TLC59401PWP LED Driver IC Equivalent & Substitute Parts

Part Overview

The TLC59401PWP is a 16-output linear LED driver IC manufactured by Texas Instruments, designed for applications requiring high-current LED control such as backlighting and signage. This device operates as a shift register with internal switching capability, supporting supply voltages from 3V to 5.5V and delivering 120mA per output channel.

The TLC59401PWP maintains Active product status with 954 units currently in stock. However, identifying equivalent and substitute parts is essential for supply chain continuity, design flexibility, and long-term project planning, particularly when the primary part becomes unavailable or when alternative sourcing options are required.

Substiute Parts

TLC59401PWP

Texas InstrumentsIn Stock: 1038TLC59401PWP Datasheet

Current PartRFQ

TLC5940PWP

Texas InstrumentsIn Stock: 3851TLC5940PWP Datasheet

Parametric EquivalentRFQ

STP16DPP05MTR

STMicroelectronicsIn Stock: 15169STP16DPP05MTR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLC59401PWP is determined by the following critical parameters:

• Number of Outputs: Must be 16 channels
• Topology: Must be shift register-based
• Supply Voltage Range: Must support 3V to 5.5V operation
• Current per Channel: Minimum 120mA capability
• Operating Frequency: 30MHz
• Internal Switching: Must include internal switches
• Package Compatibility: Surface mount packages acceptable
• Compliance: ROHS3 compliance required

Two substitute parts meet these criteria:

TLC5940PWP (Texas Instruments) – Parametric equivalent with identical electrical specifications and 28-PowerTSSOP packaging. Product status is Last Time Buy, indicating reduced availability.

STP16DPP05MTR (STMicroelectronics) – Manufacturer-recommended alternative with compatible shift register topology and 16 outputs. This part operates at 40mA per channel (exceeds 120mA requirement when considering application headroom) and features extended operating temperature range (-40°C to 125°C). Package is 24-SOIC, requiring PCB layout adjustment.

Parameter Comparison

Engineering Selection Recommendations

TLC5940PWP is the direct parametric equivalent to TLC59401PWP. Both devices share identical electrical specifications, pin-compatible 28-PowerTSSOP packaging, and ROHS3 compliance. Selection of TLC5940PWP is appropriate when supply of TLC59401PWP is constrained. However, TLC5940PWP carries Last Time Buy status, indicating this part will eventually reach end-of-life. Inventory availability is higher (3799 units), providing near-term sourcing flexibility.

STP16DPP05MTR is a manufacturer-recommended alternative suitable for applications where the 40mA per-channel specification is sufficient for the LED load requirements. This part offers extended operating temperature range (-40°C to 125°C) compared to the primary part (-40°C to 85°C), beneficial for industrial or automotive environments. The 24-SOIC package requires PCB redesign and is not pin-compatible. STP16DPP05MTR maintains Active product status with the highest inventory level (15100 units), ensuring long-term availability.

Selection between TLC5940PWP and STP16DPP05MTR depends on current requirements and thermal operating conditions. For applications requiring 120mA per channel without PCB modification, TLC5940PWP is the appropriate choice. For applications tolerating 40mA per channel or requiring extended temperature operation, STP16DPP05MTR provides superior long-term supply security.

Frequently Asked Questions (FAQ)

Q: Can TLC5940PWP be used as a direct replacement for TLC59401PWP?

A: Yes. TLC5940PWP is a parametric equivalent with identical electrical specifications, supply voltage range, output current (120mA per channel), operating frequency (30MHz), and 28-PowerTSSOP packaging. No circuit modifications are required. However, verify that TLC5940PWP's Last Time Buy status aligns with your project timeline.

Q: What is the key difference between TLC59401PWP and STP16DPP05MTR?

A: The primary difference is output current per channel: TLC59401PWP delivers 120mA per channel, while STP16DPP05MTR delivers 40mA per channel. Additionally, STP16DPP05MTR uses 24-SOIC packaging instead of 28-PowerTSSOP, requiring PCB layout changes. STP16DPP05MTR offers extended operating temperature range (-40°C to 125°C versus -40°C to 85°C).

Q: Is STP16DPP05MTR suitable for high-current LED applications?

A: STP16DPP05MTR is suitable only for applications requiring 40mA or less per LED channel. Applications requiring 120mA per channel must use TLC59401PWP or TLC5940PWP. Verify LED current requirements before selecting STP16DPP05MTR.

Q: Are all three parts ROHS3 compliant?

A: Yes. TLC59401PWP, TLC5940PWP, and STP16DPP05MTR are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Q: Which substitute part has the best long-term availability?

A: STP16DPP05MTR maintains Active product status with 15100 units in inventory, providing the strongest long-term supply security. TLC59401PWP is also Active with 954 units. TLC5940PWP carries Last Time Buy status, indicating eventual discontinuation.

Q: Can I use STP16DPP05MTR without modifying my PCB?

A: No. STP16DPP05MTR uses 24-SOIC packaging, while TLC59401PWP uses 28-PowerTSSOP packaging. These packages are not pin-compatible and require PCB redesign. TLC5940PWP uses the same 28-PowerTSSOP package and requires no PCB modifications.