PCA9552D,112 LED Driver IC - Equivalent & Substitute Parts

Part Overview

The PCA9552D,112 is a 16-output LED driver IC manufactured by NXP USA Inc., designed for power switch applications with 25mA per-channel output capability. This component operates across a 2.3V to 5.5V supply range and is housed in a 24-SO surface mount package. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

PCA9552D,112

NXP USA Inc.In Stock: 1225PCA9552D,112 Datasheet

Current PartRFQ

STP16DP05TTR

STMicroelectronicsIn Stock: 31173STP16DP05TTR Datasheet

MFR RecommendedRFQ

TC62D723FNG,C,EL

Toshiba Semiconductor and StorageIn Stock: 11055TC62D723FNG,C,EL Datasheet

MFR RecommendedRFQ

TLC59283RGER

Texas InstrumentsIn Stock: 62444TLC59283RGER Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PCA9552D,112 is determined by the following critical parameters:

• Number of Outputs: All substitute parts maintain 16 output channels, matching the original architecture
• Supply Voltage Range: Substitute parts operate within 3V to 5.5V, which overlaps the upper range of the original part (2.3V minimum is not matched by substitutes)
• Output Type: The original part uses power switch topology; substitutes employ linear topology with shift register architecture, representing a functional shift in output control method
• Package Compatibility: Substitute parts use different surface mount packages (24-TSSOP and 24-VQFN) compared to the original 24-SOIC, requiring PCB layout modifications
• Current Capability: Substitute parts offer higher per-channel current ratings (45mA to 100mA) compared to the original 25mA specification
• Product Status: All substitute parts are classified as active, ensuring ongoing availability and manufacturing support

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts are classified as active products with ROHS3 compliance, ensuring regulatory alignment and long-term manufacturing availability. Selection among substitutes depends on application-specific requirements:

STP16DP05TTR (STMicroelectronics) provides the highest per-channel current capability at 100mA and extended operating temperature range to 125°C, suitable for applications requiring maximum thermal headroom and higher output drive capability.

TC62D723FNG,C,EL (Toshiba) offers 90mA per-channel output with an exposed pad package for improved thermal dissipation, maintaining the same operating temperature range as the original part.

TLC59283RGER (Texas Instruments) delivers 45mA per-channel output in a compact 24-VQFN package with the smallest footprint, appropriate for space-constrained designs where output current requirements do not exceed 45mA per channel.

All substitutes require PCB layout redesign due to package changes from 24-SOIC to either 24-TSSOP or 24-VQFN formats. The shift from power switch to linear topology with shift register architecture necessitates firmware or control logic modifications to accommodate the new output control methodology.

Frequently Asked Questions (FAQ)

Q: Why is the PCA9552D,112 being replaced? A: The PCA9552D,112 is classified as obsolete by the manufacturer. Substitute parts are active products with guaranteed ongoing availability and manufacturing support.

Q: Can substitute parts directly replace the original in existing PCB designs? A: No. All substitute parts use different surface mount packages (24-TSSOP or 24-VQFN versus the original 24-SOIC), requiring PCB layout modifications. Additionally, the shift from power switch to linear topology requires control logic adjustments.

Q: What is the minimum supply voltage for substitute parts? A: All substitute parts require a minimum supply voltage of 3V, compared to the original part's 2.3V minimum. Applications operating below 3V cannot use these substitutes.

Q: Do all substitute parts maintain 16 output channels? A: Yes. All three substitute parts provide 16 output channels, matching the original architecture.

Q: Which substitute offers the highest output current per channel? A: The STP16DP05TTR provides 100mA per channel, the highest among the three substitutes, compared to the original 25mA specification.

Q: Are there thermal considerations when selecting a substitute? A: Yes. The TC62D723FNG,C,EL and TLC59283RGER include exposed pad packages for improved thermal dissipation. The STP16DP05TTR supports operation to 125°C, providing extended thermal margin compared to the 85°C limit of other options.

Q: What is the moisture sensitivity difference between substitutes? A: The STP16DP05TTR and TC62D723FNG,C,EL have MSL 1 (unlimited shelf life), while the TLC59283RGER has MSL 2 (1-year shelf life), requiring more stringent storage and handling protocols.