LB1838ML-TRM-E Equivalent & Substitute Parts

Part Overview

The LB1838ML-TRM-E is a bipolar motor driver IC manufactured by onsemi, designed for battery-powered applications requiring integrated control and power stage functionality. This device operates across a 2.5V to 9V supply voltage range and delivers 1A output current through a half-bridge (4) output configuration using parallel interface control.

The LB1838ML-TRM-E is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this motor driver architecture.

Substiute Parts

LB1838ML-TRM-E

onsemiIn Stock: 1733LB1838ML-TRM-E Datasheet

Current PartRFQ

LB1838M-TRM-E

onsemiIn Stock: 24307LB1838M-TRM-E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LB1838ML-TRM-E is determined by strict equivalence across the following critical parameters:

• Motor Type - Stepper: Bipolar
• Output Configuration: Half Bridge (4)
• Interface: Parallel
• Current - Output: 1A
• Voltage - Supply: 2.5V ~ 9V
• Voltage - Load: 1.8V ~ 9V
• Operating Temperature: -20°C ~ 75°C (TA)
• Package / Case: 14-LSOP (0.173", 4.40mm Width)
• Supplier Device Package: 14-MFPS

The LB1838M-TRM-E meets all substitution criteria and is classified as a parametric equivalent. Both devices share the same base product number (LB1838), identical electrical specifications, and compatible packaging, enabling direct functional replacement in applications designed for the LB1838ML-TRM-E.

Parameter Comparison

Engineering Selection Recommendations

The LB1838M-TRM-E is a direct parametric equivalent to the LB1838ML-TRM-E. Both devices are classified as obsolete products from onsemi, sharing identical electrical specifications, output configuration, interface protocol, and package form factor.

The LB1838M-TRM-E carries RoHS3 compliance certification, providing enhanced environmental regulatory alignment compared to the main part specification. Both devices maintain REACH Unaffected status and EAR99 export classification.

Selection between these equivalent parts should be based on supply chain availability and inventory status. The LB1838M-TRM-E currently maintains higher inventory levels (24,220 pcs) relative to the LB1838ML-TRM-E (1,655 pcs), supporting sustained procurement for production or maintenance applications.

Frequently Asked Questions (FAQ)

Q: Can the LB1838M-TRM-E directly replace the LB1838ML-TRM-E in existing designs?

A: Yes. The LB1838M-TRM-E is a parametric equivalent with identical electrical specifications, output configuration, interface type, and package form factor. No circuit modifications are required for direct substitution.

Q: Are there differences in package dimensions between these parts?

A: No. Both the LB1838ML-TRM-E and LB1838M-TRM-E use the 14-LSOP package with 0.173" width (4.40mm). PCB footprints and mounting procedures are identical.

Q: What is the significance of the product status being "Obsolete" for both parts?

A: Obsolete status indicates these devices are no longer in active production by onsemi. Both parts remain available through existing inventory channels. Long-term availability cannot be guaranteed, and procurement planning should account for potential supply constraints.

Q: Does the RoHS3 compliance of the LB1838M-TRM-E affect compatibility with designs specified for the LB1838ML-TRM-E?

A: No. RoHS3 compliance is an environmental regulatory attribute that does not alter electrical performance or functional compatibility. The LB1838M-TRM-E operates identically to the LB1838ML-TRM-E in all specified electrical parameters.

Q: What are the critical parameters that define substitution eligibility for bipolar motor driver ICs in this category?

A: Substitution eligibility is determined by equivalence across motor type (bipolar stepper), output configuration (half bridge 4), interface protocol (parallel), current rating (1A), supply voltage range (2.5V ~ 9V), load voltage range (1.8V ~ 9V), operating temperature range (-20°C ~ 75°C), and package form factor (14-LSOP, 14-MFPS).