PCA9553D/01,112 Equivalent & Substitute Parts

Part Overview

The PCA9553D/01,112 is a 4-output linear LED driver IC with I2C dimming control, manufactured by NXP Semiconductors. This device operates across a 2.3V to 5.5V supply range and delivers 25mA per output channel at 400kHz frequency. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing design support and production continuity.

Substiute Parts

PCA9553D/01,112

NXP SemiconductorsIn Stock: 1054PCA9553D/01,112 Datasheet

Current PartRFQ

PCA9553DP/01,118

NXP USA Inc.In Stock: 1043PCA9553DP/01,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PCA9553D/01,112 is determined by strict alignment of the following electrical and mechanical parameters:

• Number of outputs: 4 channels
• Output current per channel: 25mA
• Supply voltage range: 2.3V to 5.5V
• Frequency: 400kHz
• Dimming interface: I2C
• Operating temperature range: -40°C ~ 85°C
• Base product number: PCA9553
• RoHS and REACH compliance status

The PCA9553DP/01,118 qualifies as a direct substitute based on identical electrical specifications and compliance certifications. The primary difference is packaging format: the substitute uses 8-TSSOP instead of 8-SOIC, requiring PCB layout adjustment but maintaining full functional compatibility.

Parameter Comparison

Engineering Selection Recommendations

The PCA9553DP/01,118 is the qualified substitute for the obsolete PCA9553D/01,112. Both components maintain identical electrical performance across all critical parameters: 4-channel output configuration, 25mA per-channel current delivery, 2.3V to 5.5V supply voltage range, 400kHz operating frequency, and I2C dimming interface.

The substitute part carries Active product status, ensuring long-term availability and manufacturing support. Both components meet ROHS3 compliance and REACH unaffected status, maintaining regulatory alignment for production environments.

The packaging transition from 8-SOIC to 8-TSSOP represents the only design consideration. The 8-TSSOP package features a narrower body width (3.00mm versus 3.90mm), requiring PCB footprint and layout modifications. Pin configuration and electrical interface remain functionally equivalent.

Frequently Asked Questions (FAQ)

Q: Can the PCA9553DP/01,118 directly replace the PCA9553D/01,112 without design changes?

A: Electrical functionality is fully compatible. PCB layout modification is required due to package geometry differences. The 8-TSSOP footprint differs from the 8-SOIC footprint in body width and pin spacing.

Q: What is the primary reason for substitution?

A: The PCA9553D/01,112 is classified as obsolete. The PCA9553DP/01,118 maintains identical electrical specifications while offering active product status and guaranteed supply continuity.

Q: Are there compliance differences between the two parts?

A: No. Both components are ROHS3 compliant, REACH unaffected, and carry identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: How do the package dimensions affect component selection?

A: The 8-TSSOP package (3.00mm width) is narrower than the 8-SOIC package (3.90mm width). PCB footprint libraries and placement coordinates must be updated accordingly. Pin pitch and lead configuration differ between packages.

Q: Is the I2C interface identical between both parts?

A: Yes. Both components implement I2C dimming control at 400kHz frequency with identical protocol specifications.

Q: What is the operating temperature range for both parts?

A: Both the PCA9553D/01,112 and PCA9553DP/01,118 operate across -40°C to 85°C ambient temperature range.