Rainbow Electronics MAX16803 User Manual
Page 2
MAX16803
High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(V
IN
= V
EN
= +12V, C
V5
= 0.1µF to GND, I
V5
= 0, V
CS-
= 0V, V
DIM
= +4V, connect R
SENSE
= 0.58Ω between CS+ and CS- (Note 1).
T
J
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
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, DIM, and EN to GND ...............................-0.3V to +45V
CS+, CS-, V5 to GND ...............................................-0.3V to +6V
OUT Short Circuited to GND Duration
(at V
IN
= +16V) ........................................................60 minutes
Maximum Current Into Any Pin (except IN and OUT).........±20mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TQFN (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 2)
6.5
40.0
V
Ground Current
I
G
I
LOAD
= 350mA
1.4
3
mA
Shutdown Supply Current
I
SHDN
EN ≤ 0.6V
12
40
µA
Guaranteed Output Current
I
OUT
R
SENSE
= 0.55
Ω
350
mA
Output Current Accuracy
35mA < I
OUT
< 350mA
±3.5
%
I
OUT
= 350mA (current pulsed),
12V < V
IN
< 40V
0.5
1.2
Dropout Voltage (Note 3)
∆VDO
I
OUT
= 350mA (current pulsed),
6.5V < V
IN
< 12V
0.5
1.5
V
Current rising, DIM rising to 4V
17
Output Current Slew Rate
Current falling, DIM falling to 0.6V
17
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
80
µs
CURRENT SENSE (Note 4)
Regulated R
SENSE
Voltage
V
RSNS
V
SENSE
= V
CS+
- V
CS-
196
203
210
mV
CS- Voltage Range
-0.3
+4.1
V
Input Current (CS+)
V
CS+
= 220mV
+14
µA
Input Current (CS-)
V
CS+
= 220mV
-84
µA
DIM Input Current
1
µA
DIM Input Voltage High
V
IH
4
V
DIM Input Voltage Low
V
IL
0.6
V
Turn-On Time
t
ON
After DIM rising to 4V (Note 5)
52
µs
Turn-Off Time
t
OFF
After DIM falling to 0.6V (Note 5)
38
µs