Datasheet

8 Maxim Integrated
Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
MAX16838
Typical Operating Characteristics (continued)
(V
IN
= V
EN
= 12V, R
RT
= 12.2kI, R
ISET
= 15kI, C
VCC
= 1FF, V
CC
= V
DRV
= V
CFB,
V
DRAIN
= V
COMP
= V
OUT_
, 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
TEMPERATURE (°C)
COMP LEAKAGE CURRENT (nA)
2.2
2.0
1.8
1.6
1.4
1.0
0.8
0.6
0.4
0.2
1.2
2.4
2.6
2.8
3.0
0
-40 -25 -10 5203550658095 110 125
MAX16838 toc15
V
IN
= 12V
V
EN
= HIGH
V
COMP
= 2V
V
DIM
= LOW
OUT_ LEAKAGE CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
OUT_ LEAKAGE CURRENT (nA)
1109565 80-10 5 20 35 50-25
5
10
15
20
25
30
35
40
45
50
55
60
0
-40 125
MAX16838 toc16
V
IN
= 12V
V
EN
= HIGH
V
OUT
= 40V
V
OUT
= 12V
POWER MOSFET R
DSON
vs. TEMPERATURE
POWER MOSFET R
DSON
(I)
0.05
0.10
0.15
0.20
0.25
0.30
0.35
0.40
0.45
0.50
0
MAX16838 toc18
1109565 80-10 5203550-25-40 125
TEMPERATURE (°C)
V
IN
= 12V
OV LEAKAGE CURRENT
vs. TEMPERATURE
OV LEAKAGE CURRENT (nA)
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
-2.0
V
IN
= 12V
V
EN
= HIGH
MAX16838 toc17
1109565 80-10 5203550-25-40 125
TEMPERATURE (°C)