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Product Detailed Parameters
- Description：IC AMP CLASS D MONO 1.45W 15BGA
- Series：-
- Mfr：Texas Instruments
- Package：Tape & Reel (TR),Cut Tape (CT),Bulk
- Type：Class D
- Output Type：1-Channel (Mono)
- Max Output Power x Channels @ Load：1.45W x 1 @ 8Ohm
- Voltage - Supply：2.5V ~ 5.5V
- Features：Differential Inputs, Short-Circuit and Thermal Protection, Shutdown
- Mounting Type：Surface Mount
- Supplier Device Package：15-BGA MICROSTAR JUNIOR (2.5x2.5)
- Package / Case：15-VFBGA
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The TPA2005D1GQYR is a 1.4-W mono filter-free Class-D audio power amplifier in a MicroStar Junior BGA package. It operates on a 2.5-V to 5.5-V supply and delivers 1.4 W into an 8-Ω load at 5 V with 10% THD. Efficiency reaches 84% at 400 mW output. The device requires only three external components, features a 250-kHz switching frequency, and includes short-circuit and thermal protection.
Feature Summary
- Filter-free design utilizing optimized PWM output stage
- Fully differential architecture for improved RF immunity
- Fast startup time of 9 ms with minimal pop noise
- Integrated short-circuit and thermal protection
Applications
- Wireless or cellular handsets
- Personal digital assistants (PDAs)
- Earpiece and speaker phone drivers
- Melody ringer applications
Procurement Notes
Verify the GQY suffix corresponds to the 15-pin MicroStar Junior BGA package. Confirm the component meets RoHS standards and matches the specified operating temperature range of -40°C to 85°C. Ensure the ordering information aligns with the manufacturer's current production data sheet.
Selection Notes
Select this amplifier for portable devices requiring high efficiency and minimal PCB area. It supports both 4-Ω and 8-Ω speakers within specific voltage limits. The fully differential input eliminates coupling capacitors, while the internal oscillator removes the need for external timing components.
Part Context
This component belongs to the TPA200xDx series of filter-free Class-D amplifiers by Texas Instruments. It is designed specifically for space-constrained mobile applications where battery life and heat dissipation are critical constraints.
Replacement Considerations
The TPA2006D1 serves as a compatible alternative offering 1.8-V logic compatibility on the shutdown pin.
FAQ
Does the TPA2005D1 require an output LC filter?
No, the optimized PWM output stage eliminates the need for an LC output filter.
What is the quiescent current consumption?
The quiescent current is typically 2.8 mA at a 3.6-V supply.
