LED Driver. AS1100 Datasheet

AS1100 Driver. Datasheet pdf. Equivalent

Part AS1100
Description Serially Interfaced 8-Digit LED Driver
Feature www.DataSheet4U.com Data Sheet AS1100 Serially Interfaced, 8-Digit LED Driver AS1100 Key Features .
Manufacture AMSCO
Datasheet
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AS1100
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Data Sheet AS1100
Serially Interfaced, 8-Digit LED Driver
AS1100
DATA SHEET
Key Features
- 10MHz Serial Interface
- Individual LED Segment Control
- Decode/No-Decode Digit Selection
- 20µA Low-Power Shutdown (Data Retained)
- Extremely low Operating Current 0.5mA in open loop
- Digital and Analog Brightness Control
- Display Blanked on Power-Up
- Drive Common-Cathode LED Display
- Software Reset1
- Optional External clock
- 24-Pin DIP and SO Packages
- Fully compatible to MAX7219
Every individual segment can be addressed and updated
separately. Only one external resistor is required to set the
current through the LED display. Brightness can be
controlled either in an analog or digital way. The user can
choose the internal code-B decoder to display numeric
digits or to address each segment directly. The AS1100
features an extremely low shutdown current of only 20µA.
and an operational current of less than 500µA. The number
of visible digits can be programmed as well. The AS1100
can be reset by software and an external clock can be used.
Several test modes support easy debugging.
The AS1100 is fully compatible to the MAX 7219. AS1100 is
offered in a 24 pins PDIP and SOIC package.
General Description
Applications
- Bar-Graph Displays
The AS1100 is an LED driver for 7 segment numeric
- Industrial Controllers
displays of up to 8 digits. The AS1100 can be programmed
- Panel Meters
via a conventional 4 wire serial interface. It includes a BCD
- LED Matrix Displays
code-B decoder, a multiplex scan circuitry, segment and
- White Goods
display drivers and a 64 Bit memory. The memoryDisatuasSedhetoet4U.com
store the LED settings, so that continuous reprogramming is
not necessary.
DataShee
TOP
DIN 1
DIG0 2
DIG4 3
GND 4
DIG6 5
DIG2 6
DIG3 7
DIG7 8
GND 9
DIG5 10
DIG1 11
LOAD 12
24 DOUT
23 SEG D
22 SEG DP
21 SEG E
20 SEG C
19 VDD
AS1100 18 ISET
17 SEG G
16 SEG B
15 SEG F
14 SEG A
13 CLK
DIP/SO 24
Pin Configuration
1 Software Reset and external clock are not supported by
MAX7219
9.53k
MOSI
µP I/O
SCK
+5V
19
VDD
18 ISET DIG0-DIG7
1 DIN
8 Digits
12 LOAD
1
9
CLK
SEG A-G
SEP DP
GND GND
8 Segments
4
8-Digit µP Display
Typical Application Circuit
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Revision 1.32, Oct. 2004
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AS1100
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Data Sheet AS1100
Absolute Maximum Ratings
Voltage (with respect to GND)
VDD
DIN, CLK, LOAD
All Other Pins
Current
DIG0–DIG7 Sink Current
SEGA–G, DP Source Current
Continuous Power Dissipation (TA = +85°C)
Narrow Plastic DIP (derate 13.3mW/°C above
+70°C
Wide SO (derate 11.8mW/°C above +70°C)
Operating Temperature Ranges (TMIN to TMAX)
AS1100xL
AS1100xE
Storage Temperature Range
Package body temperature 2
-0.3V to 6V
-0.3V to 6V
-0.3V to (VDD +0.3V)
500mA
100mA
1066mW
941mW
0°C to +70°C
-40°C to +85°C
-65°C to +150°C
+240°C
et4U.com
Electrical Characteristics
DataSheet4U.com
(VDD = 5V, RSET = 9.53k±1%, TA = TMIN to TMAX, unless otherwise noted.)
Parameter
Operating Supply Voltage
Shutdown Supply Current
Operating Supply Current
Display Scan Rate
Digit Drive Sink Current
Segment Drive Source Current
Segment Drive Current
Matching
Digit Drive Source Current
Segment Drive Sink Current
Logic Inputs
Symbol Conditions
VDD
IDDSD
All digital inputs at VDD or GND, TA =
+25°C
RSET = open circuit
IDD All segments and decimal point on, ISEG = -
40mA
fOSC 8 digits scanned
IDIGIT VOUT = 0.65V
ISEG TA = +25°C, VOUT = (VDD -1V)
ISEG
IDIGIT Digit off, VDIGIT = (VDD -0.3V)
ISEG Segment off, VSEG = 0.3V
Min
4.0
500
320
-30
-2
5
Typ Max
5.0 5.5
20 50
500
330
800 1300
-40 -45
3.0
DataShee
Units
V
µA
µA
mA
Hz
mA
mA
%
mA
mA
2 The reflow peak soldering temperature (body temperature) is specified according IPC/JEDEC J-STD-020B “Moisture/Reflow Sensitivity
Classification for non-hermetic Solid State Surface Mount Devices”.
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