MAX16823_15 Datasheet, PDF (2/12 Pages) Maxim Integrated Products – High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection

MAX16823
High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
Absolute Maximum Ratings
IN to GND...............................................................-0.3V to +45V
OUT1, OUT2, OUT3, DIM1, DIM2,
DIM3 to GND...........................................-0.3V to (V_IN + 0.3V)
REG, LGC, LEDGOOD to GND...............................-0.3V to +6V
CS1, CS2, CS3 to GND........................................-0.3V to +0.5V
OUT1, OUT2, OUT3 Short Circuited
to GND Duration (V_IN + 16V)......................................... 60min
Maximum Current into Any Pin
(except IN, OUT1, OUT2, OUT3)..................................±20mA
Continuous Power Dissipation (T_A = +70°C)
16-Pin TQFN 5mm x 5mm
(derate 33.3mW/°C above +70°C)..........................2666mW
16-Pin TSSOP (derate 26.1mW/°C above +70°C)..2088.8mW
Operating 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 = 12V, C_REG = 0.1μF, I_REG = 0, C_LGC = 15nF, V_DIM1 = V_DIM2 = V_DIM3 = 3.4V, R_{CS_} = 2.85Ω from CS_ to GND, T_J = T_A = -40°C
to +125°C, unless otherwise noted. Typical values are at T_A = +25°C.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
Supply Voltage Range
Undervoltage Lockout
Ground Current
Guaranteed Output Current
LED Current-Sense Accuracy
Dropout Voltage (Note 2)
Output Current Slew Rate
V_IN
UVLO
I_G
I_OUT
∆VDO
V_IN rising
V_IN falling
I_OUT1 = I_OUT2 = I_OUT3 = 70mA
5mA ≤ I_{OUT_} ≤ 70mA
I_{OUT_} = 70mA, 6.5V ≤V_IN ≤ 40V
I_{OUT_} = 70mA, 5.5V ≤ V_IN ≤ 6.5V
Short-Circuit Current
LEDGOOD
V_{OUT_} = 0V
LEDGOOD Output Logic Low
LGC Pullup Resistor
V_OL
I_SINK = 2mA
LGC Input Upper Threshold
LGC Input Lower Threshold
LGC Pulldown Current
V_UTH
V_LTH
LGC Clock Period
DIMMING INPUT (DIM1, DIM2, DIM3)
V_LGC > V_UTH
C_LGC = 15nF
DIM_ Logic-Input Bias Current
DIM_ Input-Voltage High
I_{DIM_}
DIM_ Input-Voltage Low
DIM_ Frequency
MIN TYP MAX UNITS
5.5
40
V
4.4
4.9
5.4
V
4.0
4.6
5.2
1.5
3
mA
100
mA
5
%
0.3
0.7
V
0.3
0.8
8
mA/µs
180
mA
0.4
V
65
100 135
kΩ
2.53
V
0.8
V
20
mA
0.77 1.5
2.3
ms
-0.1
+0.1
µA
2.4
V_IN
V
0.6
V
0
3
kHz
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