TPS2811P Equivalent & Substitute Parts

Part Overview

The TPS2811P is a low-side gate driver IC manufactured by Texas Instruments, designed for driving N-channel MOSFETs in synchronous applications. This 8-PDIP through-hole component operates across a 4V to 14V supply range with inverting input logic and dual-channel configuration. The TPS2811P is currently in Last Time Buy status, indicating end-of-life production. Identifying qualified substitute parts is essential for design continuity and long-term supply chain reliability.

Substiute Parts

TPS2811P

Texas InstrumentsIn Stock: 2028TPS2811P Datasheet

Current PartRFQ

TPS2811PWR

Texas InstrumentsIn Stock: 3440TPS2811PWR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TPS2811P is determined by strict equivalence across the following electrical and mechanical parameters:

• Driven Configuration: Must be Low-Side
• Number of Drivers: Must be 2 channels
• Gate Type: Must be N-Channel MOSFET
• Supply Voltage Range: Must support 4V ~ 14V
• Logic Voltage Thresholds: Must match VIL = 1V, VIH = 4V
• Peak Output Current: Must provide 2A source and 2A sink capability
• Input Logic: Must be Inverting
• Rise/Fall Time Performance: Must match 14ns rise, 15ns fall (typical)
• Operating Temperature Range: Must support -40°C ~ 125°C

The TPS2811PWR qualifies as a direct electrical equivalent, maintaining identical functional specifications while differing only in packaging format (Surface Mount 8-TSSOP versus Through Hole 8-PDIP).

Parameter Comparison

Engineering Selection Recommendations

The TPS2811PWR is the qualified substitute for the TPS2811P based on the following criteria:

Electrical Equivalence: Both parts share identical functional specifications across all critical parameters including supply voltage range, output current capability, logic thresholds, and timing characteristics. No functional degradation occurs with substitution.

Compliance Status: Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for equivalent applications.

Supply Chain Advantage: The TPS2811PWR carries Active product status with 3418 units in stock, compared to the TPS2811P's Last Time Buy status with limited availability. Transition to the TPS2811PWR ensures long-term supply continuity.

Design Consideration: Substitution requires PCB layout modification due to packaging format change from through-hole 8-DIP to surface-mount 8-TSSOP. The footprint dimensions differ significantly (0.300" versus 0.173" width), necessitating board redesign for mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can the TPS2811PWR directly replace the TPS2811P without circuit modification?

A: Electrical substitution is direct and requires no circuit changes. However, PCB layout modification is mandatory due to different mounting types and package footprints. The through-hole 8-DIP and surface-mount 8-TSSOP formats are mechanically incompatible on the same board design.

Q: What are the key parameters that define substitution eligibility?

A: Substitution is determined by equivalence in driven configuration (Low-Side), number of drivers (2), gate type (N-Channel MOSFET), supply voltage range (4V ~ 14V), logic voltage thresholds (1V/4V), peak output current (2A/2A), input logic type (Inverting), and operating temperature range (-40°C ~ 125°C). All parameters must match exactly.

Q: Why is the TPS2811P being phased out?

A: The TPS2811P is in Last Time Buy status, indicating Texas Instruments has discontinued production. The TPS2811PWR surface-mount variant represents the active product line continuation, offering improved manufacturing efficiency and supply chain reliability.

Q: Are there any performance differences between the two parts?

A: No. Both parts deliver identical electrical performance with matching rise/fall times (14ns/15ns), output current capability (2A source/sink), and operating specifications. Differences are limited to packaging format and product lifecycle status.

Q: What is the moisture sensitivity level difference?

A: The TPS2811P lists MSL as Not Applicable (through-hole component). The TPS2811PWR specifies MSL 1 (Unlimited), indicating standard surface-mount handling requirements with no moisture sensitivity constraints.