PCA9551BSHP LED Driver IC Equivalent & Substitute Parts

Part Overview

The PCA9551BSHP is an 8-output LED driver IC with integrated power switches and PWM dimming capability, rated for 25mA per channel output. Manufactured by NXP USA Inc., this component operates across a 2.3V to 5.5V supply voltage range and is housed in a 16-HVQFN (4x4) surface mount package with exposed pad.

The PCA9551BSHP carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this LED driver topology.

Substiute Parts

PCA9551BSHP

NXP USA Inc.In Stock: 1174PCA9551BSHP Datasheet

Current PartRFQ

PCA9551BS,118

NXP USA Inc.In Stock: 4869PCA9551BS,118 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PCA9551BSHP are identified based on strict parametric equivalence across the following critical criteria:

• Output Configuration: 8 independent outputs with integrated power switches
• Current Rating: 25mA per channel
• Supply Voltage Range: 2.3V to 5.5V operation
• Dimming Control: PWM-based dimming capability
• Package Compatibility: 16-VQFN Exposed Pad surface mount package
• Thermal Range: -40°C to 85°C operating temperature
• Regulatory Compliance: ROHS3 Compliant, REACH Unaffected

The PCA9551BS,118 meets all parametric requirements for direct substitution. The primary distinction is packaging format (Tape & Reel versus standard packaging) and product status (Active versus Obsolete), with no electrical or functional differences affecting circuit performance.

Parameter Comparison

Engineering Selection Recommendations

The PCA9551BS,118 is a direct parametric equivalent to the PCA9551BSHP. All electrical specifications, thermal characteristics, and regulatory compliance certifications are identical. The component is manufactured by the same supplier (NXP USA Inc.) and maintains the same base product number (PCA9551).

The PCA9551BS,118 carries Active product status, ensuring ongoing availability and manufacturing support. This substitution is appropriate for new designs, production continuity, and replacement applications where the Obsolete PCA9551BSHP is no longer readily available.

The difference in packaging format (Tape & Reel versus standard packaging) is a procurement and handling consideration only and does not affect electrical performance or circuit compatibility. Both parts are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the PCA9551BS,118 be used as a direct replacement for the PCA9551BSHP in existing designs?

A: Yes. The PCA9551BS,118 is electrically and functionally identical to the PCA9551BSHP. All output configurations, current ratings, supply voltage ranges, PWM dimming characteristics, and thermal specifications match exactly. No circuit modifications are required.

Q: What is the difference between the PCA9551BSHP and PCA9551BS,118?

A: The primary differences are product status and packaging format. The PCA9551BSHP is Obsolete, while the PCA9551BS,118 is Active. The PCA9551BS,118 is supplied in Tape & Reel (TR) format, whereas the PCA9551BSHP uses standard packaging. These differences do not affect electrical performance or pin compatibility.

Q: Are both parts compatible with the same PCB layout and footprint?

A: Yes. Both parts use the identical 16-VQFN Exposed Pad surface mount package with the same pinout, dimensions, and pad configuration. PCB layouts designed for the PCA9551BSHP require no modification for the PCA9551BS,118.

Q: What certifications and compliance standards apply to the PCA9551BS,118?

A: The PCA9551BS,118 is ROHS3 Compliant and REACH Unaffected. Moisture Sensitivity Level (MSL) is rated at 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Why is the PCA9551BSHP marked as Obsolete?

A: Obsolete status indicates that the manufacturer has discontinued active production and support for this specific part number. The PCA9551BS,118, carrying the same base product number (PCA9551) with Active status, represents the current manufacturing equivalent and is recommended for all new applications and ongoing supply requirements.