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LDS8846 Datasheet(PDF) 1 Page - IXYS Corporation

Part # LDS8846
Description  4-Channel Ultra Low Dropout No Noise LED Driver
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Manufacturer  IXYS [IXYS Corporation]
Direct Link  http://www.ixys.com
Logo IXYS - IXYS Corporation

LDS8846 Datasheet(HTML) 1 Page - IXYS Corporation

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LDS8846
© 2009 IXYS Corp.
1
Doc. No. 8845DS, Rev. N1.6
Characteristics subject to change without notice
4-Channel Ultra Low Dropout No Noise LED Driver
FEATURES
o
Ultra-low dropout PowerLite
™ Current
Regulator*
o
Drives up to 4 LEDs at 30 mA each
o
PWM brightness control
o
Power efficiency > 95%
o
Low input noise & ripple
o
Low current shutdown mode
o
Load disconnect in shutdown mode
o
Short circuit protection
o
Thermal shutdown protection
o
Available in 4 x 4 x 0.8 mm and 3 x 3 x 0.8 mm
16-pin TQFN packages
APPLICATION
o
Keypad and Display Backlight
o
Cellular Phones
o
Digital Still Cameras
o
PDAs and Smartphones
DESCRIPTION
The LDS8846 is a high efficiency ultra-low dropout
current regulator that can drive up to four LEDs. The
LED current is easily adjustable by an external
resistor up to 30 mA per channel.
The CTRL0, CTRL1, and CTRL2 logic inputs function
as a LED enable and a PWM mode LED brightness
control.
The driver supports a wide range of input voltages
from 2.7 V to 5.5 V.
The thermal and short circuit protection guarantee
high device reliability.
The device is available in a 16-lead TQFN 4 x 4 mm
and 3 x 3 mm packages with a max height of 0.8 mm
.
.
TYPICAL APPLICATION CIRCUIT


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