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MAX16812 Datasheet(PDF) 6 Page - Maxim Integrated Products

Part No. MAX16812
Description  Integrated High-Voltage LED Driver with Analog and PWM Dimming Control
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Maker  MAXIM [Maxim Integrated Products]
Homepage  http://www.maxim-ic.com
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MAX16812 Datasheet(HTML) 6 Page - Maxim Integrated Products

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Integrated High-Voltage LED Driver
with Analog and PWM Dimming Control
6
_______________________________________________________________________________________
Typical Operating Characteristics (continued)
(VIN = VEN = 12V, CL_REG = 3.3µF, CH_REG = 1µF, VTGRM = 0V, TA = +25°C, unless otherwise noted.)
VL_REG vs. IL_REG
IL_REG (mA)
18
16
12 14
4
6
8
10
2
4.6
4.7
4.8
4.9
5.0
5.1
5.2
5.3
5.4
5.5
4.5
020
TA = +125°C
TA = +25°C
TA = -40°C
VIN = 7.5V
OSCILLATOR FREQUENCY
vs. TEMPERATURE
TEMPERATURE (°C)
110
95
80
65
50
35
20
5
-10
-25
100
200
300
400
500
600
0
-40
125
RT = 2MΩ
RT = 180kΩ
RT = 50kΩ
EN UVLO THRESHOLD
vs. TEMPERATURE
TEMPERATURE (°C)
110
95
80
65
50
35
20
5
-10
-25
1.05
1.20
1.35
1.50
1.45
1.40
1.30
1.25
1.15
1.10
1.00
-40
125
VEN FALLING
OSCILLATOR FREQUENCY vs. RT
RT (MΩ)
1
0.1
100
200
300
400
500
600
0
0.01
10
VH_REG THRESHOLD
vs. TEMPERATURE
TEMPERATURE (°C)
110
95
80
65
50
35
20
5
-10
-25
3.6
3.9
4.2
4.1
4.0
3.8
3.7
3.5
3.4
-40
125
VH_REG vs. IH_REG
IH_REG (mA)
2.5
2.0
1.5
1.0
0.5
4.55
4.60
4.65
4.70
4.75
4.80
4.85
4.90
4.95
5.00
4.50
0
3.0
(VHV - VLV) = 6V
VIN = 12V
VH_REG IS MEASURED
WITH RESPECT TO VLV
VH_REG vs. TEMPERATURE
TEMPERATURE (°C)
110
95
80
65
50
35
20
5
-10
-25
4.3
4.6
4.9
5.2
5.1
5.0
4.8
4.7
4.5
4.4
4.2
-40
125
(VHV - VLV) = 21V
ILOAD = 3mA


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