Skyworks Solutions, Inc.: LED Camera Flash Driver: SKY81279: SKY81279-11-563LF

Power Electronics Products from CDI

1.5A Single Flash LED Driver IC in a TDFN Package
Manufacturer: Skyworks Solutions, Inc.
Status: Standard
Data Sheet: SKY81279-11-563LF Data Sheet
RoHS Compliance: Skyworks Solutions, Inc., SKY81279-11-563LF, LED Camera Flash Driver, 1.5A Single Flash LED Driver IC in a TDFN Package (Rohs Compliant), Component Distributors Inc. (CDI) Yes
Serial Boost
Flash Iout Total:
1500 mA
Movie Mode Iout Total:
143 mA
# LED Channels:
Vin Min:
2.7 V
Vin Max:
5.5 V
Vout Max:
5.5 V
IQ (typ):
230 µA
Shutdown Current:
1 µA
Peak Efficiency:
88 μH
The SKY81279 is a high-efficiency, 1.5A high-current boost converter with a programmable constant current sink. It is an ideal power solution for LED photo flash applications in all single-cell Li-ion powered products. The SKY81279 maintains output current regulation by switching the internal high-side and low-side switch transistors. The transistor switches are pulse-width modulated at a fixed frequency of 2.0MHz. The high switching frequency allows the use of a small external inductor and output capacitor. Skyworks' proprietary AS 2 Cwire™ (Advanced Simple Serial Control) serial digital interface is used to enable, disable, configure, and program the operation of the SKY81279. Using the AS2Cwire interface, the LED flash and movie-mode currents can be programmed to different levels. The SKY81279 includes a separate Flash Enable input to initiate the flash operation and a Flash Inhibit pin to quickly reduce the flash current to moviemode levels during high battery demand. The SKY81279 contains a thermal management system to protect the device in the event of output short circuit. Built-in circuitry prevents excessive inrush current during start-up. The shutdown feature reduces quiescent current to less than 1.0μA. The SKY81279 is available in a a Pb-free, 14-pin 2mm x 3mm TDFN package.
1 - 99 $0.388
100 - 499 $0.316
500 - 2499 $0.296
On Order: 3122
+31222 Weeks
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Package Format
DescriptionUnits Per FormatAvailable
(T/R) 3000 0