MAX16812 Datasheet, PDF (5/21 Pages) Maxim Integrated Products – Integrated High-Voltage LED Driver with Analog and PWM Dimming Control

Integrated High-Voltage LED Driver
with Analog and PWM Dimming Control
Typical Operating Characteristics
(V_IN = V_EN = 12V, C_{L_REG} = 3.3µF, C_{H_REG} = 1µF, V_TGRM = 0V, T_A = +25°C, unless otherwise noted.)
RDS(ON) vs. ILX
0.45
0.40
0.35
TA = +125°C
0.30
0.25
0.20
TA = +25°C
0.15
TA = -40°C
0.10
0.05
0
1.0
1.5
2.0
2.5
3.0
ILX (A)
RDS(ON) vs. VGT
2.0
1.8
TA = +25°C
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
2.2 2.8 3.4 4.0 4.6 5.2 5.8 6.4 7.0
VGT (V)
SWITCH CURRENT LIMIT
vs. TEMPERATURE
3.300
3.250
3.200
3.150
3.100
3.050
3.000
2.950
2.900
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE
30
25
20
V_REF vs. TEMPERATURE
1.25
1.24
IN UVLO THRESHOLD
vs. TEMPERATURE
5.20
V_IN RISING
5.15
15
1.23
5.10
10
5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
1.22
IREF = 10µA
1.21
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
5.05
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
IN UVLO THRESHOLD
vs. TEMPERATURE
5.10
5.09 ^{VIN FALLING}
5.08
5.07
5.06
5.05
5.04
5.03
5.02
5.01
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
EN UVLO THRESHOLD
vs. TEMPERATURE
1.50
1.45 ^{VEN RISING}
1.40
1.35
1.30
1.25
1.20
1.15
1.10
1.05
1.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
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