Skyworks Solutions, Inc.: LED Camera Flash Driver: SKY81290: SKY81290-11-564LF

Power Electronics Products from CDI

1.2 A Single Flash LED Driver With AS2C Interface
Manufacturer: Skyworks Solutions, Inc.
Status: Standard
Data Sheet: SKY81290-11-564LF Data Sheet
RoHS Compliance: Skyworks Solutions, Inc., SKY81290-11-564LF, LED Camera Flash Driver, 1.2 A Single Flash LED Driver With AS2C Interface (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
TDFN-14L 3x3
Also Available
Part FunctionPart NumberDescription
Evaluation Board SKY81290-11-564LF-EVB1 Skyworks Solutions, Inc. Evaluation board for SKY81290-11-564LF
The SKY81290 is a high efficiency, 1.2 A 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 SKY81290 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 2.0 MHz. The high switching frequency allows the use of a small external inductor and output capacitor, which makes the SKY81290 ideally suited for small battery-powered applications. Skyworks proprietary Advanced Simple Serial Control (AS 2 Cwire™) digital interface is used to enable, disable, configure, and program the operation of the SKY81290. Using the AS 2 Cwire interface, the Movie Mode current level for each LED, flash safety timer, and the flash-to-Movie-Mode current ratio can be programmed to one of 16 levels. The SKY81290 includes a separate flash enable input (FLEN) to initiate the flash operation. Also included is a flash inhibit pin (FLINH) that reduces the flash current to Movie Mode levels during high battery demand. The maximum Flash and Movie Mode current is set by one external resistor where the ratio of Flash to Movie Mode current is set at approximately 7:1. The SKY81290 contains a thermal management system to protect the device in the event of an output short-circuit condition. Built-in circuitry prevents excessive inrush current during start-up. The shutdown feature reduces quiescent current to less than 1.0 μA. The SKY81290 is available in a 14-pin, 3 x 3 mm TDFN package and a 14-pin, 3 x 2 mm TDFN package.
1 - 99 $0.453
100 - 499 $0.369
500 - 2499 $0.346
On Order: 15106
+151062 Weeks
Call 1-800-777-7334 for Availability or Get a Quote
Package Format
DescriptionUnits Per FormatAvailable
(T/R) 3000 0