MAX16838ATP/V+ Maxim Integrated, MAX16838ATP/V+ Datasheet - Page 4

• Manufacturer Part Number: MAX16838ATP/V+
• Description: LED Lighting Drivers Integrated 2-Channel High-Brightness LED Drivers with High-Voltage DC-DC Controller
• Manufacturer: Maxim Integrated

Specifications of MAX16838ATP/V+

• Input Voltage: 4.75 V to 40 V
• Maximum Supply Current: 3.1 mA
• Power Dissipation: 2051 mW

Integrated, 2-Channel, High-Brightness LED Driver
with High-Voltage Boost and SEPIC Controller
ELECTRICAL CHARACTERISTICS (continued)
(V
= V
values are at T
4
LED CURRENT SINKS
OUT_ Current Range
LED Strings Current Matching
Maximum Peak-to-Peak Boost
Ripple
Output Current Accuracy
OUT_ Leakage Current
Current Foldback Threshold
Voltage
CFB Input Bias Current
ENABLE COMPARATOR (EN)
Enable Threshold
Enable Threshold Hysteresis
Enable Input Current
DIM LOGIC
DIM Input Logic-High
DIM Input Logic-Low
Hysteresis
DIM Input Current
DIM to LED Turn-On Time
DIM to LED Turn-Off Time
I
I
LED FAULT DETECTION
LED Shorted Fault Indicator
Threshold
LED String Shorted Shutoff
Threshold
Shorted LED Detection FLAG
Delay
OUT_
OUT_
IN
CS
______________________________________________________________________________________
= V
= V
Rise Time
Fall Time
EN
LEDGND
PARAMETER
= 12V, R
A
= 25NC.) (Note 2)
= V
RT
DIM
= 12.2kI, R
= V
PGND
ISET
SYMBOL
V
= V
V
DIM_HYS
V
EN_HYS
I
OUT_
I
= 15kI, C
V
ENHI
V
DIM
t
SGND
t
IH
R
IL
F
= 0V, V
V
I
1% I
R
I
R
I
= 75kI
V
0 P V
V
V
V
V
V
Rise time measured from 10% to 90%
Fall time measured from 90% to 10%
T
T
OUT_
OUT_
OUT_
VCC
A
A
DIM
DIM
EN
EN
DIM
DIM
DIM
ISET
ISET
= +125NC
= +125NC
OUT
rising
= 40V
CFB
= 5V, V
= 0V, V
= 5V or 0
rising edge to 90% of set current
falling edge to 10% of set current
GATE
= 1FF, V
= 100mA, R
= 15kI
= 100mA,
= 15kI
= 20mA, R
variation, I
P 1.3V
= V
OUT_
OUT_
CC
CONDITIONS
NDRV
ISET
= V
ISET
= 1.0V
= 40V
OUT
, T
DRV
T
T
T
= 15kI
A
A
A
A
= 100mA,
= T
= +25NC
= -40NC to +125NC
= -40NC to +125NC
= V
J
CFB
= -40NC to +125NC, unless otherwise noted. Typical
, DRAIN, COMP, OUT_, FLT = unconnected, V
18.7
-500
-600
3.55
MIN
-0.3
1.1
2.1
3.1
6.8
20
97
95
50
10
6
TYP
1.23
1.24
100
100
+50
110
290
121
120
0.3
4.2
7.7
20
71
50
1
6
MAX
+700
+100
1000
21.3
+0.3
1.34
4.85
150
103
105
300
700
600
500
0.5
0.8
5.5
9.5
8.6
Q2
UNITS
mA
mA
mA
mA
mV
mV
nA
FA
nA
nA
ns
ns
ns
ns
Fs
%
V
V
V
V
V
V
V
OV