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MAX16814BUTP+ Datasheet(PDF) 5 Page - Maxim Integrated Products

Part # MAX16814BUTP+
Description  Integrated, 4-Channel, High-Brightness LED Driver with High-Voltage DC-DC Controller
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Manufacturer  MAXIM [Maxim Integrated Products]
Direct Link  https://www.maximintegrated.com/en.html
Logo MAXIM - Maxim Integrated Products

MAX16814BUTP+ Datasheet(HTML) 5 Page - Maxim Integrated Products

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5
Maxim Integrated
Integrated, 4-Channel, High-Brightness LED
Driver with High-Voltage DC-DC Controller
MAX16814
Typical Operating Characteristics
(VIN = VEN = 12V, fSW = 300kHz, RSETI = 15kI, CVCC = 1FF, VCC = VDRV, NDRV = COMP = OUT_ = unconnected, VOVP = VCS =
VLEDGND = VDIM = VPGND = VSGND = 0V, load = 4 strings of 7 white LEDs, TA = +25NC, unless otherwise noted.)
SUPPLY CURRENT
vs. SWITCHING FREQUENCY
fSW (kHz)
1600
1400
1200
1000
800
600
400
3.2
3.4
3.6
3.8
4.0
4.2
4.4
3.0
200
1800 2000
CNDRV = 13pF
VSETI vs. PROGRAMMED CURRENT
LED STRING CURRENT (mA)
124
98
72
46
1.229
1.230
1.231
1.232
1.233
1.234
1.228
20
150
SWITCHING WAVEFORM AT 5kHz
(50% DUTY CYCLE) DIMMING
MAX16814 toc01
IOUT1
100mA/div
VOUT
10V/div
0V
0A
0V
VLX
10V/div
40Fs/div
FIGURE 2
SWITCHING FREQUENCY
vs. TEMPERATURE
TEMPERATURE (NC)
100
75
25
50
0
-25
292
294
296
298
300
302
304
306
308
310
290
-50
125
EN THRESHOLD VOLTAGE
vs. TEMPERATURE
TEMPERATURE (NC)
100
75
50
25
0
-25
1.15
1.20
1.25
1.30
1.10
-50
125
VEN RISING
VEN FALLING
SUPPLY CURRENT vs. SUPPLY VOLTAGE
VIN (V)
40
35
30
25
20
15
10
2.6
2.8
3.0
3.2
3.4
3.6
3.8
2.4
545
CNDRV = 13pF
TA = +125NC
TA = +25NC
TA = -40NC
VSETI vs. TEMPERATURE
TEMPERATURE (NC)
100
75
50
25
0
-25
1.224
1.228
1.232
1.236
1.240
1.220
-50
125
EN LEAKAGE CURRENT
vs. TEMPERATURE
TEMPERATURE (NC)
100
75
50
25
0
-25
30
60
90
120
150
0
-50
125
VEN = 2.5V


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