LC75852E-E Equivalent & Substitute Parts

Part Overview

The LC75852E-E is an LCD driver IC manufactured by onsemi, designed for 90-segment LCD display applications. This device operates as a serial interface LCD driver in a 64-PQFP surface mount package. The part is currently classified as obsolete, making identification of functionally compatible alternatives essential for ongoing system support and new design considerations.

Substiute Parts

LC75852E-E

onsemiIn Stock: 1276LC75852E-E Datasheet

Current PartRFQ

LC75832W-E

onsemiIn Stock: 1024LC75832W-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for LCD driver ICs is determined by the following critical parameters:

Interface Type: Both the main part and substitute must support serial interface communication to maintain firmware and PCB design compatibility.

Package Classification: The LC75852E-E uses a 64-PQFP package. The substitute LC75832W-E uses a 64-SQFP package. Both are 64-pin surface mount packages with compatible pinout footprints for board-level integration.

Voltage Supply Range: The LC75852E-E operates at 4.5V ~ 6V. The LC75832W-E operates at 2.7V ~ 6V, providing broader supply voltage compatibility while maintaining overlap in the original operating range.

Segment Configuration: The LC75852E-E supports 90-segment configuration. The LC75832W-E supports both 54-segment and 108-segment configurations, offering flexibility for different display requirements.

Temperature Range: The LC75852E-E operates from -40°C ~ 85°C. The LC75832W-E extends this to -40°C ~ 105°C, providing enhanced thermal performance.

Manufacturer Consistency: Both parts are manufactured by onsemi, ensuring design philosophy and pin-level compatibility within the LCD driver product family.

Parameter Comparison

Engineering Selection Recommendations

The LC75832W-E is an active product with current manufacturing support, whereas the LC75852E-E is obsolete. Both parts maintain identical REACH and ECCN compliance classifications, ensuring regulatory equivalence.

The LC75832W-E demonstrates improved specifications across multiple dimensions: reduced supply current (250 µA versus 1.4 mA), extended operating temperature range (-40°C ~ 105°C versus -40°C ~ 85°C), and lower moisture sensitivity level (MSL 3 versus MSL 4). The broader voltage supply range (2.7V ~ 6V) provides additional design flexibility while maintaining compatibility with the original 4.5V ~ 6V operating window.

Both devices employ serial interface architecture and surface mount packaging, supporting direct integration into existing PCB designs. The 64-pin package format remains consistent between both parts, though the PQFP and SQFP variants require verification of footprint compatibility at the board layout level.

Frequently Asked Questions (FAQ)

Q: Can the LC75832W-E directly replace the LC75852E-E in existing designs?

A: Both parts share serial interface architecture, 64-pin surface mount packaging, and identical regulatory compliance. However, segment configuration differences (90 segments versus 54/108 segments) and package variant differences (PQFP versus SQFP) require verification of firmware compatibility and PCB footprint alignment before implementation.

Q: What are the key differences in electrical performance?

A: The LC75832W-E operates at significantly lower supply current (250 µA versus 1.4 mA), extends the operating temperature range by 20°C on the upper limit, and supports a broader supply voltage range starting at 2.7V instead of 4.5V. These improvements reduce power consumption and thermal stress in the application circuit.

Q: Are there packaging considerations for substitution?

A: The LC75852E-E uses 64-PQFP (14x14) packaging while the LC75832W-E uses 64-SQFP packaging. Both are 64-pin surface mount packages, but the physical footprint and pin spacing may differ. PCB layout verification is required to confirm mechanical compatibility.

Q: What is the significance of the moisture sensitivity level difference?

A: The LC75852E-E has MSL 4 (72-hour floor life), while the LC75832W-E has MSL 3 (168-hour floor life). MSL 3 provides extended handling time before reflow soldering, reducing risk of moisture-induced defects during assembly processes.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the LC75852E-E and LC75832W-E maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring regulatory equivalence for export and supply chain purposes.