# TPA6205A1DRBT

**Texas Instruments** · Audio Amplifiers · SON-8-EP(3x3)

TPA6205A1DRBT from Texas Instruments, in a SON-8-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | SHUTDOWN | input | Active-low shutdown terminal with 1.8-V compatible thresholds, where VIH is 1.15 V and VIL is 0.5 V. |
| 2 | BYPASS | passive | Mid-supply voltage node; adding a bypass capacitor here improves PSRR. |
| 3 | IN+ | input | Positive differential audio input. |
| 4 | IN- | input | Negative differential audio input. |
| 5 | VO+ | output | Positive BTL (bridge-tied load) speaker output. |
| 6 | VDD | power_in | Supply voltage terminal; recommended operating range is 2.5 V to 5.5 V and the absolute maximum is 6 V. |
| 7 | GND | power_in | High-current ground connection. |
| 8 | VO- | output | Negative BTL (bridge-tied load) speaker output. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SON-8-EP(3x3) |
| Category | Amplifiers/Comparators |
| Pins | 9 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Supply voltage | VDD | -0.3 |  | 6 | V |  | 4 |
| Input voltage, INx and SHUTDOWN pins | VI | -0.3 |  | 0.3 | V |  | 4 |
| Operating free-air temperature | TA | -40 |  | 85 | ºC |  | 4 |
| Junction temperature | TJ | -40 |  | 125 | ºC |  | 4 |
| Lead temperature |  |  |  | 260 | ºC | 1.6 mm (1/16 inch) from case for 10 seconds | 4 |
| Storage temperature | Tstg | -65 |  | 150 | °C |  | 4 |
| Supply voltage | VDD | 2.5 |  | 5.5 | V |  | 4 |
| High-level input voltage SHUTDOWN | VIH | 1.15 |  |  | V |  | 4 |
| Low-level input voltage SHUTDOWN | VIL |  |  | 0.5 | V |  | 4 |
| Common-mode input voltage | VIC | 0.5 |  |  | V | VDD = 2.5 V, 5.5 V, CMRR ≤ –60 dB | 4 |
| Operating free-air temperature | TA | -40 |  | 85 | °C |  | 4 |
| Load impedance | ZL | 6.4 | 8 |  | Ω |  | 4 |
| Power rating (DRB package) |  |  |  | 2.7 | W | TA ≤ 25°C | 6 |
| Power rating (DRB package) |  |  |  | 1.7 | W | TA ≤ 70°C | 6 |
| Power rating (DRB package) |  |  |  | 1.4 | W | TA ≤ 85°C | 6 |
| Output offset voltage | VOO |  |  | 9 | mV | VI = 0 V, VDD = 2.5 V to 5.5 V (measured differentially) | 5 |
| Power supply rejection ratio | PSRR |  | -90 | -70 | dB | VDD = 2.5 V to 5.5 V | 5 |
| Common-mode rejection ratio | CMRR |  | -70 | -65 | dB | VDD = 3.6 V to 5.5 V, VIC = 0.5 V to VDD – 0.8 | 5 |
| Common-mode rejection ratio | CMRR |  | -62 | -55 | dB | VDD = 2.5 V, VIC = 0.5 V to 1.7 V | 5 |
| Low-level output voltage | VOL |  | 0.3 | 0.46 | V | RL = 8 Ω, VIN+ = VDD, VIN– = 0 V or VIN+ = 0 V, VIN– = VDD; VDD = 5.5 V | 5 |
| Low-level output voltage | VOL |  | 0.19 | 0.26 | V | RL = 8 Ω, VIN+ = VDD, VIN– = 0 V or VIN+ = 0 V, VIN– = VDD; VDD = 2.5 V | 5 |
| High-level output voltage | VOH | 4.8 | 5.12 |  | V | RL = 8 Ω, VIN+ = VDD, VIN– = 0 V or VIN+ = 0 V, VIN– = VDD; VDD = 5.5 V | 5 |
| High-level output voltage | VOH | 2.1 | 2.24 |  | V | RL = 8 Ω, VIN+ = VDD, VIN– = 0 V or VIN+ = 0 V, VIN– = VDD; VDD = 2.5 V | 5 |
| High-level input current | IIH |  |  | 1.2 | µA | VDD = 5.5 V, VI = 5.8 V | 5 |
| Low-level input current | IIL |  |  | 1.2 | µA | VDD = 5.5 V, VI = –0.3 V | 5 |
| Supply current | IDD |  | 1.7 | 2 | mA | VDD = 2.5 V to 5.5 V, No load, SHUTDOWN = VIH | 5 |
| Supply current in shutdown mode | IDD(SD) |  | 0.01 | 0.9 | µA | SHUTDOWN = VIL, VDD = 2.5 V to 5.5 V, No load | 5 |
| Common-mode rejection ratio |  |  |  | -85 | dB | VDD = 2.5 V to 5.5 V, f = 20 Hz to 1 kHz, Resistor tolerance = 0.1%, Gain = 4 V/V, VICM = 200 mVPP | 5 |
| Common-mode rejection ratio |  |  |  | -74 | dB | VDD = 2.5 V to 5.5 V, f = 20 Hz to 20 kHz, Resistor tolerance = 0.1%, Gain = 4 V/V, VICM = 200 mVPP | 5 |
| Output impedance | ZO | 10 |  |  | kΩ | Shutdown mode | 5 |
| Supply ripple rejection ratio | kSVR |  |  | -74 | dB | C(BYPASS) = 0.47 µF, VDD = 2.5 V to 5.5 V, f = 40 Hz to 20 kHz, VRIPPLE = 200 mVPP, inputs AC-grounded, with CI = 2 µF | 5 |

## CAD (KiCad official)

- Symbol: `TPA6205A1DRBT`
- Footprint: `Package_SON:WSON-8-1EP_3x3mm_P0.5mm_EP1.6x2.0mm`
- 3D model: SON-8-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `tpa6205a1drbt-etched.step` / `tpa6205a1drbt-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpa6205a1drbt.step` / `tpa6205a1drbt.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tpa6205a1) (46 pp, sha256 `68a4c8173270bf87`, retrieved 2026-10-11, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/tpa6205a1drbt-datasheet.pdf)