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SC606

Semtech
Part Number SC606
Manufacturer Semtech
Description Low Noise Smart LED Driver with Serial Interface
Published Apr 18, 2010
Detailed Description Low Noise Smart LED www.DataSheet4U.com Driver with Serial Interface POWER MANAGEMENT Description The SC606 is a very hi...
Datasheet PDF File SC606 PDF File

SC606
SC606

Overview
Low Noise Smart LED www.
DataSheet4U.
com Driver with Serial Interface POWER MANAGEMENT Description The SC606 is a very high efficiency charge pump white/color LED driver from the mAhXLifeTM 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.
SC606 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 ILED = 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 Applications Cellular Phones LED Backlighting PDA Power Supplies Portable Devices Electronic Books Wireless Web Appliances Typical Application Circuit D2 16 15 D3 14 Patent Pending D4 13 ILEDC1 D5 ILEDA2 ILEDB1 ILEDB2 D1 D6 12 1 ILEDA1 ILEDC2 SDA 2 SDA GND 11 10 C2 1µF SCL 3 SC606 SCL C2+ EN 4 EN VOUT C1 + VIN C1- C2- 9 5 6 7 C1 1µF C3 1µF 8 VBAT C4 1µF Augu...


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