AAT2400 Datasheet, PDF (6/32 Pages) Skyworks Solutions Inc. – Sixteen-Channel White LED Driver Solution

DATA SHEET
AAT2400/2401
Sixteen-Channel White LED Driver Solution
with Full LED Current and Timing Control
Electrical Characteristics¹
V_IN=24V; C_IN = 4.7µF, C_OUT = 4.7µF; C_VCC = 2.2µF; L₁ = 10µH; R_SET =10.2kΩ (I_CSx = 60mA); T_A = -40^oC to 85^oC unless
otherwise noted. Typical values are at T_A = 25^oC.
Symbol Description
Power Supply, Current Sinks
V_IN
Input Voltage Range
V_UVLO
Under-Voltage Threshold
V_OUT
I_{Q_2400}
I_{Q_2401}
I_SD
I_{EN_LEAKAGE}
I_ADDR0, I_ADDR1
V_OVP
R_DS(ON)LO
I_LIMIT
F_OSC
F_SYNC
T_SS
I_CSx / I_RSET
Output Voltage Range
Quiescent Current of AAT2400 (no
switching)
Quiescent Current of AAT2401
VIN Pin Shutdown Current
Enable Leakage Current
Input Current to ADDR0 and ADDR1
Over-Voltage Threshold
Over-Voltage Hysteresis
Low Side Switch On-Resistance
Low Side Switch Current Limit
Oscillator Frequency
Sync Frequency
Soft-Start
Current Set Ratio
V_Cx
I_CSx
I_CSx-Matching
Current Sink Voltage
Current Sink Accuracy
Current Matching Between Any Sink
Channel
Conditions
Min Typ Max Units
V_IN Rising
Hysteresis
V_IN Falling
V_IN = 10.8 to 28.0V
I_CSx = 0mA, V_CSx = 1V
I_CSx = 0mA, V_CSx = 1V
CSn = IN, EN = Logic Low; includes CSx
+ LX leakage current
EN = 5V
ADDR0 = 5V, ADDR1 = 5V
V_OUT Rising
V_OUT Falling
V_OUT = 35V
I_CSx/I_RSET, V_RSET = 0.6V nom, Full Scale Dot
Correction
EN = Logic High, I_CSx = 60mA (R_SET =
10.2kΩ)
I_CSx = 60mA
I_CSx= 60mA
10.8
8.5
V_IN + 3V
1.1
4.5
500
300
-2.5
-2
500
3
5
25
1.2
100
180
600
1
1024
0.8
28.0
10
40
5
100
1.3
6.5
700
900
+2.5
+2
V
V
mV
V
V
mA
mA
µA
µA
µA
V
mV
mΩ
A
kHz
kHz
ms
A/A
V
%
%
V_Cx(SHORT)
Shorted Diode(s) Detection Threshold I_CSx= 60mA
3V
Logic Level Inputs: EN, SYNC, VSYNC, GSCLK, SDI, SCLK, CSB
V_I(L)
V_I(H)
Input Logic Threshold Low
Input Logic Threshold High
V_{I(H)_EN}
Enable Logic Threshold High
0.4
V
1.4
V
2.5
V
6
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202307A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • August 24, 2012