High Efficiency 55V, 5A, Step-down Controller For RGBW LED Lighting
- Parameters
- Features
- Description
| Part Number | SY22647AHHC |
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| Fsw (MHz) | |
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| Description | Buck Controller, RGB4 channel, PWM Dimming |
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| Package | TSSOP24E |
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| Vin_min (V) | 11 |
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| Vin_max (V) | 55 |
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| Io_max (A) | 5 |
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| Application | DCDC Buck |
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- Input Range: 11V-55V
- 4-channel Shunt Dimming MOSFET Driver
- Excellent PWM Dimming: 0~100% PWM Dimming Frequency: 500Hz~20 KHz
- MOSFET Gate Driver: Source1 1A and Sink 2A
- Programmable Current Ripple Hysteresis Control
- Simple External Components
- Reliable Input UVLO and Open LED Protection
- Thermal Shut down Protection
- RoHS Compliant and Halogen Free
- Compact Package: TSSOP24E
SY22647A is a 4-channel output, high efficiency, 11V-55V wide input voltage range synchronous step-down DC-DC constant current controller targeting at RGBW color mixing and dimming applications. The device operates at a programmable hysteresis control to achieve an accurate constant current without the design of loop compensation while achieve very flexible control with each string of LED current. High resolution PWM dimming is achieved by shunt FET PWM driver and PWM signal input from wireless module.
The device integrates high current main switch and synchronous switch driver to minimize the switch loss. With thermal-enhanced TSSOP24E package, the device can handle power dissipation more efficiently for LED driver design.
Evaluation Board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22647AHHC is intended for evaluating AC 20~36V input, 2A output High Efficiency 55V, 2A, Step-down Regulator For RGBW LED Lighting
