AAT1401 Datasheet, PDF (7/19 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
PWM Input High Threshold Voltage
vs. Input Voltage
1.1
1.0
0.9
0.8
0.7
85°C
0.6
25°C
-40°C
0.5
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
PWM Input Low Threshold Voltage
vs. Input Voltage
1.0
0.9
0.8
0.7
0.6
85°C
0.5
25°C
-40°C
0.4
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
OVP High Threshold Voltage vs. Input Voltage
1.25
85°C
25°C
1.23
-40°C
1.21
1.19
1.17
1.15
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
OVP Low Threshold Voltage vs. Input Voltage
1.20
85°C
1.16
25°C
-40°C
1.12
1.08
1.04
1.00
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
Input Voltage (V)
EN
(5V/div)
0
V_OUT
(10V/div) ₀
I_IN
(100mA/div)
0
I_LED
(20mA/div) ⁰
Startup Waveform
(V_IN = 3.6V; C_IN = 4.7μF, COUT = 0.1μF,
CCOMP = 56nF, RSET = 10KΩ, 6 LEDs)
Time (2ms/div)
EN 0
(5V/div)
V_OUT ⁰
(20V/div)
I_IN
(200mA/div)
0
I_LED
(20mA/div) ⁰
Turn Off
(V_IN = 3.6V; C_IN = 4.7μF, COUT = 0.1μF,
CCOMP = 56nF, RSET = 10KΩ, 6 LEDs)
Time (100µs/div)
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
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