LT3593 Datasheet, PDF (3/16 Pages) Linear Technology – 1MHz White LED Driver with Output Disconnect and One Pin Current Programming

LT3593
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T_A = 25°C. V_IN = 3.6V, V_CTRL = 3.6V, unless otherwise specified.
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
Switch Leakage Current
LED Pin Voltage Drop (V_CAP – V_LED)
LED Pin Leakage Current
CTRL High Threshold
V_SW = 30V
I_LED = 20mA
CTRL = 0, V_CAP = 35V
1
μA
250
mV
1
μA
1.6
V
CTRL Low Threshold
0.4
V
CTRL t_PW
CTRL t_SD
CTRL t_EN
Full-Scale LED Current
LED Current Programming Resolution
Programming Pulse Width (Note 3)
Time from CTRL = 0 to Shutdown
Time from CTRL = 1 to Enable
V_CAP = 16V
V_CAP = 16V
Linear Increments
250
ns
95
128 200
μs
95
128 200
μs
19
20
21
mA
l 18.5
20
21.5
mA
625
μA
LED Current Limit
45
mA
CTRL Pin Bias Current
Overvoltage Protection
V_CTRL = 5.5V
1
μA
l 36
38
40
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3593E is guaranteed to meet performance specifications
from 0°C to 85°C operating junction temperature range. Specifications
over the –40°C to 85°C operating junction temperature range are assured
by design, characterization and correlation with statistical process
controls.
Note 3: Guaranteed by design.
3593f
3