MIC4834YMM-TR

Lighting, Ballast Controllers Overview

The MIC4834YMM-TR is a dual-channel EL lamp driver controller manufactured by Microchip Technology. It operates within a supply voltage range of 2.3V to 5.8V and supports frequencies between 35kHz and 350kHz. The device draws a maximum supply current of 152 µA and provides an output source/sink current of 5mA per channel. Packaged in a 10-MSOP format, this component is designed for driving electroluminescent displays with fixed frequency operation.

Lighting, Ballast Controllers Feature Summary

• Dual-channel architecture for independent or simultaneous EL panel control
• Low power consumption suitable for battery-operated portable devices
• Fixed frequency operation eliminating the need for external timing components

Lighting, Ballast Controllers Applications

• Backlighting for LCD modules in handheld instruments
• Status indicators in automotive dashboards
• Display illumination in medical monitoring equipment

Lighting, Ballast Controllers Procurement Notes

Verify part status as obsolete before procurement planning. Confirm package integrity and pinout compatibility with existing PCB layouts. Ensure supply voltage requirements align with system design constraints. Check for alternative sources if immediate availability is critical due to end-of-life status.

Lighting, Ballast Controllers Selection Notes

Select this component when dual-channel EL drive is required with minimal external circuitry. Consider the fixed frequency limitation against variable frequency alternatives. Evaluate the 5mA output capability against specific EL panel capacitance and brightness requirements. Verify MSOP-10 footprint availability in the target assembly process.

Lighting, Ballast Controllers Part Context

This part belongs to the MIC4834 family of EL lamp drivers. It integrates oscillator and driver stages into a single IC. The YMM suffix indicates the specific temperature grade and packaging variant. Microchip acquired Micrel, which originally developed this line of power management ICs.

Lighting, Ballast Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the obsolete status, direct replacements may require redesigning the oscillator timing or adjusting the drive strength. Consult manufacturer archives for legacy cross-reference data.