D atas he et
A S11 30
1 32 - L E D C r o s s -P le x in g Dr iv e r w i th sc r o l lin g F u n c tio n
1 General Description
The AS1130 is a compact LED driver for 132 single LEDs. The
devices can be programmed via an I²C compatible interface.
The AS1130 offers a 12x11 LED-Matrix with 1/12 cycle rate. The
required lines to drive all 132 LEDs are reduced to 12 by using the
cross-plexing feature optimizing space on the PCB. The whole LED-
Matrix driving 132 LEDs can be analog dimmed from 0 to 30mA in
256 steps (8 bit).
Additionally each of the 132 LEDs can be dimmed individually with 8-
bit allowing 256 steps of linear dimming. To reduce CPU usage up to
6 frames can be stored with individual time delays between frames to
play small animations automatically.
The AS1130 operates from 2.7V to 5.5V and features a very low
shutdown and operational current.
2 Key Features
1MHz I²C-Compatible Interface
132 LEDs in Dot Matrix
Low-Power Shutdown Current
Individual 8-bit LED PWM Control
8-bit Analog Brightness Control
Programmable IRQ pin
Scroll Function
The device offers a programmable IRQ pin. Via a register it can be
set on what event (CP request, Interface time out, Error-detection,
POR, End of Frame or End of Movie) the IRO is triggered.
Also hardware scroll Function is implemented in the AS1130.
The device is available in a ultrasmall 20-pin WL-CSP and an easy
to solder 28-pin SSOP package.
Figure 1. AS1130 - Typical Application
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up to 6 Frames Memory for PWM sets
Supply Voltage Range: 2.7V to 5.5V
Minimum PCB space required
Available packages:
- 20-pin WL-CSP
- 28-pin SSOP (planned)
up to 36 Frames Memory for Animations
3 Applications
The AS1130 is ideal for dot matrix displays in mobile phones, per-
sonal electronic and toys.
Revision 1.07
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8-bit Dot Correction for optimize RGB LED Operation
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Open and Shorted LED Error Detection
AMSCO [ AUSTRIAMICROSYSTEMS AG ]
