MAX17127ETP+ datasheet(6/22 Pages) MAXIM

Part #	MAX17127ETP+

Description	Six-String WLED Driver with Integrated Step-Up Converter

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Manufacturer	MAXIM [Maxim Integrated Products]

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6 ______________________________________________________________________________________

Six-String WLED Driver with Integrated

Step-Up Converter

Typical Operating Characteristics (continued)

(Circuit of Figure 1. VIN = 12V, TA = +25NC, unless otherwise noted.)

LED CURRENT vs. BRIGHTNESS SETTING

PWM DUTY CYCLE (%)

80

60

40

20

5

10

15

20

0

100

fPWM = 200Hz

LED CURRENT (ILED = 20mA AT 100% BRIGHTNESS)

vs. INPUT VOLTAGE (VS)

INPUT VOLTAGE (V)

23

20

17

14

11

8

20.05

20.10

20.15

20.20

20.00

5

26

LED CURRENT (ILED = 20mA AT 10% BRIGHTNESS)

vs. INPUT VOLTAGE (VS)

INPUT VOLTAGE (V)

23

20

17

14

11

8

1.98

2.00

2.02

2.04

1.96

5

26

IN QUIESCENT CURRENT

vs. IN VOLTAGE

IN VOLTAGE (V)

23

20

17

14

11

7

1

2

3

4

5

6

0

5

26

100% BRIGHTNESS

200Hz/1% BRIGHTNESS

IN SHUTDOWN CURRENT

vs. IN VOLTAGE

IN VOLTAGE (V)

23

20

17

14

11

8

2

4

6

8

10

0

5

26

EN = LOW

SWITCHING WAVEFORMS

(VS = 5V, BRIGHTNESS = 100%)

MAX17127 toc08

1µs/div

VLX

20V/div

0mA

500mA/div

INDUCTOR

CURRENT

0V

VOUT = 32V, IOUT = 120mA

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MAX17127ETP+ Datasheet(PDF) 6 Page - Maxim Integrated Products

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