AAT1401 Datasheet, PDF (5/19 Pages) List of Unclassifed Manufacturers – FOUR-CHANNEL DIGITAL STILL CAMERA POWER SUPPLY

DATA SHEET
AAT1401
Serial LED Driver with Filtered PWM and 32-Step S2C Dimming Control
Typical Characteristics
Quiescent Current vs. Input Voltage
500
480
460
440
420
85°C
400
25°C
-40°C
380
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Shutdown Current vs. Input Voltage
0.10
85°C
0.08
25°C
-40°C
0.06
0.04
0.02
0.00
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
Efficiency vs. Output Current
(RSET = 10KΩ, L = 10µH, 6 LEDs)
90
85
80
75
70
65
60
55
VIN = 2.7V
VIN = 3.0V
50
VIN = 3.6V
45
VIN = 4.2V
40
VIN = 5.0V
35
VIN = 5.5V
30
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32
Output Current (mA)
Sink Current Accuracy vs. Temperature
(VIN = 3.6V, RSET = 15kΩ)
22.0
21.2
20.4
19.6
18.8
18.0
-40
-15
10
35
60
85
Temperature (°C)
LED Current Accuracy vs. S²C
(VIN = 3.6V, L = 10µH)
32
RSET = 10KΩ
28
RSET = 15KΩ
24
RSET = 20KΩ
RSET = 25KΩ
20
RSET = 30KΩ
16
12
8
4
0
1
5
9
13
17
21
25
29
33
S²C Data
Sink Current Accuracy vs. Temperature
(VIN = 3.6V, RSET = 10kΩ)
32.0
31.6
31.2
30.8
30.4
30.0
-40
-15
10
35
60
85
Temperature (°C)
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202113A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • June 27, 2012
5