.00 mm × 4.00 mm · p. 1
Amplifier: Stereo, filter-free Class-D audio power amplifier · p. 1
Output power: WQFN: 720 mW/channel into 8 Ω at 3.6 V · p. 1
Protection: Thermal shutdown above 150°C junction temperature · p. 23

Around it

cap 1 µF: between PVDD and GND; Low-ESR ceramic supply decoupling capacitor; place as close as possible to PVDD. · p. 17
cap 4.7 µF or greater: between PVDD and GND; Optional lower-frequency supply filtering; place near the amplifier. · p. 17
cap 0.1-µF: between PVDD/AVDD and GND; Low-ESR ceramic supply decoupling; place within 2 mm of PVDD/AVDD pins. · p. 19
cap 2.2-µF to 10-µF: between PVDD/AVDD and GND; Additional supply charge reservoir on the PVDD/AVDD supply trace. · p. 19

Specifications

Parameter	Conditions	As printed	Page
Supply voltage, VSS (AVDD, PVDD) VSS	Active mode	min -0.3 · max 6 V	4
Supply voltage, VSS (AVDD, PVDD) VSS	Shutdown mode	min -0.3 · max 7 V	4
Input voltage, VI VI	Maximum is VDD + 0.3 V	min -0.3 V	4
Operating junction temperature, TJ TJ		min -40 · max 150 °C	4
Storage temperature, Tstg Tstg		min -65 · max 150 °C	4
Electrostatic discharge V(ESD)	Human-body model (HBM), per ANSI/ESDA/JEDEC JS-001; ±2000 V	max 2000 V	4
Electrostatic discharge V(ESD)	Charged-device model (CDM), per JEDEC specification JESD22-C101; ±1500 V	max 1500 V	4
Supply voltage, AVDD, PVDD VSS		min 2.5 · max 5.5 V	4
High-level input voltage, SDL, SDR, G0, G1 VIH		min 1.3 V	4
Low-level input voltage, SDL, SDR, G0, G1 VIL		max 0.35 V	4
Operating free-air temperature TA		min -40 · max 85 °C	4
Junction-to-ambient thermal resistance RθJA	RTJ (WQFN), 20 pins	typ 34.6 °C/W	4
Junction-to-case (top) thermal resistance RθJC(top)	RTJ (WQFN), 20 pins	typ 34.3 °C/W	4
Junction-to-board thermal resistance RθJB	RTJ (WQFN), 20 pins	typ 11.5 °C/W	4
Junction-to-top characterization parameter ψJT	RTJ (WQFN), 20 pins	typ 0.4 °C/W	4
Junction-to-board characterization parameter ψJB	RTJ (WQFN), 20 pins	typ 11.6 °C/W	4
Junction-to-case (bottom) thermal resistance RθJC(bot)	RTJ (WQFN), 20 pins	typ 3.2 °C/W	4
Output offset voltage (measured differentially) \|VOO\|	TA = 25°C; Inputs ac grounded, AV = 6 dB, VDD = 2.5 to 5.5 V	typ 5 · max 25 mV	5
Power supply rejection ratio PSRR	TA = 25°C; VDD = 2.5 to 5.5 V	typ -75 · max -55 dB	5
Common-mode input voltage Vicm	TA = 25°C; maximum is VDD – 0.8 V	min 0.5 V	5
Common-mode rejection ration CMRR	TA = 25°C; Inputs shorted together, VDD = 2.5 to 5.5 V	typ -69 · max -50 dB	5
High-level input current \|IIH\|	TA = 25°C; VDD = 5.5 V, VI = VDD	max 50 uA	5
Low-level input current \|IIL\|	TA = 25°C; VDD = 5.5 V, VI = 0 V	max 5 uA	5
Supply current IDD	TA = 25°C; VDD = 5.5 V, no load or output filter	typ 6 · max 9 mA	5
Supply current IDD	TA = 25°C; VDD = 3.6 V, no load or output filter	typ 5 · max 7.5 mA	5
Supply current IDD	TA = 25°C; VDD = 2.5 V, no load or output filter	typ 4 · max 6 mA	5
Supply current IDD	TA = 25°C; Shutdown mode	max 1.5 uA	5
Static drain-source on-state resistance rDS(on)	TA = 25°C; VDD = 5.5 V	typ 500 mΩ	5
Static drain-source on-state resistance rDS(on)	TA = 25°C; VDD = 3.6 V	typ 570 mΩ	5
Static drain-source on-state resistance rDS(on)	TA = 25°C; VDD = 2.5 V	typ 700 mΩ	5
Output impedance in shutdown mode	TA = 25°C; V(SDR, SDL)= 0.35 V	typ 2 kΩ	5
Switching frequency f(sw)	TA = 25°C; VDD = 2.5 V to 5.5 V	min 250 · typ 300 · max 350 kHz	5
Closed-loop voltage gain	TA = 25°C; G0, G1 = 0.35 V	min 5.5 · typ 6 · max 6.5 dB	5
Closed-loop voltage gain	TA = 25°C; G0 = VDD, G1 = 0.35 V	min 11.5 · typ 12 · max 12.5 dB	5
Closed-loop voltage gain	TA = 25°C; G0 = 0.35 V, G1 = VDD	min 17.5 · typ 18 · max 18.5 dB	5
Closed-loop voltage gain	TA = 25°C; G0, G1 = VDD	min 23.5 · typ 24 · max 24.5 dB	5
Output power (per channel) PO	TA = 25°C; RL = 8 Ω; VDD = 5 V, f = 1 kHz, THD = 10%	typ 1.4 W	5
Output power (per channel) PO	TA = 25°C; RL = 8 Ω; VDD = 3.6 V, f = 1 kHz, THD = 10%	typ 0.72 W	5
Output power (per channel) PO	TA = 25°C; RL = 4 Ω; VDD = 5 V, f = 1 kHz, THD = 10%	typ 2.1 W	5
Total harmonic distortion plus noise THD+N	TA = 25°C; RL = 8 Ω; PO = 1 W, VDD = 5 V, AV = 6 dB, f = 1 kHz	typ 0.14 %	5
Total harmonic distortion plus noise THD+N	TA = 25°C; RL = 8 Ω; PO = 0.5 W, VDD = 5 V, AV = 6 dB, f = 1 kHz	typ 0.11 %	5
Channel crosstalk	TA = 25°C; RL = 8 Ω; f = 1 kHz	typ -85 dB	5
Supply ripple rejection ratio kSVR	TA = 25°C; RL = 8 Ω; VDD = 5 V, AV = 6 dB, f = 217 Hz	typ -77 dB	5
Supply ripple rejection ratio kSVR	TA = 25°C; RL = 8 Ω; VDD = 3.6 V, AV = 6 dB, f = 217 Hz	typ -73 dB	5
Common mode rejection ratio CMRR	TA = 25°C; RL = 8 Ω; VDD = 3.6 V, VIC = 1 Vpp, f = 217 Hz	typ -69 dB	5
Input impedance	TA = 25°C; RL = 8 Ω; Av = 6 dB	typ 28.1 kΩ	5
Input impedance	TA = 25°C; RL = 8 Ω; Av = 12 dB	typ 17.3 kΩ	5
Input impedance	TA = 25°C; RL = 8 Ω; Av = 18 dB	typ 9.8 kΩ	5
Input impedance	TA = 25°C; RL = 8 Ω; Av = 24 dB	typ 5.2 kΩ	5
Start-up time from shutdown	TA = 25°C; RL = 8 Ω; VDD = 3.6 V	typ 3.5 ms	5
Output voltage noise Vn	TA = 25°C; RL = 8 Ω; VDD = 3.6 V, f = 20 to 20 kHz, inputs are ac grounded, AV = 6 dB; No weighting	typ 35 uV	5
Output voltage noise Vn	TA = 25°C; RL = 8 Ω; VDD = 3.6 V, f = 20 to 20 kHz, inputs are ac grounded, AV = 6 dB; A weighting	typ 27 uV	5
POWER RATING	RTJ; TA = 25°C	max 5.2 W	5
DERATING FACTOR	RTJ	typ 41.6 mW/°C	5
POWER RATING	RTJ; TA = 75°C	max 3.12 W	5
POWER RATING	RTJ; TA = 85°C	max 2.7 W	5

Pins, by the datasheet

1 G1: Gain select (MSB). · p. 3
2 OUTL+: Left channel positive differential output. · p. 3
3 PVDD: Power supply; must be the same voltage as AVDD. · p. 3
4 PGND: Power ground. · p. 3
5 OUTL–: Left channel negative differential output. · p. 3
6 NC: No internal connection. · p. 3
7 SDL: Left channel shutdown terminal, active low. · p. 3
8 SDR: Right channel shutdown terminal, active low. · p. 3
9 AVDD: Analog supply; must be the same voltage as PVDD. · p. 3
10 NC: No internal connection. · p. 3
11 OUTR–: Right channel negative differential output. · p. 3
12 PGND: Power ground. · p. 3
13 PVDD: Power supply; must be the same voltage as AVDD. · p. 3
14 OUTR+: Right channel positive differential output. · p. 3
15 G0: Gain select (LSB). · p. 3
16 INR+: Right channel positive input. · p. 3
17 INR–: Right channel negative input. · p. 3
18 AGND: Analog ground. · p. 3
19 INL–: Left channel negative input. · p. 3
20 INL+: Left channel positive input. · p. 3
Thermal Pad Thermal Pad: Connect the thermal pad of the WQFN package to PCB GND. · p. 3

Ordering codes, by the datasheet

TPA2012D2RTJR: QFN (RTJ) | 20 · 3000, LARGE T&R; Level-1-260C-UNLIM; -40 to 85°C · p. 25
TPA2012D2RTJR.B: QFN (RTJ) | 20 · 3000, LARGE T&R; Level-1-260C-UNLIM; -40 to 85°C · p. 25
TPA2012D2RTJRG4: QFN (RTJ) | 20 · 3000, LARGE T&R; Level-2-260C-1 YEAR; -40 to 85°C · p. 25
TPA2012D2RTJRG4.B: QFN (RTJ) | 20 · 3000, LARGE T&R; Level-2-260C-1 YEAR; -40 to 85°C · p. 25
TPA2012D2RTJT: QFN (RTJ) | 20 · 250, SMALL T&R; Level-2-260C-1 YEAR; -40 to 85°C · p. 25
TPA2012D2RTJT.B: QFN (RTJ) | 20 · 250, SMALL T&R; Level-2-260C-1 YEAR; -40 to 85°C · p. 25
TPA2012D2RTJTG4: QFN (RTJ) | 20 · 250, SMALL T&R; Level-2-260C-1 YEAR; -40 to 85°C · p. 25
TPA2012D2YZHR: DSBGA (YZH) | 16 · 3000, LARGE T&R; SNAGCU ball material; Level-1-260C-UNLIM; -40 to 85°C · p. 25
TPA2012D2YZHR.B: DSBGA (YZH) | 16 · 3000, LARGE T&R; SNAGCU ball material; Level-1-260C-UNLIM; -40 to 85°C · p. 25
TPA2012D2YZHT: DSBGA (YZH) | 16 · 250, SMALL T&R; SNAGCU ball material; Level-1-260C-UNLIM; -40 to 85°C · p. 25
TPA2012D2YZHT.B: DSBGA (YZH) | 16 · 250, SMALL T&R; SNAGCU ball material; Level-1-260C-UNLIM; -40 to 85°C · p. 25

Parameters

Class: Class D
Current - Supply: 6mA
Features: Enable/shutdown function
Frequency - Switching: 300kHz
Junction Temperature(Max): 150℃
Number of Inputs: 2 Pairs Differential Inputs
Operating Temperature: -40℃~+85℃
Output Power: 2.1Wx2@4Ω
Power Supply Rejection Ratio (PSRR): -55dB
Quiescent Current: 9mA
Speaker Channels: 2-Channel
Standby Current: 1.5uA
Thermal Resistance(Junction to Board): 11.5℃/W
Thermal Resistance(Junction to Case): 34.3℃/W
Total Harmonic Distortion + Noise (THD+N): 0.11%
Voltage - Supply: 2.5V~5.5V
Voltage - Supply(Absolute Max): 6V

Order codes

TPA2012D2RTJTLCSC C116656

Pinout

The pins of the TPA2012D2RTJT
Pin	Name	Type
1	G1	Unspecified
2	OUTL+	Unspecified
3	PVDD	Unspecified
4	PGND	Unspecified
5	OUTL-	Unspecified
6	NC	Unspecified
7	/SDL	Unspecified
8	/SDR	Unspecified
9	AVDD	Unspecified
10	NC	Unspecified
11	OUTR-	Unspecified
12	PGND	Unspecified
13	PVDD	Unspecified
14	OUTR+	Unspecified
15	G0	Unspecified
16	INR+	Unspecified
17	INR-	Unspecified
18	AGND	Unspecified
19	INL-	Unspecified
20	INL+	Unspecified
21	EP	Unspecified

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Questions

Is there a KiCad symbol and footprint for the TPA2012D2RTJT?

Yes. The symbol is EasyEDA_Cloud:TPA2012D2RTJRG4 and the footprint EasyEDA_Cloud:QFN-20_L4.0-W4.0-P0.5-TL-EP, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the TPA2012D2RTJT?

QFN-20-EP(4x4), with 21 pins. Its footprint is drawn on this page.

Where is the TPA2012D2RTJT datasheet?

Texas Instruments publishes it: the Datasheet link on this page opens it.

Where can I order the TPA2012D2RTJT?

JLCPCB lists it as part C116656, with 1 in stock; the sellers' links on this page open their listings.

What can replace the TPA2012D2RTJT?

Parts like it in the library: the TPA6130A2RTJR by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the TPA2012D2RTJT?

2 boards in 2 repositories on GitHub; the most starred are listed on this page, with their KiCad files.