MAX16803_09 Datasheet, PDF (2/11 Pages) Maxim Integrated Products – High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator

High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
ABSOLUTE MAXIMUM RATINGS
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
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.
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)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
Supply Voltage Range
Ground Current
Shutdown Supply Current
Guaranteed Output Current
Output Current Accuracy
V_IN
I_G
I_SHDN
I_OUT
(Note 2)
I_LOAD = 350mA
V_EN ≤ 0.6V
R_SENSE = 0.55Ω
35mA < I_OUT < 350mA
6.5
40.0
V
1.4
3
mA
12
40
µA
350
mA
±3.5
%
Dropout Voltage (Note 3)
Output Current Slew Rate
∆VDO
I_OUT = 350mA (current pulsed),
12V < V_IN < 40V
I_OUT = 350mA (current pulsed),
6.5V < V_IN < 12V
Current rising, DIM rising to 4V
Current falling, DIM falling to 0.6V
0.5
1.2
V
0.5
1.5
17
mA/µs
17
Short-Circuit Current
LOGIC INPUT
V_OUT = 0V, V_IN = 12V
400
600
800
mA
EN Input Current
EN Input Voltage High
EN Input Voltage Low
Turn–On Time
CURRENT SENSE (Note 4)
I_EN
V_IH
V_IL
t_ON
EN rising edge to 90% of OUT
100
nA
2.8
V
0.6
V
80
µs
Regulated R_SENSE Voltage
CS- Voltage Range
V_RSNS V_SENSE = V_CS+ - V_CS-
196
203
210
mV
-0.3
+4.1
V
Input Current (CS+)
Input Current (CS-)
DIM Input Current
V_CS+ = 220mV
V_CS+ = 220mV
+14
µA
-84
µA
1
µA
DIM Input Voltage High
DIM Input Voltage Low
Turn-On Time
Turn-Off Time
V_IH
V_IL
t_ON
After DIM rising to 4V (Note 5)
t_OFF After DIM falling to 0.6V (Note 5)
4
V
0.6
V
52
µs
38
µs
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