MAX16835 Datasheet, PDF (2/8 Pages) Maxim Integrated Products – High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver

High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
ABSOLUTE MAXIMUM RATINGS
IN to GND ...............................................................-0.3V to +45V
OUT, EN to GND..........................................-0.3V to (V_IN + 0.3V)
CS+, CS-, and 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 5mm x 5mm
(derate 33.3mW/°C above +70°C) ...........................2666.7mW
Junction to Case Thermal Resistance (θ_JC) (Note 1) ........2°C/W
Junction to Ambient Thermal Resistance (θ_JA) (Note 1) ....30°C/W
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
Note 1: Package thermal resistances obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, see www.maxim-ic.com/thermal-tutorial.
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, CS- = GND, connect R_SENSE = 0.58Ω between CS+ and CS-. T_A = -40°C to
+125°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Notes 2 and 3)
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
1.28
3
mA
35
70
µA
350
mA
±3.5
%
Dropout Voltage (Note 4)
Output Current Slew Rate
ΔVDO
I_OUT = 350mA (current pulsed),
12V < V_IN < 40V
I_OUT = 350mA (current pulsed),
6.5V < V_IN < 40V
Current rising
Current falling
0.55 1.2
V
0.55 1.5
V
7.8
mA/µs
7.8
Short-Circuit Current
LOGIC INPUT
V_IN = 12V, V_CS+ = 0V
400
500
650
mA
EN Input Current
EN Input Voltage High
EN Input Voltage Low
Turn-On Time
CURRENT SENSE
I_EN
V_IH
V_IL
t_ON
V_EN rising edge to 90% of OUT
-2.5 -1.0 -0.2
µA
2.8
V
0.6
V
110 350
µs
Regulated R_SENSE Voltage
Input Current (CS+)
Input Current (CS-)
V_SENSE
V_SENSE = V_CS+ - V_CS-
V_CS+ = 220mV
V_CS+ = 220mV
193
200
207
mV
2.7
7.0
µA
-50 -17.2
µA
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