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AiT Semiconductor

A8290 Datasheet Preview

A8290 Datasheet

LED DRIVER

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AiT Semiconductor Inc.
www.ait-ic.com
A8290
LED DRIVER
WIDE RANGE, LINEAR LED DRIVER
DESCRIPTION
The LEADCHIP A8290 is a high-voltage adjustable
current source with accurate temperature
compensation. The device is designed to provide a
constant current source determined by an external
sense resistor R .SENSE The current is adjustable from
10mA to 20mA with less than 10% error while input
changes from 5V to 90V. With an external resistor
(R1 in Figure 1) between VA and IS pin, the heat in
the IC can be significantly reduced while keeping the
summation of IC and R1 current to be constant. This
is extremely useful in the area that power lines are
not very stable. A typical application for the A8290 is
to drive LEDs with a constant current varies from 10-
20mA. They can also be used in parallel to provide
higher current according to the bias.
The A8290 is available in TO-92 Package.
TYPICAL APPLICATION
FEATURES
Wide operation range: from 5V to
90V(VA-B)
ILED can be programmed from 10mA to
20mA via changing RSENSE
Power dissipation can be adjusted
Easy to use, only 3 pins and very little
external components are needed
Can be paralleled for higher current
Temperature compensated
Available in TO-92 packages
APPLICATIONS
Industrial lamp indicators
LED driver
Accent lighting
Automotive
Constant current source
Constant current sink
REV1.0 - NOV 2011 RELEASED -
ORDERING INFORMATION
Package Type
Part Number
TO-92
A8290ZI
Z
A8290ZVI
Note
I : A : Ammo Package
B : Bulk Package
V: Halogen free Package
AiT provides all RoHS products
Suffix “ V “ means Halogen free Package
-1-




AiT Semiconductor

A8290 Datasheet Preview

A8290 Datasheet

LED DRIVER

No Preview Available !

AiT Semiconductor Inc.
www.ait-ic.com
PIN DESCRIPTION
A8290
LED DRIVER
WIDE RANGE, LINEAR LED DRIVER
Pin #
1
2
3
TOP VIEW
Symbol
IS
VB
VA
REV1.0 - NOV 2011 RELEASED -
-2-



Part Number A8290
Description LED DRIVER
Maker AiT Semiconductor
Total Page 10 Pages
PDF Download

A8290 Datasheet PDF





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