DC/DC Buck Controller For LED Dimming Lighting
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- Parameters
- Features
- Description
| Part Number | SY22651ZFAC |
|---|
| Dimming Mode | Analog,PWM |
|---|
| Topology | Buck |
|---|
| Package | SO8 |
|---|
| Protection Mode | SLP,OLP |
|---|
| Features / Special Function | QR,Non-Isolated |
|---|
| Input Type | 400Vdc |
|---|
| Po_max (W) | 80 |
|---|
| PF (>) | 0.5 |
|---|
| Application | DC Dimming Controller |
|---|
| Idrive_max (A) | 200 |
|---|
- Linear Dimming Curve.
- Dimming Range from 2.5% to 100.0%.
- CV Mode for Bias Supply when PWM=0%
- Valley Turn-on to Achieve Low Switching Losses
- Single Winding Inductor with Floating Topology
- 200mA Sourcing Current and 600mA Sinking Current Drive Capability
- Low Start up Current: 34μA typical
- Reliable Short LED and Open LED Protection
- Reliable Short ISEN Resistor Protection
- Compact Package: SO8
The SY22651Z is a DC/DC Buck controller targeting at LED lighting applications with analog dimming. It adopts the proprietary control architecture to achieve an accurate regulation of LED current and Quasi-Resonant valley turn-on high efficiency operation.
The SY22651Z supports analog dimming function and it has a linear dimming curve.
It integrates open/short LED protection and eliminates the auxiliary winding with floating topology, thus minimizing the component count and board size.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22651ZFAC is intended for evaluating AC 176~264V input, 72V/300mA output DC/DC Buck Controller With Primary Side Control For LED Lighting And Mutiple Dimming Option
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