MAX6978APE

LED Driver IC Overview

The MAX6978APE is an 8-port LED driver IC manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 3 V to 5.5 V and provides a constant output current of 55 mA per channel. The device features PWM dimming capability and includes protection mechanisms such as over-temperature protection (OTP) and LED open-circuit detection. It utilizes a serial interface for control and is housed in a 16-DIP package with a through-hole mounting style, suitable for operation between -40°C and +125°C.

LED Driver IC Feature Summary

• Provides eight independent constant-current sinking channels for LED control
• Integrates pulse-width modulation (PWM) dimming functionality
• Includes hardware protection against over-temperature conditions and LED open circuits

LED Driver IC Applications

• Signage systems
• LED display modules
• Industrial indicator panels

LED Driver IC Procurement Notes

Verify the specific suffix 'A' indicates the industrial temperature grade and PDIP package variant. Confirm the '+' suffix denotes lead-free compliance status according to manufacturer documentation. Ensure the serial interface requirements match the host controller capabilities before integration.

LED Driver IC Selection Notes

Select this component when eight individually controllable constant-current sinks are required. The 55 mA output rating suits standard indicator LEDs. Verify that the system design accommodates the 16-pin DIP footprint and serial communication protocol constraints.

LED Driver IC Part Context

This part belongs to the MAX697x family of serial LED drivers from Maxim Integrated. These devices are designed to simplify the interface between microcontrollers and large arrays of LEDs by reducing pin count requirements through serial data transfer.

LED Driver IC Replacement Considerations

Check for MAX6978 without the 'A' suffix for commercial temperature variants. Consider MAX6977 if boost topology is required instead of linear sinking.