TDA1517ATW/N1,112

Overview

The TDA1517ATW is a Class-AB power amplifier in an HTSSOP20 package. It supports BTL (8 W at 8 Ω) or SE (4 W at 4 Ω) configurations. Supply voltage ranges from 6 V to 18 V. Quiescent current is typically 40 mA, with standby current under 100 μA. Gain is fixed at 20 dB for SE and 26 dB for BTL. THD is 0.1% at 1 W output. Ripple rejection is 46 dB (SE) and 50 dB (BTL). Noise is 50 μV (SE) and 70 μV (BTL). Operating temperature spans -40 °C to +85 °C.

Feature Summary

• Configurable as mono Bridge-Tied Load or stereo Single-Ended amplifier
• Integrated mode select switch for operating, mute, and standby functions
• Built-in protection against AC/DC short-circuits, thermal overload, and reverse polarity
• Optimized for multimedia applications with minimal external component requirements

Applications

• Multimedia audio systems
• Bridge-Tied Load speaker configurations
• Single-Ended stereo amplifier designs

Procurement Notes

Verify the specific ordering suffix (e.g., /N1,112) against the manufacturer's latest documentation to confirm packaging details and compliance status. Confirm availability as product status may change. Ensure design compatibility with the specified HTSSOP20 exposed pad thermal requirements.

Selection Notes

Select this device for designs requiring flexible mono or stereo topologies within a compact surface-mount footprint. The integrated mode control simplifies system power management logic. Verify that the required output power aligns with the 8 W BTL or 4 W SE capabilities under the target supply voltage and load impedance conditions.

Part Context

This component belongs to the TDA151 series of audio amplifiers manufactured by NXP Semiconductors. It is designed primarily for multimedia applications where high output power and low offset voltage are critical. The device utilizes a plastic heatsink thin shrink small outline package to facilitate efficient thermal dissipation.

Replacement Considerations

Consult official replacement lists for verified substitutes. Generic cross-references should be validated against pinout and electrical specifications before implementation.

FAQ

How does the MODE pin control the operational state?

The MODE pin controls three states: Standby (0–2 V), Mute (3.3–6.4 V), and Operating (8.5 V to VP). This allows low-cost switching via microcontrollers.

What is the purpose of the SVRR pin?

The SVRR pin improves supply voltage ripple rejection. In single-ended applications, connecting a capacitor here reduces noise on the midrail voltage.