PAM2861CBR-B

Overview

The PAM2861CBR-B is a buck topology LED lighting driver IC manufactured by Diodes Incorporated. It features a single output channel with an adjustable current mode output capable of delivering up to 1 A. The device operates within a wide input voltage range of 6 V to 40 V and supports a switching frequency between 233 kHz and 1 MHz. It is housed in a SOT-89-5 surface-mount package and functions reliably across an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Supports PWM dimming control for brightness adjustment
• Includes open LED protection circuitry
• Integrates internal switch for simplified design

Applications

• MR16 lighting fixtures
• Wall washer lights
• Floodlights
• Automotive lighting systems

Procurement Notes

Verify the specific suffix 'B' against the manufacturer's official documentation to confirm any distinct marking or revision differences compared to the standard PAM2861CBR. Ensure compatibility with required PCB footprint and thermal management specifications for the target application environment.

Selection Notes

Select this component for applications requiring a compact solution with a wide input voltage range. The SOT-89-5 package suits space-constrained designs. Verify that the required output current does not exceed the 1 A limit and that the system input voltage remains within the specified 6 V to 40 V operational window.

Part Context

This part belongs to the PAM2861 series of high-efficiency buck converters designed specifically for driving single or multiple series-connected LEDs. The series is characterized by its ability to handle high input voltages while maintaining precise constant current regulation, making it suitable for various general illumination and specialized lighting markets.

Replacement Considerations

Publicly confirmed substitute part numbers include ZXLD1350, ZXLD1360, PT4115, PT4105, BP1361, BP1360, SN3350, CL6808, and MT7201. Validate pinout and electrical parameter compatibility before substitution.