MAX16838_14 Datasheet, PDF (8/21 Pages) Maxim Integrated Products – Integrated, 2-Channel, High-Brightness LED Driver

MAX16838
Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
Typical Operating Characteristics (continued)
(VIN = VEN = 12V, RRT = 12.2kI, RISET = 15kI, CVCC = 1FF, VCC = VDRV = VCFB, VDRAIN = VCOMP = VOUT_, FLT = unconnected,
V_OV = V_CS = V_LEDGND = V_DIM = V_PGND = V_SGND = 0V, V_GATE = V_NDRV, T_A = +25NC, unless otherwise noted.)
COMP LEAKAGE CURRENT
vs. TEMPERATURE
3.0
2.8 _{VIN = 12V}
2.6 _{VEN = HIGH}
2.4 _{VCOMP = 2V}
2.2 _{VDIM = LOW}
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUT_ LEAKAGE CURRENT
vs. TEMPERATURE
60
55 VIN = 12V
50 ^{VEN = HIGH}
45
VOUT = 40V
40
VOUT = 12V
35
30
25
20
15
10
5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OV LEAKAGE CURRENT
vs. TEMPERATURE
2.0
VIN = 12V
1.5 _{VEN = HIGH}
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
POWER MOSFET RDSON
vs. TEMPERATURE
0.50
0.45 ^{VIN = 12V}
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
8  
Maxim Integrated