MAX17127 Maxim Integrated Products, MAX17127 Datasheet - Page 6

• Manufacturer Part Number: MAX17127
• Description: Six-String WLED Driver
• Manufacturer: Maxim Integrated Products

(Circuit of Figure 1. V
Six-String WLED Driver with Integrated
Step-Up Converter
6
______________________________________________________________________________________
LED CURRENT (I
2.04
2.02
2.00
1.98
1.96
20
15
10
10
5
0
8
6
4
2
0
LED CURRENT vs. BRIGHTNESS SETTING
0
5
5
f
EN = LOW
PWM
IN
8
8
= 12V, T
= 200Hz
20
vs. INPUT VOLTAGE (V
IN SHUTDOWN CURRENT
11
PWM DUTY CYCLE (%)
LED
11
INPUT VOLTAGE (V)
vs. IN VOLTAGE
IN VOLTAGE (V)
= 20mA AT 10% BRIGHTNESS)
40
14
A
14
= +25NC, unless otherwise noted.)
17
17
60
20
20
S
80
)
23
23
Typical Operating Characteristics (continued)
100
26
26
LED CURRENT (I
20.20
20.15
20.10
20.05
20.00
6
5
4
3
2
1
0
5
5
V
OUT
(V
8
7
S
= 32V, I
SWITCHING WAVEFORMS
vs. INPUT VOLTAGE (V
IN QUIESCENT CURRENT
= 5V, BRIGHTNESS = 100%)
LED
11
11
200Hz/1% BRIGHTNESS
INPUT VOLTAGE (V)
OUT
vs. IN VOLTAGE
100% BRIGHTNESS
IN VOLTAGE (V)
= 20mA AT 100% BRIGHTNESS)
= 120mA
14
14
1µs/div
17
17
20
20
S
MAX17127 toc08
)
23
23
26
26
V
20V/div
0V
INDUCTOR
CURRENT
500mA/div
0mA
LX
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