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參數(shù)資料
| 型號(hào)： | AS1103-T |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 元件分類： | LED驅(qū)動(dòng)器 |
| 英文描述： | Quad, 40mA, Simple Drive; Package Type: SC70-6; Miscellaneous: 4 LEDs without Enable |
| 封裝： | SC70-6 |
| 文件頁(yè)數(shù)： | 1/13頁(yè) |
| 文件大?。?/td> | 480K |
| 代理商： | AS1103-T |
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AS1101, AS1102, AS1103, AS1104
Low-Dropout LED Drivers
Data Sheet
www.austriamicrosystems.com
Revision 1.5
1 - 13
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
SET
).
The AS1101 LED currents are 460 x I
SET
(per LED, typ)
at an LED cathode voltage (V
SAT
) of 150mV and 650 x
I
SET
(typ) at a V
SAT
of 1V, where I
SET
is the current
through R
SET
connected to pin CTRL.
The AS1102, AS1103, and AS1104 LED currents are
230 x I
SET
(per LED, typ) at a V
SAT
of 150mV and 325 x
I
SET
(typ) at a V
SAT
of 1V.
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
2 Key Features
!
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)
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.
4 Diode Control with Enable
3 Diode Control with Enable
AS1103
4 Diode Control
V
IN
AS1101
I
SET
2 Diode Control with Enable
V
IN
R
SET
ENABLE
V
SET
(3V)
V
SAT
GND
GND
CTRL
I3/I4
I1/I2
ON
I
SET
R
SET
V
SET
(3V)
CTRL
V
SAT
I1
I2
I3
I4
AS1102
I
SET
V
IN
R
SET
ENABLE
V
SET
(3V)
GND
CTRL
ON
V
SAT
I1
I2
I3
AS1104
V
IN
GND
V
SAT
I1
I2
I3
I4
I
SET
R
SET
ENABLE
V
SET
(3V)
CTRL
ON
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AS1105WL-T | 4-digit, 10mA, serial Int.; Package Type: SOIC-20; Temperature Range: 0 - +70 °C |
| AS1106PE | 8-digit, 5mA, serial Int.; Package Type: PDIP-24; Temperature Range: -40 - +85 °C |
| AS1106PL | 8-digit, 5mA, serial Int.; Package Type: PDIP-24; Temperature Range: 0 - +70 °C |
| AS1106WE-T | 8-digit, 5mA, serial Int.; Package Type: SOIC-24; Temperature Range: -40 - +85 °C |
| AS1106WL-T | 8-digit, 5mA, serial Int.; Package Type: SOIC-24; Temperature Range: 0 - +70 °C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AS1103-XXX-I-A1-D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
| AS1103-XXX-I-A1-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
| AS1103-XXX-I-A2-D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
| AS1103-XXX-I-A2-S | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
| AS1103-XXX-I-A3-D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog Filter |
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