SC606 Low Noise Smart LED Driver with Serial Interface
● Description:
■ The SC606 is a very high efficiency charge pump white/color LED driver from the mAhXLife TM family of products. It is optimized for Li-Ion battery applications. The LED current is regulated to a value configured by the user through an I²C compatible serial interface.
■ LED outputs are current-matched for consistent LED brightness. Up to 6 LEDs are controlled in three zones for brightness control in multiple displays. The 6 LED outputs are divided into 3 pairs of LEDs. Each pair has current that is programmable independent of the other pairs. Any combination of LEDs may be turned on using the serial interface. The SC606 also has a float detect feature that disables any current driver during normal operation when an open-load condition is detected.
■ Patented low noise switching circuitry and constant output current allow the use of extremely small input and output capacitors.
● Features:
■ Very High Efficiency Over 90% of Battery Life
■ Current Regulation for 6 LEDs
■ Current Matching Tolerance of +/3.5% from LED to LED
■ Current Accuracy to +/6.5% of Specified Value
■ Current Range per LED [0.5mA 32mA]
■ High Available Total LED Current = 6 I LED = 120mA
■ I²C Bus Limited Compatibility SC606
■ Low Shutdown Current: 0.1μA Typical
■ Soft-Start /In-rush Current Limiting
■ Short Circuit /Thermal Protection
■ MLP-16 [4x4] Package
■ 1.33MHz and 250kHz Programmable Fixed Frequency
■ Separate Brightness Zones for Multiple Displays
■ Three Charge Pump Modes of Operation: 1x, 1.5x and 2x
■ Open LED Output Protection
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Datasheet |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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August 31, 2006 |
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636 KB |
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