Rainbow Electronics MAX1583 - Manual (Page 2)

MAX1583
White LED Camera-Flash
Boost Converter
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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)
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.
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
PARAMETER CONDITIONS MIN TYP MAX UNITS
Supply Voltage 2.6 5.5 V
Undervoltage-Lockout Threshold V IN rising, hysteresis = 40mV (typ) 2.10 2.38 2.55 V
OUT Input Bias Current 4 10 15 µA
LX switching, LEDs off 2
Quiescent-Current Precharge Mode
LX not switching, LEDs off 0.32
mA
T A = +25 °C 0.01 0.5
Quiescent-Current Shutdown Mode EN1 = EN2 = GND
T A = +85 °C 0.1
µA
Output Overvoltage-Lockout Threshold
V OUT rising, precharge or movie mode,
hysteresis = 500mV (typ)
22.5 24 25.5 V
LED Regulation Voltage Threshold V LED rising, movie mode 0.5 0.6 0.7 V
T
A
= +25 °C 0.01 1
LED Input Leakage Current Precharge mode
T A = +85 °C 0.1
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 R MOV = 2k Ω, V
LED = 0.5V -7 ±1 +7 %
MOV Current-Source Dropout Voltage I LED = 25mA, R MOV = 2k Ω 0.1 V
Current-Source Multiplier in Strobe Mode I LED / I STB , I STB up to 300µA 1000 A/A
Current-Source Accuracy, Strobe Mode R STB = 2k Ω, V
LED = 3.0V -10 ±1.5 +10 %
STB Current-Source Dropout Voltage I LED = 250mA, R STB = 2k Ω 0.9 V
MAX1583X 800 1000 1200
MAX1583Y 400 500 600 Current Limit
MAX1583Z 200 250 300
mA
POK Low Voltage I
SINK
= 1mA 0.05 0.1 V
T A = +25 °C 0.01 1
POK Leakage
T A = +85 °C 0.1
µA