Datasheet

MAX16800
High-Voltage, 350mA, Adjustable Linear
High-Brightness LED (HB LED) Driver
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= +12V, EN = V
IN
, C
V5
= 0.1µF to GND, I
V5
= 0, CS- = GND, connect R
SENSE
= 0.58Ω between CS+ and CS-. Connect OUT to
CS+ (Note 1). T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
IN, OUT, and EN to GND........................................-0.3V to +45V
CS+, V5 to GND .......................................................-0.3V to +6V
CS- to GND............................................................-0.3V to +0.3V
OUT Short Circuited to GND Duration
(at V
IN
= +16V) ........................................................60 minutes
Maximum Current Into Any Pin (except V
IN
and OUT) .......±20mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN 5mm x 5mm
(derate 33.3mW/
°
C above +70
°
C)............................2666.7mW
Operating Junction Temperature Range...........-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Supply Voltage Range V
IN
(Note 1) 6.5 40.0 V
Ground Current I
G
I
LOAD
= 350mA 1.4 3 mA
Shutdown Supply Current I
SHDN
V
EN
 0.6V 12 40 μA
Guaranteed Output Current I
OUT
R
SENSE
= 0.55 350 mA
Output Current Accuracy 35mA < I
OUT
< 350mA ±3.5 %
I
OUT
= 350mA (current pulsed),
12V < V
IN
< 40V
0.5 1.2 V
Dropout Voltage (Note 3) VDO
I
OUT
= 350mA (current pulsed),
6.5V < V
IN
< 40V
0.5 1.5 V
Current rising 5.4
Output Current Slew Rate
Current falling 90
mA/μs
Short-Circuit Current V
OUT
= 0V, V
IN
= 12V 400 600 800 mA
LOGIC INPUT
EN Input Current I
EN
100 nA
EN Input Voltage High V
IH
2.8 V
EN Input Voltage Low V
IL
0.6 V
Turn–On Time t
ON
EN rising edge to 90% of OUT 135 350 μs
CURRENT SENSE (Note 4)
Regulated R
SENSE
Voltage V
RSNS
V
SENSE
= V
CS+
- V
CS-
197 204 211 mV
Input Current (CS+) V
CS+
= 220mV -14 μA
Input Current (CS-) V
CS+
= 220mV +84 μA