LC75835W-E Equivalent & Substitute Parts

Part Overview

The LC75835W-E is an LCD driver IC manufactured by onsemi, designed for segment LCD display applications. This device is classified as a Power Management (PMIC) component and operates as a serial interface LCD driver supporting 105 and 136 segment configurations. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and component procurement in legacy applications.

Substiute Parts

LC75835W-E

onsemiIn Stock: 1076LC75835W-E Datasheet

Current PartRFQ

LC75890W-2H

onsemiIn Stock: 1558LC75890W-2H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LC75835W-E is determined by the following critical parameters:

• Package Compatibility: Both the main part and substitute must use the 48-SQFP (7x7) surface mount package to ensure PCB footprint compatibility
• Supply Voltage Range: The substitute must operate within the 2.7V ~ 3.6V supply voltage specification
• Interface Type: Serial interface requirement must be maintained
• Display Type: LCD driver functionality must be preserved
• Mounting Type: Surface mount technology must be consistent

The LC75890W-2H meets these substitution criteria. While it supports different segment configurations (37 and 148 segments versus 105 and 136 segments), it maintains identical package geometry, supply voltage compatibility, serial interface architecture, and surface mount characteristics. Both devices are onsemi LCD driver ICs within the same product family, sharing the same electrical interface standards and PCB mounting requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the LC75835W-E and LC75890W-2H are obsolete products from onsemi's LCD driver portfolio. Selection between these parts is based on application-specific segment requirements and environmental operating conditions.

The LC75890W-2H offers an extended operating temperature range (-40°C to 85°C versus -30°C to 75°C) and improved moisture sensitivity classification (MSL 3 versus MSL 4), providing enhanced reliability in demanding storage and operational environments. Both devices maintain identical electrical interface specifications, supply voltage compatibility, and package geometry.

Regulatory compliance is equivalent for both parts: both are REACH Unaffected and classified under ECCN EAR99, with matching HTSUS commodity codes. Current supply availability differs, with LC75890W-2H showing higher inventory levels (1454 units versus 996 units).

Frequently Asked Questions (FAQ)

Q: Can the LC75890W-2H directly replace the LC75835W-E on existing PCBs?

A: Yes, from a physical and electrical interface perspective. Both devices use identical 48-SQFP (7x7) package geometry and operate on the same 2.7V ~ 3.6V supply voltage with serial interface architecture. PCB footprints are compatible. However, segment configuration differences (37/148 versus 105/136) require firmware or display mapping adjustments in the host system.

Q: What is the significance of the different segment configurations?

A: Segment configuration determines the maximum number of LCD display segments the driver can control. The LC75835W-E supports up to 136 segments, while the LC75890W-2H supports up to 148 segments. Selection depends on the specific LCD panel design in the application.

Q: Are there differences in supply current requirements?

A: The LC75890W-2H specifies a supply current of 135 µA. The LC75835W-E does not provide this parameter in the available documentation. Power supply design should accommodate the LC75890W-2H specification if substitution is implemented.

Q: What does the MSL rating difference mean for component handling?

A: MSL 4 (LC75835W-E) requires reflow within 72 hours of moisture exposure, while MSL 3 (LC75890W-2H) allows 168 hours. The LC75890W-2H provides extended shelf life and reduced risk of moisture-related failures during storage and assembly processes.

Q: Are both parts still available for procurement?

A: Both devices are classified as obsolete. Availability is limited to existing inventory from authorized distributors. The LC75890W-2H currently shows higher stock levels (1454 units) compared to the LC75835W-E (996 units).