LB1991V-TLM-E

Overview

The LB1991V-TLM-E is a monolithic linear IC designed as a low-voltage, low-saturation, two-channel motor driver with bidirectional braking functionality. It provides constant-voltage regulated output for bidirectional operation, making it suitable for video equipment and portable devices. The device features a wide operating voltage range of 3.0 to 9.0 V and achieves a low saturation voltage of 0.40 V at an output current of 200 mA. It consumes minimal current in standby mode, typically 0.1 μA or less. The component includes a built-in reference voltage coupled to the input and allows for setting bidirectional constant-voltage regulation values. It is housed in a compact MFP14S package.

Feature Summary

• Monolithic linear integrated circuit architecture optimized for low-voltage applications
• Two-channel bidirectional motor driver with integrated braking function
• Low saturation voltage performance ensuring efficient power delivery
• Ultra-low standby current consumption for extended battery life

Applications

• Video equipment motor control
• Camera lens actuation systems
• Portable electronic device mechanisms

Procurement Notes

Verify the specific ordering suffix and package variant against the official onsemi datasheet to ensure compatibility with design requirements. Confirm that the MFP14S package dimensions and thermal characteristics meet the target application's constraints. Cross-reference the electrical specifications with the latest product documentation to avoid discrepancies from previous revisions.

Selection Notes

Select this component for designs requiring bidirectional motor control with minimal quiescent current. The low saturation voltage makes it suitable for battery-powered portable devices where efficiency is critical. Ensure the operating voltage range aligns with the system's power supply rails. Consider the thermal dissipation capabilities within the compact package for high-current continuous operation scenarios.

Part Context

This part belongs to the LB1837M series of monolithic linear ICs developed by onsemi. These drivers are specifically engineered for video and camera applications, offering reliable bidirectional operation in a small form factor. The series emphasizes low voltage operation and energy efficiency, catering to the demands of modern portable electronics and imaging devices.

Replacement Considerations

The LB1837M is documented as a related monolithic linear IC with similar bidirectional motor driver functionality. Verify pinout compatibility and electrical parameter alignment before substitution.