LB11847-E

Overview

The LB11847-E is a dual DC motor driver IC designed for automotive applications, featuring integrated high-side and low-side power MOSFETs. It supports continuous output currents of up to 2.5 A per channel with peak capabilities exceeding standard operating limits. The device includes built-in protection mechanisms such as over-current shutdown, thermal shutdown, and reverse battery voltage tolerance. Operating from a supply voltage range of 6 V to 16 V, it utilizes a PWM input interface for precise speed control. The component is housed in a compact HTSSOP-20 package, ensuring reliable performance in harsh automotive environments while minimizing board space requirements.

Feature Summary

• Integrated dual H-bridge configuration with high-side and low-side power MOSFETs for efficient motor control
• Built-in comprehensive protection features including over-current, thermal shutdown, and reverse polarity tolerance
• Direct PWM input compatibility for straightforward digital speed and direction control without external logic

Applications

• Automotive seat adjustment motors
• Power window and sunroof actuators
• HVAC blower fan control systems

Procurement Notes

Verify the exact suffix 'E' against the manufacturer's current datasheet to confirm pinout and packaging specifications. Ensure the procurement source provides original manufacturer documentation rather than third-party interpretations. Cross-reference the part number with official onsemi catalogs to validate availability and revision status before finalizing orders.

Selection Notes

Select this component when designing automotive motor control circuits requiring dual-channel drive capability within a single package. Consider its integrated protection features for reducing external component count and enhancing system reliability. Evaluate the thermal performance characteristics relative to the expected load current and ambient temperature conditions during the design phase.

Part Context

This device belongs to onsemi's automotive-grade motor driver family, specifically engineered for robust operation in vehicle electrical systems. It complements other single-channel drivers by offering dual functionality in a reduced footprint. The series emphasizes durability and ease of integration into existing automotive electronic architectures.

Replacement Considerations

Consult official onsemi substitution guides for verified alternatives. Generic equivalents may lack specific automotive qualification or protection feature parity. Verify pin-to-pin compatibility and electrical parameter alignment before considering any substitute components.