Overview
The TPA3136D2PWPR, produced by Texas Instruments, is an efficient Class-D audio power amplifier designed for driving bridged-tied stereo speakers. This device is capable of delivering up to 10 W per channel into 6-Ω or 8-Ω loads, making it suitable for a variety of audio applications. The TPA3136D2PWPR features advanced EMI suppression technology with a spread spectrum control scheme, which allows for the use of inexpensive ferrite bead filters while meeting EMC requirements. This amplifier also includes robust protection mechanisms such as SpeakerGuard™ speaker protection, short-circuit protection, and thermal protection, ensuring reliable operation and speaker safety.
Key Specifications
| Parameter | Value |
|---|---|
| Part Number | TPA3136D2PWPR |
| Package | 28-HTSSOP (PWP) |
| Number of Pins | 28 |
| Output Type | 2-Channel (Stereo) |
| Max Output Power x Channels @ Load | 10W x 2 @ 8Ω |
| Voltage - Supply | 4.5V ~ 14.4V |
| Operating Temperature Range | -40°C to 85°C |
| Efficiency | Up to 90% with 8-Ω load |
| THD+N | <0.05% at 1 W/4 Ω/1 kHz |
| Fixed Gain | 26 dB |
| Input Type | Single-ended or differential analog inputs |
Key Features
- High efficiency Class-D operation, up to 90% efficient with 8-Ω loads, eliminating the need for heat sinks.
- Inductor-free operation.
- Enhanced EMI performance with spread spectrum control scheme.
- SpeakerGuard™ speaker protection includes power limiter and DC detection circuit.
- Robust pin-to-pin, pin-to-ground, and pin-to-power short circuit protection and thermal protection with auto recovery feature.
- Click and pop free startup.
- Wide supply voltage range from 4.5 V to 14.4 V.
- Single-ended or differential analog inputs.
- Capable of driving stereo speakers with as low as 4-Ω impedance.
Applications
- Televisions
- Bluetooth and wireless speakers
- Mini speakers
- USB speakers
- Consumer audio equipment
Q & A
- What is the maximum output power of the TPA3136D2PWPR?
The TPA3136D2PWPR can deliver up to 10 W per channel into 6-Ω or 8-Ω loads.
- What is the operating temperature range of the TPA3136D2PWPR?
The operating temperature range is -40°C to 85°C.
- Does the TPA3136D2PWPR require an external heat sink?
No, the high efficiency of the amplifier, up to 90% with 8-Ω loads, eliminates the need for an external heat sink.
- What type of input does the TPA3136D2PWPR support?
The TPA3136D2PWPR supports single-ended or differential analog inputs.
- What protection mechanisms are included in the TPA3136D2PWPR?
The device includes SpeakerGuard™ speaker protection, short-circuit protection, thermal protection, and DC detection circuit.
- What is the fixed gain of the TPA3136D2PWPR?
The fixed gain is 26 dB.
- Can the TPA3136D2PWPR drive speakers with low impedance?
- What is the supply voltage range of the TPA3136D2PWPR?
The supply voltage range is from 4.5 V to 14.4 V.
- Does the TPA3136D2PWPR have EMI suppression features?
- Is the startup of the TPA3136D2PWPR click and pop free?
