High Efficiency 2-string LED Driver For Smart Phone
- Parameters
- Features
- Description
| Part number | SY22121POC |
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| Description | 2 string LED driver for smart phone with 40V 1A MOS, VLED<40V |
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| Channel(#) | 2 |
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| Topology | Boost + current sink |
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| Dimming mode | PWM Dimming |
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| Fsw(kHz) | 1000 |
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| Vin (min) (V) | 2.7 |
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| Vin (max) (V) | 28 |
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| Iout (max) (A) | 0.03 |
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| Package | CSP1.31×1.31-9 |
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| Application | Phone/PAD backlight |
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- Wide Input Range: 2.7V~28V
- Drive Up to 10 LEDs per String
- Integrated 40V Power MOSFET
- Integrated 2 Channel Current Source of Up to 30mA Each
- 1% Typical Current Matching Accuracy
- Low LED Regulated Voltage (150mV typical)
- High Frequency Boost Converter (1MHz)
- Internal Compensation and Soft-start
- Analog PWM Dimming with 500ns min. ON Time
- Enable and 1-wire Digital Dimming
- Up to 100:1 PWM Dimming Ratio (20kHz Dimming Frequency)
- Cycle-by-cycle Inductor Current Limit
- LED Open/Short Protection, Output Over-voltage Protection
- Thermal Shutdown Protection
- Low Quiescent Current and Low Shutdown Current
- Pb-free Package: CSP 1.31×1.31 -9
Evaluation Board
Photo of evaluation board
Photo of evaluation board
Photo of evaluation board
The EVB_SY22121POC is intended for evaluating High Efficiency 2-string LED Driver For Smart Phone
