LC75809PTS-H Equivalent & Substitute Parts

Part Overview

The LC75809PTS-H is an LCD driver integrated circuit manufactured by onsemi, designed for segment LCD display applications. This device functions as a serial interface LCD driver capable of controlling 267 or 352 segment configurations in a 100-TQFP surface mount package. The product is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and component procurement in legacy systems.

Substiute Parts

LC75809PTS-H

onsemiIn Stock: 1031LC75809PTS-H Datasheet

Current PartRFQ

LC75813T-E

onsemiIn Stock: 3117LC75813T-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LC75809PTS-H is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 100-TQFP (14x14) surface mount package to ensure PCB footprint and assembly process compatibility.

Interface Type: Serial interface requirement must be maintained across all substitute candidates.

Display Configuration: The substitute must support segment configurations within or overlapping the 267/352 segment range of the main part, or provide a superset of these capabilities.

Voltage Supply Range: The substitute voltage range must encompass or be compatible with the 4.5V ~ 6.3V operating window of the LC75809PTS-H.

Operating Temperature Range: The substitute must maintain the -40°C ~ 85°C operating temperature specification.

Mounting Type: Surface mount technology must be preserved.

The LC75813T-E meets these substitution criteria through identical package geometry, matching interface protocol, compatible segment configuration (261/344 segments), overlapping voltage supply capability (2.7V ~ 6V encompasses the required 4.5V ~ 6.3V range), and identical operating temperature range.

Parameter Comparison

Engineering Selection Recommendations

Both the LC75809PTS-H and LC75813T-E are classified as obsolete products. Selection between these parts should be based on the following engineering considerations:

Voltage Supply Range: The LC75813T-E provides a wider voltage supply range (2.7V ~ 6V) compared to the LC75809PTS-H (4.5V ~ 6.3V). If the application operates at voltages below 4.5V, the LC75813T-E is the only viable option.

Current Consumption: The LC75813T-E draws 250 µA supply current versus 1 mA for the LC75809PTS-H, representing a 75% reduction in quiescent current. This difference is significant for battery-powered or low-power applications.

Segment Configuration: The LC75813T-E supports 261/344 segment configurations, which are slightly lower than the 267/352 segments of the LC75809PTS-H. Verify that the display panel segment count does not exceed the substitute's capabilities.

Regulatory Compliance: Both parts maintain identical REACH and ECCN classifications (REACH Unaffected, EAR99), and both carry MSL 3 moisture sensitivity ratings. No compliance advantage exists between the two options.

Availability: The LC75813T-E shows higher inventory availability (3100 Pcs) compared to the LC75809PTS-H (982 Pcs), which may influence procurement decisions for volume requirements.

Frequently Asked Questions (FAQ)

Q: Can the LC75813T-E directly replace the LC75809PTS-H without PCB modifications?

A: Yes, both parts use identical 100-TQFP (14x14) surface mount packages. PCB footprint and assembly processes remain unchanged. However, firmware or driver software may require adjustment if the segment configuration difference (267/352 vs. 261/344 segments) affects display mapping.

Q: What is the primary difference between these two LCD drivers?

A: The main differences are segment configuration capacity (267/352 vs. 261/344 segments), supply voltage range (4.5V ~ 6.3V vs. 2.7V ~ 6V), and quiescent current consumption (1 mA vs. 250 µA). Both maintain identical package geometry, interface protocol, and operating temperature range.

Q: Is the LC75813T-E suitable for low-voltage applications below 4.5V?

A: The LC75813T-E supports operation down to 2.7V, making it suitable for applications requiring voltages below 4.5V. The LC75809PTS-H minimum voltage is 4.5V and cannot operate in this lower voltage range.

Q: Are there any RoHS or environmental compliance differences?

A: The LC75813T-E is explicitly marked as ROHS3 Compliant. Both parts maintain REACH Unaffected status and identical EAR99 export classification. Verify specific RoHS requirements for your application and region.

Q: What should I verify before implementing the LC75813T-E as a substitute?

A: Confirm that your display panel segment count does not exceed 261 or 344 segments (depending on configuration mode). Verify that your power supply voltage range is compatible with 2.7V ~ 6V operation. Review firmware or driver software to ensure compatibility with the segment configuration differences.

Q: Why are both parts classified as obsolete?

A: Both the LC75809PTS-H and LC75813T-E are obsolete products from onsemi. This classification indicates that these parts are no longer in active production. For new designs, consult onsemi's current LCD driver product portfolio for modern alternatives with extended lifecycle support.