Rainbow Electronics MAX16800 User Manual
Page 2
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
= 0.58
Ω 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
EN
≤ 0.6V
12
40
µA
Guaranteed Output Current
I
OUT
R
SENSE
= 0.55Ω
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