PACKAGE REFERENCEHTSSOP-44Confirm case, pinout and ordering suffix before purchase.

MANUFACTURER PART RECORD

TPA3255DDV

TPA3255DDV is the tube order code of Texas Instruments’ TPA3255 PurePath Ultra-HD analog-input Class-D amplifier in HTSSOP-44 — a stereo bridge-tied-load amplifier that can also be paralleled into a mono configuration, for high-power audio designs, per TI data sheet SLASEA8A. Selection advice: the output-power figures depend on the supply, load and distortion conditions tabulated in the parameter table — design the power stage and heatsink from those rows, not from headline wattage. The DDVR sibling is the same package on tape and reel; order the carrier your line is set up for, and do not substitute the automotive Q1 variant, which is a different orderable documented separately. Parameters verified against Texas Instruments documentation.

Integrated CircuitsClass-D audio power amplifierHTSSOP-44

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MPN: TPA3255DDV
Manufacturer: Texas Instruments
Family: Class-D audio power amplifier
Package: HTSSOP-44
Manufacturer channel coverage: Checked by RFQ
Data last checked: Commercial check required
Required order checks: Suffix, package, date code, lot, source and traceability

PROCUREMENT DATA

Identity and sourcing requirements.

MANUFACTURER DATA REVIEW

Key technical specifications

Ordering-code highlights reviewed against official manufacturer documentation.

Function: PurePath Ultra-HD analog-input Class-D amplifier, stereo BTL or mono PBTL · HTSSOP-44 (DDV) with PowerPAD
Output power — stereo BTL: 315 W per channel typical into 4 Ω at 10% THD+N; 255 W per channel typical into 4 Ω at 1% THD+N (§7.6 header conditions: PVDD = 51 V, GVDD = 12 V, fS = 450 kHz, TC = 75 °C, AES17 + AUX-0025 filters)
Output power — stereo BTL, higher loads: Into 6 Ω at PVDD = 53.5 V: 250 W typical at 10% THD+N, 200 W typical at 1% THD+N; into 8 Ω at PVDD = 53.5 V: 195 W typical at 10%, 155 W typical at 1% (§7.6)
Output power — mono PBTL: 605 W typical into 2 Ω at 10% THD+N; 495 W typical into 2 Ω at 1% THD+N (§7.8 header conditions as §7.6, PBTL mode)
THD+N: 0.006% typical at 1 W, BTL (§7.6); 0.008% typical at 1 W, PBTL (§7.8)
Signal-to-noise ratio: 112 dB typical, calculated relative to the 1% THD+N output level (§7.6)
Half-bridge supply PVDD: 18 V to 53.5 V into 4 Ω loads; up to 56.5 V permitted into loads of 6 Ω or more with a reduced over-current threshold setting (§7.3)
Logic / gate-drive supplies: GVDD and VDD 10.8 V minimum / 12 V typical / 13.2 V maximum (§7.3)
On-resistance: 85 mΩ typical / 100 mΩ maximum per FET at TJ = 25 °C, GVDD = 12 V, including metallization resistance (§7.5)
Supply currents: VDD operating 30 mA typical (50% duty cycle); PVDD idle 24 mA typical per full bridge with the recommended output filter; PVDD reset mode 5 mA typical (§7.5 header conditions: PVDD = 51 V, TC = 75 °C)
Absolute maximum — power pins: PVDD_X to GND −0.3 V to +69 V; OUT_X to GND −0.3 V to +69 V (§7.1)
Absolute maximum — supplies: VDD to GND and GVDD_X to GND −0.3 V to +13.2 V; DVDD to GND −0.3 V to +4.2 V (§7.1)
Order-code package: HTSSOP (DDV), 44 pins · device marking 3255 · the DDV order code is the tube variant
Manufacturer packing: 35 pieces per tube (Package Option Addendum); the DDVR sibling code is the same package on large tape and reel at 2000 pieces
Operating temperature (orderable): 0 °C to +70 °C (Package Option Addendum)

Source: TI TPA3255 Data Sheet SLASEA8A (Rev. A) · §7.1 Absolute Maximum Ratings, §7.3 Recommended Operating Conditions, §7.5 Electrical Characteristics, §7.6 BTL Characteristics, §7.8 PBTL Characteristics, Package Option Addendum · Reviewed 2026-10-30

Sourcing note

Confirm ordering suffix, package, temperature grade, programming and date-code requirements.

Before you request a quote

DDV is the tube code
TPA3255DDV ships in tubes of 35; high-volume lines usually want TPA3255DDVR (same HTSSOP-44 package, tape and reel). State which order code the production line is set up for — the silicon and package are the same, the carrier is not.
Budget the heatsink from the table conditions
The output-power rows are measured on the data-sheet test setup at a 75 °C case temperature with the recommended output filter. Confirm the thermal design against those conditions rather than the front-page headline watts.

Official documentation

Confirm the latest manufacturer revision and ordering suffix before design-in or purchase.

Open official datasheet Manufacturer product page

QUOTE WORKFLOW

Four checks before a commercial offer.

Identity

Exact MPN, manufacturer and suffix

Supply

Supplier type, quantity and freshness

Evidence

Lot, labels, photos and documents

Terms

Price, lead time, payment and shipping

RELATED REFERENCES

Explore more Integrated Circuits records

Browse existing catalog records — same series first, then the same category and manufacturer. These are not confirmed replacements; compatibility requires engineering review.

COMMON QUESTIONS

TPA3255DDV FAQ

What are the key specifications of TPA3255DDV?

From the verified technical profile: Function: PurePath Ultra-HD analog-input Class-D amplifier, stereo BTL or mono PBTL · HTSSOP-44 (DDV) with PowerPAD; Output power — stereo BTL: 315 W per channel typical into 4 Ω at 10% THD+N; 255 W per channel typical into 4 Ω at 1% THD+N (§7.6 header conditions: PVDD = 51 V, GVDD = 12 V, fS = 450 kHz, TC = 75 °C, AES17 + AUX-0025 filters); Output power — stereo BTL, higher loads: Into 6 Ω at PVDD = 53.5 V: 250 W typical at 10% THD+N, 200 W typical at 1% THD+N; into 8 Ω at PVDD = 53.5 V: 195 W typical at 10%, 155 W typical at 1% (§7.6). These are the catalog-recorded values for TPA3255DDV — always re-check them against the manufacturer datasheet revision quoted on your BOM before finalizing the design.

What should I check before substituting TPA3255DDV with another Class-D audio power amplifier?

Match the full ordering code, not the series name: package (HTSSOP-44), temperature grade and packing all ride on the suffixes. A same-series code in a different package is a different orderable device, so confirm the substitute against the Texas Instruments datasheet before changing the BOM.