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TAS5414ATPHDQ1 Equivalent & Substitute Parts
Part Overview
The TAS5414ATPHDQ1 is a Class D audio amplifier integrated circuit manufactured by Texas Instruments, configured as a 4-channel (quad) amplifier in a 64-HTQFP surface mount package. This device delivers 116W output power across two channels at 2-ohm load impedance, or 58W across four channels at 4-ohm load impedance, with an operating supply voltage range of 8V to 22V. The part integrates protection features including depop, I2C control, mute functionality, short-circuit protection, thermal protection, and shutdown capability. The TAS5414ATPHDQ1 is designated as Last Time Buy, indicating that Texas Instruments has discontinued this part number. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production and field replacements.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Category | Linear, Amplifiers |
| Amplifier Type | Class D |
| Output Configuration | 4-Channel (Quad) |
| Max Output Power @ 2Ω | 116W x 2 channels |
| Max Output Power @ 4Ω | 58W x 4 channels |
| Supply Voltage Range | 8V ~ 22V |
| Operating Temperature | -40°C ~ 105°C |
| Mounting Type | Surface Mount |
| Package Type | 64-HTQFP (14x14) |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| RoHS Status | ROHS3 Compliant |
| MSL Rating | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitution of the TAS5414ATPHDQ1 is determined by the following critical parameters: amplifier type (Class D), output channel configuration (4-channel quad), mounting technology (surface mount), supply voltage compatibility, output power capability, operating temperature range, and automotive-grade qualification status.
Two substitute parts are identified:
TAS5414CTPHDRQ1 maintains identical package geometry (64-HTQFP), channel configuration (quad), amplifier type (Class D), and automotive qualification (AEC-Q100). This part shares the same base product number (TAS5414) and is currently in Active product status. The primary differences are expanded supply voltage range (6V ~ 24V versus 8V ~ 22V) and modified output power specifications (23W x 4 @ 4Ω, 150W x 2 @ 2Ω versus 116W x 2 @ 2Ω, 58W x 4 @ 4Ω).
TPA6304QDDVRQ1 is a Class D quad amplifier from Texas Instruments with different package geometry (44-HTSSOP versus 64-HTQFP) and reduced output power capability (55W x 4 @ 4Ω). This part is currently in Active product status and operates across a supply voltage range of 4.5V ~ 18V with an extended operating temperature range (-40°C ~ 125°C). The TPA6304QDDVRQ1 does not carry automotive qualification.
Parameter Comparison
| Parameter | TAS5414ATPHDQ1 (Main) | TAS5414CTPHDRQ1 (Substitute) | TPA6304QDDVRQ1 (Substitute) |
|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Category | Linear, Amplifiers | Linear, Amplifiers | Linear, Amplifiers |
| Amplifier Type | Class D | Class D | Class D |
| Output Configuration | 4-Channel (Quad) | 4-Channel (Quad) | 4-Channel (Quad) |
| Max Output Power @ 2Ω | 116W x 2 | 150W x 2 | Not specified |
| Max Output Power @ 4Ω | 58W x 4 | 23W x 4 | 55W x 4 |
| Supply Voltage Range | 8V ~ 22V | 6V ~ 24V | 4.5V ~ 18V |
| Operating Temperature | -40°C ~ 105°C | -40°C ~ 105°C | -40°C ~ 125°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Package Type | 64-HTQFP (14x14) | 64-HTQFP (14x14) | 44-HTSSOP |
| Grade | Automotive | Automotive | Not specified |
| Qualification | AEC-Q100 | AEC-Q100 | Not specified |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Not applicable |
| MSL Rating | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Last Time Buy | Active | Active |
Engineering Selection Recommendations
TAS5414CTPHDRQ1 is the primary substitute for the TAS5414ATPHDQ1 in applications requiring automotive-grade qualification and AEC-Q100 compliance. Both parts share identical package geometry, enabling direct PCB layout compatibility without redesign. The TAS5414CTPHDRQ1 maintains the same operating temperature range and protective features (depop, I2C, mute, short-circuit and thermal protection, shutdown). The expanded supply voltage range (6V ~ 24V) provides greater design flexibility. Output power specifications differ; the TAS5414CTPHDRQ1 delivers 150W at 2-ohm load (versus 116W) and 23W at 4-ohm load (versus 58W). Component selection must account for these power delivery differences relative to system load impedance requirements.
TPA6304QDDVRQ1 is suitable as a substitute only in non-automotive applications where AEC-Q100 qualification is not required. This part operates across a narrower supply voltage range (4.5V ~ 18V) and features an extended operating temperature range (-40°C ~ 125°C). The 44-HTSSOP package requires PCB layout modification compared to the 64-HTQFP footprint. Output power at 4-ohm load (55W x 4) falls between the specifications of the two TAS5414 variants. The TPA6304QDDVRQ1 does not carry automotive-grade designation or AEC-Q100 qualification.
Frequently Asked Questions (FAQ)
Q: Can the TAS5414CTPHDRQ1 be used as a direct replacement for the TAS5414ATPHDQ1 without PCB modification?
A: Yes. Both parts use the 64-HTQFP (14x14) package with identical pin assignments and footprint geometry. No PCB layout changes are required. However, circuit design must account for the different output power specifications at specified load impedances.
Q: What is the primary reason for substituting the TAS5414ATPHDQ1?
A: The TAS5414ATPHDQ1 is designated Last Time Buy by Texas Instruments, indicating production discontinuation. The TAS5414CTPHDRQ1 is the recommended substitute as it maintains automotive qualification and AEC-Q100 compliance while remaining in Active product status.
Q: Is the TPA6304QDDVRQ1 suitable for automotive applications?
A: No. The TPA6304QDDVRQ1 does not carry automotive-grade designation or AEC-Q100 qualification. This part is suitable only for consumer and industrial applications where automotive compliance is not required.
Q: What are the key differences in output power between the TAS5414ATPHDQ1 and TAS5414CTPHDRQ1?
A: At 2-ohm load impedance, the TAS5414CTPHDRQ1 delivers 150W across two channels compared to 116W for the TAS5414ATPHDQ1. At 4-ohm load impedance, the TAS5414CTPHDRQ1 delivers 23W across four channels compared to 58W for the TAS5414ATPHDQ1. System design must account for these power delivery differences.
Q: Does the TPA6304QDDVRQ1 require PCB redesign?
A: Yes. The TPA6304QDDVRQ1 uses a 44-HTSSOP package, which differs from the 64-HTQFP package of the TAS5414ATPHDQ1. PCB layout modification is required to accommodate the different package footprint and pin count.
Q: Are all three parts RoHS compliant?
A: The TAS5414ATPHDQ1 and TAS5414CTPHDRQ1 are ROHS3 compliant. The TPA6304QDDVRQ1 has RoHS status listed as Not applicable.
Q: What is the supply voltage compatibility range for each part?
A: The TAS5414ATPHDQ1 operates at 8V ~ 22V. The TAS5414CTPHDRQ1 operates at 6V ~ 24V, providing a wider range. The TPA6304QDDVRQ1 operates at 4.5V ~ 18V, which overlaps with the original part but does not extend to the full 22V maximum.
Q: Do all substitute parts include the same protection features as the TAS5414ATPHDQ1?
A: The TAS5414CTPHDRQ1 includes identical protection features: depop, I2C, mute, short-circuit protection, thermal protection, and shutdown. The TPA6304QDDVRQ1 does not list specific protection features in the provided specifications.
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