Overview
The BuckPuck is a high-efficiency line of true current-regulated LED drivers available in both AC and DC input configurations that utilize buck topology to deliver constant outputs ranging from 350mA to 1000mA. These compact modules are designed to power high-brightness LED arrays without the need for external current-limiting resistors or additional heat sinking by varying the output voltage to maintain a specific current. Additionally, the line supports versatile integration with features such as 0–10V dimming, TTL/CMOS logic-level control, and fast response times suitable for flashing or strobe applications
Part Number Identification
| Part Number | DC Input | AC Input | On-Board Trim | Control/Dimming | Connection Type |
|---|---|---|---|---|---|
| 3021-D-N-xxxx | 5-32V | no | no | no | 7-Pin SIP (4 Pins) |
| 3021-D-E-xxxx | 7-32V | no | no | yes | 7-Pin SIP (6 Pins) |
| 3021-D-I-xxxx | 7-32V | no | yes | yes | 7-Pin SIP (6 Pins) |
| 3023-D-N-xxxx | 5-32V | no | no | no | 4 Wires |
| 3023-D-E-xxxx | 7-32V | no | no | yes | 6 Wires |
| 3023-D-E-xxxxP | 7-32V | no | no | yes | 6 Wires |
| 3021-A-N-xxxx | no | 7-24Vrms | no | no | 7-Pin SIP (4 Pins) |
| 3021-A-E-xxxx | no | 7-24Vrms | no | yes | 7-Pin SIP (6 Pins) |
| 3021-A-I-xxxx | no | 7-24Vrms | yes | yes | 7-Pin SIP (6 Pins) |
| 3023-A-N-xxxx | no | 7-24Vrms | no | no | 4 Wires |
All specifications are subject to change without prior notification
Features
- Made in America craftsmanship and quality
- DC input voltage up to 32V
- 350mA, 500mA, 700mA, or 1.0A constant current output
- Customization of specifications available
- Optional on-board trim adjustment (40 – 110%)
- Output short circuit & open circuit protection
- Extremely small form factor (0.83”x 0.83”x 0.43”)
Applications
- Solar Lighting
- Architectural Lighting
- Point of Purchase Lighting
- Automotive & Marine Lighting
- Flash & Strobe Lighting
- Track Lighting
- Signal & Marker Lighting
- Sign & Channel Letters
Datasheet
Application Notes
Application Note – Flashing LEDs
Application Note – Recommended PCB Layout
Accessory Ordering Detail
| PART NUMBER | COMPATIBILITY | DIMMING | POTENTIOMETER | CONNECTION |
|---|---|---|---|---|
| 3021HE | 3021-A-E & I-xxx 4015-D-E & I-xxx | None | None | 6 Pin Connector to 6 Wire Lead |
| 3021HEP | Dimming | Yes | 6 Pin Connector to 6 Wire Lead |









