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PDF AS1101 Data sheet ( Hoja de datos )
| Número de pieza | AS1101 | |
| Descripción | (AS1101 - AS1104) Low-Dropout LED Drivers | |
| Fabricantes | AMSCO | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AS1101 (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
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austriamicrosystems
AS1101, AS1102, AS1103, AS1104
Low-Dropout LED Drivers
Data Sheet
1 General Description
2 Key Features
The AS110x family are LED drivers providing matched
! LED Drivers for Parallel-Connected LEDs
current source bias for any color LED, including white
and blue. LED current is programmable using an exter-
nal resistor.
! Ultra-Low Voltage Drop: Less Than 150mV (for Li-
ion Battery Support)
! Analog and PWM Brightness Control
The AS1101 LED currents are typical 460 x ISET (per
LED) at an LED cathode voltage of 150mV and typical
650 x ISET at an LED cathode voltage of 1V.
! Up to 80mA per LED (AS1101)
! Up to 40mA per LED (AS1102, AS1103, AS1104)
! No Electromagnetic Interference, No Switching-
The AS1102, AS1103, and AS1104 LED currents are
Noise
typical 230 x ISET (per LED) at an LED cathode voltage
of 150mV and typical 325 x ISET at an LED cathode volt-
age of 1V where ISET is the current through the external
resistor connected to the CTRL pin.
! Current-Matching Requires No External Compo-
nents
! Active-Low Shutdown Mode (AS1101, AS1102,
and AS1103)
The AS110x family can drive up to 4 high-current LEDs.
! Low Shutdown-Current: Less Than 1µA
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 devices are pin-to-pin compatible to the FAN5611,
FAN5612 and FAN5614.
! SC70-6 Package (AS1101, AS1102, and AS1103)
! MSOP-8 Package (AS1104)
! Pin-to-Pin Compatible to FAN5611, FAN5612, and
FAN5614
The AS1101, AS1102, and AS1103 are available in a
3 Applications
6-pin SC70 package; the AS1104 is available in aD8a-tpainSheet4U.com
MSOP package.
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.
Figure 1. Typical Application Diagrams
DataShee
2 Diode Control with On/Off
VIN
3 Diode Control with On/Off
VIN
VSET(3V)
ENABLE
ISET
RSET
I1/I2 I3/I4
CTRL AS1101
ON GND
VSET(3V)
ENABLE
ISET
RSET
I3 I2 I1
CTRL AS1102
ON GND
4 Diode Control
VIN
VSET(3V)
ISET
RSET
I4 I3 I2
CTRL AS1103
GND
I1
4 Diode Control with On/Off
VIN
VSET(3V)
ENABLE
ISET
RSET
I4 I3 I2
CTRL AS1104
ON GND
I1
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AS1101, AS1102, AS1103, AS1104
Data Sheet
austriamicrosystems
6 Typical Performance Characteristics
ISET vs V CTRL
100
90
80
70
60
50
40
30
20
10
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1
V CTRL (V )
ISET vs V SET (RSET = 30k Ω)
100
90
80
70
60
50
40
30
20
10
0
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0
VSET (V)
et4U.com
35
30
25
20
15
10
5
0.0
AS1101 ILED vs V SAT
30
ISET = 50µA
25
20
ISET = 25µA
15
10
5
0.2 0.4 0.6 0.8 1.0
0.0
VSAT (V )
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AS1102-AS1104 ILED vs VSAT
ISET = 100µA
ISET = 50µA
ISET = 25µA
0.2 0.4 0.6 0.8
VSAT (V)
1.0
22
20
18
16
14
12
10
8
6
4
0
AS1102-AS1104 ILED vs RSET
V s at=0.6V
V s at=0.5V
V s at=0.4V
V s at=0.3V
20 40 60 80 100 120 140 160
RSET (k Ω )
AS1101 ILED vs RSET
22
20
18
16
14 Vsat=0.30V
12 Vsat=0.25V
10 Vsat=0.20V
8 Vsat=0.15V
6 Vsat=0.10V
4 Vsat=0.05V
2
10 20 30 40 50 60 70 80 90 100
RSET (k Ω )
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35
30
25
20
15
10
5
0
0
AS1102-AS1104 ILED vs RSET
V s at=1V
V s at=0.6V
V s at=0.3V
V s at=0.15V
20 40 60 80 100 120 140 160 180 200
RSET (k Ω )
ILED vs Te m pe rature (VLED = 0.25V, ISET = 50µA)
13
12.5
12
11.5
-40 -20
0 20 40 60
Te m pe rature (°C)
11
80 100
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AS1101, AS1102, AS1103, AS1104
Data Sheet
Figure 8. MSOP-8 Package
austriamicrosystems
Package Drawings and Markings
et4U.com
Notes:
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1. All dimensions are in millimeters (angles in degrees), unless otherwise specified.
2. Datums B and C to be determined at datum plane H.
3. Dimensions D and E1 are to be determined at datum plane H.
4. Dimensions D2 and E2 are for top package; dimensions D and E1 are for bottom package.
5. Cross section A-A to be determined at 0.18 to 0.22mm from the leadtip.
6. Dimension D and D2 does not include mold flash, protrusions, or gate burrs.
7. Dimension E1 and E2 does not include inter-lead flash or protrusion.
Symbol
A
A1
A2
D
D2
E
E1
E2
E3
E4
R
R1
t1
t2
DataSheet4U.com
Millimeters
1.10
0.10
0.86
3.00
2.95
4.90
3.00
2.95
0.51
0.51
0.15
0.15
0.31
0.41
MSOP-8 Package Outline
± Tolerance
Symbol
Max b
±0.05
b1
±0.05
c
±0.10
c1
±0.10
θ1
±0.15
θ2
±0.10
θ3
±0.10
L
±0.13
L1
±0.18
aaa
+0.15 to -0.08
bbb
+0.15 to -0.08
ccc
±0.08
e
±0.08
S
Millimeters
0.33
0.30
0.18
0.15
3.0
12.0
12.0
0.55
0.95 BSC
0.10
0.08
0.25
.5 BSC
.525 BSC
± Tolerance
+0.07 to -0.08
±0.05
±0.05
+0.03 to -0.02
±3.0
±3.0
±3.0
±0.15
-
-
-
-
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11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AS1101.PDF ] | |
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