White LED Step-Up Converter
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This is a Boost LED driver designed drive white LED with constant current. It can drive 2 ~ 6 LED in a series connection from a single Li-Ion cell ensuring uniform brightness in small screen backlighting applications. The device also supports a single feedback of parallel connected multiple strings of LEDs for driving higher number of LEDs. It is available in SOT26, low profile TSOT26 and the extremely thin and small footprint U-DFN2020-6 Type C.
AEC Qualified | No |
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Compliance (Only Automotive supports PPAP) | Standard |
Function | PWM Boost LED Driver |
MinimumInput Voltage (V) | 2.7 V |
MaximumInput Voltage (V) | 5.5 V |
Maximum Output Voltage (V) | 26 V |
Number of Regulated Output Channels | 1 |
Maximum Output Current per Channel | 40 mA |
Typical Overcurrent Protection Current | 750 mA |
Switching Frequency (MHz) | 1.4 MHz |
Efficiency (%) | 84 % |
Quiescent Current (µA) | 2 mA |
Standby Quiescent Current (µA) | 1 µA |
SW RDS(ON) | 0.75 Ω |
Dimming | PWM |
OVP | Yes |
Soft Start | Yes |
VFB | 250 V |
OperatingTemperatureRange (°C) | -40 to 85 °C |