SLA5068 LF853

Overview

The SLA5068 is a single-chip N-channel five-phase motor drive IC manufactured by Sanken Electric. It integrates five power MOSFETs and associated driver circuits into a SIP15 package with an integrated heatsink fin. The device supports continuous drain currents of 7A per phase, with a peak pulsed current capability of 15A. Key electrical specifications include a breakdown voltage (V(BR)DSS) of 60V, a maximum gate-source voltage (VGSS) of ±20V, and an on-resistance (RDS(ON)) of 0.1Ω at VGS=10V. The component operates within a junction temperature range up to 150°C and provides isolation between the fin and lead pins.

Feature Summary

• Integrates five N-channel power MOSFETs and driver logic for direct control of five-phase brushless DC motors
• Includes an integrated aluminum heatsink fin to facilitate thermal dissipation from the chip substrate
• Provides high-voltage isolation between the mounting surface and electrical leads

Applications

• Five-phase brushless DC motor drives in industrial automation equipment
• Precision motion control systems requiring multi-phase commutation
• High-reliability motor applications in automotive or aerospace subsystems

Procurement Notes

Verify the specific suffix LF853 against official Sanken Electric documentation to confirm material composition and compliance status. Ensure the ordering information matches the SIP15 package variant with the integrated fin structure. Confirm that the requested quantity aligns with manufacturer distribution channels rather than generic distributor stock levels.

Selection Notes

Select this component when a five-phase topology is required for smoother torque operation compared to three-phase alternatives. Evaluate the thermal resistance parameters, specifically the junction-to-case rating, to determine if the integrated fin meets the system's heat dissipation requirements without additional external cooling solutions.

Part Context

The SLA5068 belongs to Sanken Electric's SLA series of discrete power modules designed for motor control applications. This series typically combines power switching elements with gate drive circuitry to simplify PCB layout and reduce component count in multi-phase motor drive designs.

Replacement Considerations

Direct replacements must match the five-phase configuration and SIP15 pinout. Verify that alternative components support the same 60V breakdown voltage and 7A continuous current ratings. Check compatibility with existing gate drive voltages and thermal management constraints.