AS1101_1 AMSCO [austriamicrosystems AG], AS1101_1 Datasheet

no-image

AS1101_1

Manufacturer Part Number
AS1101_1
Description
Low-Dropout LED Drivers
Manufacturer
AMSCO [austriamicrosystems AG]
Datasheet
1.AS1101_1.pdf (13 pages)
A S 11 0 1 , A S 11 0 2 , A S 11 0 3 , A S 11 0 4
L o w - D r o p o u t L E D D r i v e r s
1 General Description
The AS1101/AS1102/AS1103/AS1104 are LED drivers
designed to match current source bias for any color
LED, including white and blue. The devices can drive up
to 4 high-current LEDs, and the LED current is program-
mable using an external resistor (R
The AS1101 LED currents are 460 x I
at an LED cathode voltage (V
I
through R
The AS1102, AS1103, and AS1104 LED currents are
230 x I
I
The AS1101, AS1102, and AS1104 incorporate a chip-
enable feature via pin ON. When the devices are dis-
abled, the supply current drops to less than 1µA.
The AS1101, AS1102, and AS1103 are available in a
6-pin SC70 package; the AS1104 is available in a 8-pin
MSOP package.
Figure 1. Typical Application Diagrams
www.austriamicrosystems.com
SET
SET
ENABLE
V
V
(3V)
(3V)
SET
SET
(typ) at a V
(typ) at a V
SET
R
R
I
I
SET
SET
SET
SET
SET
(per LED, typ) at a V
V
IN
CTRL
CTRL
connected to pin CTRL.
V
ON
IN
SAT
SAT
2 Diode Control with Enable
I1/I2
I1
of 1V, where I
of 1V.
V
V
SAT
SAT
4 Diode Control
GND
I2
GND
AS1101
AS1103
SAT
SAT
) of 150mV and 650 x
I3
SET
SET
of 150mV and 325 x
I3/I4
SET
is the current
).
I4
(per LED, typ)
Revision 1.5
2 Key Features
3 Applications
The AS110x devices are ideal for LED displays and key-
board backlights, as well as lighting management units
for battery powered audio devices such as MP3 and CD
players, mobile and cordless phones, PDAs, portable
DVD players, and consumer electronics.
!
!
!
!
!
!
!
!
!
!
!
ENABLE
ENABLE
V
V
(3V)
(3V)
SET
SET
LED Drivers for Parallel-Connected LEDs
Ultra-Low Voltage Drop: Less Than 150mV (for Li-
ion Battery Support)
Analog and PWM Brightness Control
Up to 80mA per LED (AS1101)
Up to 40mA per LED (AS1102, AS1103, AS1104)
No Electromagnetic Interference, No Switching-
Noise
Current-Matching Requires No External Compo-
nents
Active-Low Shutdown Mode (AS1101, AS1102,
and AS1103)
Low Shutdown-Current: Less Than 1µA
SC70-6 Package (AS1101, AS1102, and AS1103)
MSOP-8 Package (AS1104)
R
R
I
I
SET
SET
SET
SET
V
IN
CTRL
CTRL
V
IN
ON
ON
4 Diode Control with Enable
I1
3 Diode Control with Enable
I1
V
SAT
V
SAT
GND
I2
GND
AS1102
AS1104
I2
I3
I3
I4
D a t a S h e e t
1 - 13

Related parts for AS1101_1

Image
Part Number
Description
Manufacturer
Datasheet
Request R
as1-4-1k0ji
Part Number:
as1-4-1k0ji
Description:
Semi-precision Power Wirewound Resistor
Manufacturer:
Welwyn Components
Datasheet:
AS1-4-1K0JI.pdf (3 pages)
AO32
Part Number:
AO32
Description:
CUB 0.6 ?m CMOS
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AO32.pdf (2 pages)
AO311
Part Number:
AO311
Description:
AO311 is an AND / OR circuit providing the logical function Q = (A.B.C+D+E).
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AO311.pdf (1 page)
AS1100PE-Z
Part Number:
AS1100PE-Z
Description:
Serially Interfaced, 8-Digit LED Driver
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1100PE-Z.pdf (12 pages)
AS1301_1
Part Number:
AS1301_1
Description:
5V/50mA Low Noise Inductorless Boost Converter
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1301_1.pdf (16 pages)
AS1302-BTDT
Part Number:
AS1302-BTDT
Description:
5V/30mA Adaptive Inductorless Boost Converter
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1302-BTDT.pdf (18 pages)
AS1324
Part Number:
AS1324
Description:
1.5MHz, 600mA, DC/DC Step-Down Regulator
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1324.pdf (20 pages)
AS1320_1
Part Number:
AS1320_1
Description:
200mA Step-Up DC-DC Converter
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1320_1.pdf (12 pages)
AS1321_1
Part Number:
AS1321_1
Description:
130mA Step-Up DC-DC Converter
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1321_1.pdf (13 pages)
AS1322_1
Part Number:
AS1322_1
Description:
Low Voltage, Micropower, DC-DC Step-Up Converters
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1322_1.pdf (17 pages)
AO32
Part Number:
AO32
Description:
CUB 0.6 ?m CMOS
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AO32.pdf (2 pages)
AO311
Part Number:
AO311
Description:
AO311 is an AND / OR circuit providing the logical function Q = (A.B.C+D+E).
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AO311.pdf (1 page)
AS1545_1
Part Number:
AS1545_1
Description:
Dual, 12-Bit, 1MSPS, SAR ADC
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1545_1.pdf (34 pages)
AS1701_1
Part Number:
AS1701_1
Description:
1.6W Audio Power Amplifiers
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1701_1.pdf (17 pages)
AS1702_1
Part Number:
AS1702_1
Description:
1.8W Single-Channel Audio Power Amplifiers
Manufacturer:
AMSCO [austriamicrosystems AG]
Datasheet:
AS1702_1.pdf (20 pages)

AS1101_1 Summary of contents

Page 1

...

Page 2

AS1101/AS1102/AS1103/AS1104 Data Sheet - Pinout Pin Assignments Figure 2. Pin Assignments – (Top View) CTRL AS1101 I1/ I3/I4 N GND Pin Descriptions Table 1. Pin Descriptions ...

Page 3

AS1101/AS1102/AS1103/AS1104 Data Sheet - Absolute Maximum Ratings Stresses beyond those listed in Table 2 and functional operation ...

Page 4

AS1101/AS1102/AS1103/AS1104 Data Sheet - Electrical Characteristics AS1101 Electrical Characteristics T = 25°C (unless otherwise ...

Page 5

AS1101/AS1102/AS1103/AS1104 Data Sheet - Table 5. Electrical Characteristics – AS1102, AS1103 Parameter LED-to-LED Current Matching ...

Page 6

AS1101/AS1102/AS1103/AS1104 Data Sheet - Typical Performance Characteristics ...

Page 7

AS1101/AS1102/AS1103/AS1104 Data Sheet - Figure 9. AS1102, AS1103, ...

Page 8

AS1101/AS1102/AS1103/AS1104 Data Sheet - Figure 15. AS1101 vs. ...

Page 9

AS1101/AS1102/AS1103/AS1104 Data Sheet - Application Information Figure 19. Typical Application Diagrams 2 Diode Control with Enable V ...

Page 10

AS1101/AS1102/AS1103/AS1104 Data Sheet - Package Drawings and Markings Figure 20. SC70-6 Package Notes: ...

Page 11

AS1101/AS1102/AS1103/AS1104 Data Sheet - Figure 21. MSOP-8 Package Symbol Millimeters A 1.10 A1 0.10 ...

Page 12

AS1101/AS1102/AS1103/AS1104 Data Sheet - Ordering Information Part Number Marking AS1101-T JO1 AS1102-T JO2 AS1103-T JO3 AS1104-T JO4 AS1104 www.austriamicrosystems.com Description ...

Page 13

AS1101/AS1102/AS1103/AS1104 Data Sheet Copyrights Copyright © 1997-2007, austriamicrosystems AG, Schloss Premstaetten, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered ®. All rights reserved. The material herein may not be reproduced, adapted, merged, trans- lated, stored, or used without the prior written consent of ...

Related keywords