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TPA2001D1

ACTIVE

1-W, mono, analog input Class-D audio amplifier with short-circuit protection

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Data sheet

TPA2001D1

ACTIVE
Data sheet Order now

Product details

Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 Load (min) (Ω) 8 Output power (W) 1 SNR (dB) 95 THD + N at 1 kHz (%) 0.1 Iq (typ) (mA) 4 Control interface GPIO Closed/open loop Closed Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 72 Operating temperature range (°C) -40 to 85
Audio input type Analog Input Architecture Class-D Speaker channels (max) Mono Rating Catalog Power stage supply (max) (V) 5.5 Power stage supply (min) (V) 2.5 Load (min) (Ω) 8 Output power (W) 1 SNR (dB) 95 THD + N at 1 kHz (%) 0.1 Iq (typ) (mA) 4 Control interface GPIO Closed/open loop Closed Analog supply (min) (V) 2.5 Analog supply voltage (max) (V) 5.5 PSRR (dB) 72 Operating temperature range (°C) -40 to 85
TSSOP (PW) 16 32 mm² 5 x 6.4
  • Modulation Scheme Optimized to Operate Without a Filter
  • TSSOP Package Options
  • 1 W Into an 8- Speaker (THD+N<1%)
  • <0.2% THD+N at 1 W, 1 kHz, Into an 8- Load
  • Extremely Efficient Third Generation 5-V Class-D Technology:
    • Low-Supply Current (No Filter) ...4 mA
    • Low-Supply Current (Filter) . . . 7.5 mA
    • Low-Shutdown Current . . . 0.05 µA
    • Low-Noise Floor ...40 µVRMS (No-Weighting Filter)
    • Maximum Efficiency Into 8 , 75 – 85%
    • 4 Internal Gain Settings ...6 – 23.5 dB
    • PSRR . . . –77 dB
  • Integrated Depop Circuitry
  • Short-Circuit Protection (Short to Battery, Ground, and Load)
  • Modulation Scheme Optimized to Operate Without a Filter
  • TSSOP Package Options
  • 1 W Into an 8- Speaker (THD+N<1%)
  • <0.2% THD+N at 1 W, 1 kHz, Into an 8- Load
  • Extremely Efficient Third Generation 5-V Class-D Technology:
    • Low-Supply Current (No Filter) ...4 mA
    • Low-Supply Current (Filter) . . . 7.5 mA
    • Low-Shutdown Current . . . 0.05 µA
    • Low-Noise Floor ...40 µVRMS (No-Weighting Filter)
    • Maximum Efficiency Into 8 , 75 – 85%
    • 4 Internal Gain Settings ...6 – 23.5 dB
    • PSRR . . . –77 dB
  • Integrated Depop Circuitry
  • Short-Circuit Protection (Short to Battery, Ground, and Load)

The TPA2001D1 is a 1-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 8- impedance. The amplifier uses TI’s third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at the system level). These features make the device ideal for use in devices where high-efficiency is needed to extend battery run time.

The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs, and can be used as summing nodes.

The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up, and when cycling SHUTDOWN\.

The TPA2001D1 is available in the 16-pin TSSOP package that drives 1 W of continuous output power into an 8- load. TPA2001D1 operates over an ambient temperature range of –40°C to 85°C.

The TPA2001D1 is a 1-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 8- impedance. The amplifier uses TI’s third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at the system level). These features make the device ideal for use in devices where high-efficiency is needed to extend battery run time.

The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs, and can be used as summing nodes.

The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up, and when cycling SHUTDOWN\.

The TPA2001D1 is available in the 16-pin TSSOP package that drives 1 W of continuous output power into an 8- load. TPA2001D1 operates over an ambient temperature range of –40°C to 85°C.
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Technical documentation

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Type Title Date
* Data sheet 1-W Filterless Mono Class-D Audio Power Amplifier datasheet (Rev. D) 09 Dec 2002
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) 26 Aug 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) 27 Jun 2019
Application note AN-1737 Managing EMI in Class D Audio Applications (Rev. A) 01 May 2013
Application note Measuring Class-D Amplifiers for Audio Speaker Overstress Testing 28 Oct 2005
User guide TPA2001D1EVM - User Guide (Rev. B) 30 Mar 2001

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