AAT1282 Datasheet, PDF (4/22 Pages) Skyworks Solutions Inc. – 2A Driver for High Intensity LED Camera Flash

DATA SHEET
AAT1282
2A Driver for High Intensity LED Camera Flash
Electrical Characteristics¹
V_IN = 3.6V; C_IN = 2.2μF; C_OUT = 2.2μF; L = 1μH; R_SET = 80.6kΩ; T_A = -40°C to +85, unless otherwise noted. Typical
values are T_A = 25°C.
Symbol Description
Power Supply
V_IN
Input Voltage Range
I_IN(Q)
Supply Current
I_SHDN(MAX)
I_FL(TOTAL)
I_FL(MATCH)
Shutdown Current
Total Output Current, Flash Mode
FLOUTA and FLOUTB Current
Matching
I_MM(TOTAL) Total Output Current, Movie-mode
f_OSC
Switching Frequency
t_DEFAULT
Default ON time
T_SD
Thermal Shutdown Threshold
T_SD(HYS) Thermal Shutdown Hysteresis
I²C Control – SDA, SCL
V_IL
V_IH
I_I
V_OL
f_SCL
t_LOW
t_HIGH
t_{HD_STA}
t_{SU_STA}
t_{SU_DAT}
t_{HD_DAT}
t_{SU_STO}
t_BUF
Input Threshold Low
Input Threshold High
Input Current
Output Logic Low (SDA)
SCL Clock Frequency
SCL Clock Low Period
SCL Clock High Period
Hold Time START Condition
Setup Time for Repeat START
SDA Data Setup Time
SDA Data Hold Time
Setup time for STOP Condition
Bus Free Time between STOP and
START Condition
EN, FLEN Logic Control
V_EN(L),
V_FLEN(L)
V_EN(H),
V_FLEN(H)
t_{FLEN_OND}
t_{FLEN_OFFD}
EN, FLEN Input Low Threshold
EN, FLEN Input High Threshold
FLEN ON Delay Time
FLEN OFF Delay Time
Conditions
EN = IN; FLEN = AGND; Set load = 2A; R_SET =
80.6k
EN = FLEN = AGND
R_SET = 80.6k; FLOUTA + FLOUTB
R_SET = 80.6k; Movie-mode Current Set = 100%;
FLOUTA + FLOUTB
T_A = 25°C
C_T = 47nF
I_PULLUP = 3mA
EN = AGND
EN = AGND
Min
2.7
1800
1.5
1.4
-1.0
0
1.3
0.6
0.6
0.6
100
0.6
1.3
1.4
Typ
0.57
2000
10
274
2.0
600
140
15
40
10
Max
5.5
1
1.0
2200
2.5
0.4
1.0
0.4
400
0.9
0.4
Units
V
mA
μA
mA
%
mA
MHz
ms
C
C
V
V
μA
V
kHz
μs
μs
μs
μs
ns
μs
μs
μs
V
V
μs
μs
1. The AAT1282 is guaranteed to meet performance specifications over the -40°C to +85°C operating temperature range and is assured by design, characterization, and correla-
tion with statistical process controls.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
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202305C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 20, 2013