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White LED Camera-Flash
Boost Converter
ABSOLUTE MAXIMUM RATINGS
IN, EN1, EN2, POK to GND ......................................-0.3V to +6V
LX, OUT to GND .....................................................-0.3V to +30V
STB, MOV to GND .......................................-0.3V to (V IN + 0.3V)
LED to GND..............................................-0.3V to (V OUT + 0.3V)
I LX ...................................................................................1.2A RMS
Continuous Power Dissipation (T A = +70 ° C)
10-Pin 3mm x 3mm TDFN
(derate 24.4mW/ ° C above +70 ° C) .............................1951mW
Operating Temperature Range ...........................-40 ° C to +85 ° C
Junction Temperature ......................................................+150 ° C
Storage Temperature Range .............................-65 ° C to +150 ° C
Lead Temperature (soldering, 10s) .................................+300 ° C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(V IN = V EN1 = 3.0V, V EN2 = 0V, V OUT = 20V, C OUT = 10μF, T A = -40°C to +85°C, unless otherwise noted. Typical values are at
T A = +25 ° C. Note 1)
PARAMETER
Supply Voltage
Undervoltage-Lockout Threshold
OUT Input Bias Current
Quiescent-Current Precharge Mode
CONDITIONS
V IN rising, hysteresis = 40mV (typ)
LX switching, LEDs off
LX not switching, LEDs off
MIN
2.6
2.10
4
TYP
2.38
10
2
0.32
MAX
5.5
2.55
15
UNITS
V
V
μA
mA
Quiescent-Current Shutdown Mode
EN1 = EN2 = GND
T A = +25 ° C
T A = +85 ° C
0.01
0.1
0.5
μA
Output Overvoltage-Lockout Threshold
LED Regulation Voltage Threshold
V OUT rising, precharge or movie mode,
hysteresis = 500mV (typ)
V LED rising, movie mode
22.5
0.5
24
0.6
25.5
0.7
V
V
LED Input Leakage Current
Precharge mode
T A = +25 ° C
T A = +85 ° C
0.01
0.1
1
μA
MOV, STB Regulation Voltage
600
mV
Current-Source Multiplier in Movie Mode
I LED / I MOV , I MOV up to 300μA
100
A/A
Current-Source Accuracy, Movie Mode
MOV Current-Source Dropout Voltage
Current-Source Multiplier in Strobe Mode
Current-Source Accuracy, Strobe Mode
STB Current-Source Dropout Voltage
Current Limit
POK Low Voltage
POK Leakage
R MOV = 2k Ω , V LED = 0.5V
I LED = 25mA, R MOV = 2k Ω
I LED / I STB , I STB up to 300μA
R STB = 2k Ω , V LED = 3.0V
I LED = 250mA, R STB = 2k Ω
MAX1583X
MAX1583Y
MAX1583Z
I SINK = 1mA
T A = +25 ° C
T A = +85 ° C
-7
-10
800
400
200
±1
0.1
1000
±1.5
0.9
1000
500
250
0.05
0.01
0.1
+7
+10
1200
600
300
0.1
1
%
V
A/A
%
V
mA
V
μA
2
_______________________________________________________________________________________
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