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LDS8680
ABSOLUTE MAXIMUM RATINGS
Parameter
VIN, LEDx, C1± voltage
V OUT voltage
EN/SET voltage
Storage Temperature Range
Junction Temperature Range
Soldering Temperature
Rating
6
6
V IN + 0.7V
-65 to +160
-40 to +125
300
Unit
V
V
V
°C
°C
°C
RECOMMENDED OPERATING CONDITIONS
Parameter
VIN
Ambient Temperature Range
Rating
2.7 to 5.5
-40 to +85
Unit
V
°C
Typical application circuit with external components is shown on page 1.
ELECTRICAL OPERATING CHARACTERISTICS
(Over recommended operating conditions unless specified otherwise) V IN = 3.6V, C1 = 2.2 μF, Cin = Cout = 1 μF, EN = High, T AMB = 25°C
Name
Conditions
Min
Typ
Max
Units
Standby Current
0.6
mA
Shutdown Current
LED Current Accuracy
LED Channel Matching
V EN = 0V
1mA ≤ I LED ≤ 400 mA
(I LED - I LEDAVG ) / I LEDAVG
0.5
±8
±8
μA
%
%
Output Resistance (open loop)
Charge Pump Frequency
1
1-x mode
2-x mode
0.5
1.7
1
Ω
MHz
Output short circuit Current Limit
Input Current Limit
1-x to 2-x
Transition Thresholds at any LED pin
Transition Filter Delay
V OUT < 0.5V
At 200 mA
2
2
150
800
A
A
mV
μs
EN/SET
Input current
EN = V IN = 5.5 V
1
μA
Pin
Logic Level
High
Low
1.4
0.4
V
Thermal Shutdown
Thermal Hysteresis
1
1
Under Voltage Lockout (UVLO)
160
25
2.3
°C
V
Output Over Voltage protection
Threshold
Flash LED Safety Timer
Note:
1. Sample test only
5.6
250
5.9
V
ms
2. Measusured from Flash LED ON command to ILED reaches 90% of regulated level
? 2009 IXYS Corp.
Characteristics subject to change without notice
2
Doc. No. 8680_DS, Rev. N1.0
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