| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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200,000 pcs
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200000 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request | |
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168 pcs
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168 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The TPA731D from Texas Instruments is a bridge-tied load (BTL) audio power amplifier optimized for low-voltage applications requiring internal speakers. It operates with a wide power supply range of 2.5 V to 5.5 V.
This amplifier can deliver 700 mW of continuous power into an 8 Ω load when operating at 5 V, and 250 mW at 3.3 V, with a THD+N of less than 0.5% at 1 kHz. The BTL configuration eliminates the need for external output coupling capacitors, which is beneficial for small, battery-powered devices.
The TPA731D features a shutdown mode that reduces supply current to a mere 1.5 nA, making it suitable for power-sensitive applications. It also includes thermal and short-circuit protection.
Available in surface-mount SOIC and PowerPAD MSOP packages, the TPA731D offers compact solutions for space-constrained designs. The PowerPAD MSOP package, in particular, reduces board space by 50% and height by 40% compared to standard packages.
| Qty | Low | High |
|---|---|---|
| 1+ | $1.38 | $1.38 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The TPA731D provides 700 mW of output power into an 8 Ohm load when operating at a 5V supply.
The TPA731D provides 250 mW of output power into an 8 Ohm load when operating at a 3.3V supply.
The TPA731D operates with a wide supply voltage range from 2.5 V to 5.5 V.
The TPA731D has a THD + N of 0.5% at 1 kHz.
The minimum load impedance for the TPA731D is 8 Ohms.
The TPA731D operates within a temperature range of -40°C to 85°C.
In shutdown mode, the TPA731D has an ultralow supply current of 1.5 nA.