MAX16823_09 Datasheet, PDF (2/12 Pages) Maxim Integrated Products – High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection

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
MIN TYP MAX UNITS
Supply Voltage Range
V_IN
Undervoltage Lockout
Ground Current
UVLO
I_G
V_IN rising
V_IN falling
I_OUT1 = I_OUT2 = I_OUT3 = 70mA
Guaranteed Output Current
LED Current-Sense Accuracy
I_OUT
5mA ≤ I_{OUT_} ≤ 70mA
Dropout Voltage (Note 2)
ΔVDO
I_{OUT_} = 70mA, 6.5V ≤ V_IN ≤ 40V
I_{OUT_} = 70mA, 5.5V ≤ V_IN ≤ 6.5V
Output Current Slew Rate
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
V_UTH
V_LTH
LGC Pulldown Current
LGC Clock Period
V_LGC > V_UTH
C_LGC = 15nF
DIMMING INPUT (DIM1, DIM2, DIM3)
DIM_ Logic-Input Bias Current
I_{DIM_}
DIM_ Input-Voltage High
DIM_ Input-Voltage Low
DIM_ Frequency
OUTPUTS (OUT1, OUT2, AND OUT3) (Note 3)
Turn-On Time
DIM_ rising edge to 90% of OUT_ current
Turn-Off Time
DIM_ falling edge to 10% of OUT_ current
Output Current Rise Time
10% to 90%
Output Current Fall Time
90% to 10%
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
12
28
µs
8
18
µs
7
18
µs
6
15
µs
2 _______________________________________________________________________________________