MAX17149ETE+ Maxim Integrated Products, MAX17149ETE+ Datasheet - Page 3

• Manufacturer Part Number: MAX17149ETE+
• Description: LED Drivers 6-String WLED Driver
• Manufacturer: Maxim Integrated Products

Specifications of MAX17149ETE+

• Operating Supply Voltage: 3 V to 26 V
• Maximum Supply Current: 4 mA
• Maximum Power Dissipation: 1176 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: TQFN-16
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1. V
FSEL Bias Current
LED CURRENT SOURCE
ISET Resistance Range
Full-Scale FB_ Output Current
ISET Output Voltage
Current Regulation Between
Strings
Minimum FB_ Regulation Voltage
FB_ On-Resistance
FB_ Leakage Current
FB_ On-Time
BRT Input High Level
BRT Input Low Level
BRT Dimming Frequency
EN Input High Level
EN Input Low Level
FAULT PROTECTION
OVP Overvoltage
OVP Open String
FB_ Check LED Source Current
FB_ Check LED Time
FB_ Open LED Threshold
FB_ Overvoltage Threshold
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
BOOST FREQUENCY SELECTION FSEL
FSEL Input High Level
FSEL Input Low Level
PARAMETER
IN
= 12V, R
Low-Cost, 6-String WLED Drivers with
ISET
0.3V < V
4.1V < V
R
R
R
R
R
I
I
I
I
I
I
I
I
V
V
V
Rising edge, hysteresis = 1.8V
MAX17129 only, V
MAX17149 only
Sequence for 6 channels
(Note 2)
(Note 2)
Select f
Select f
= 100kI, T
FB_
FB_
FB_
FB_
FB_
FB_
FB_
FB_
FB_
FB_
FB_
ISET
ISET
ISET
ISET
ISET
= 30mA
= 20mA
= 15mA
= 10mA
= 30mA, BRT duty cycle = 100%
= 20mA, BRT duty cycle = 100%
= 15mA, BRT duty cycle = 100%
= 10mA, BRT duty cycle = 100%
= 50mV
= 28V, T
= 40V, T
= 44.44kI
= 66.66kI
= 100kI
= 133.33kI
= 200kI
SW
SW
FSEL
FSEL
= 500kHz
= 1000kHz
A
Quick-PWM Step-Up Converter
= 0°C to +85°C, unless otherwise noted. Typical values are at T
< 3.5V, T
< 28V, T
A
A
= +25NC, EN = 0V, V
= +25NC, EN = 0V, V
OVP
CONDITIONS
A
A
rising
= +25NC
= +25NC
VO
VO
= 28V
= 40V
14.55
1.225
-2.75
43.3
29.1
19.4
9.65
43.7
21.5
0.60
MIN
-1.5
-2.0
-2.0
300
2.1
0.1
2.1
6.7
2.1
44
39
1.250
0.665
+160
TYP
0.05
45.2
41.5
23.5
375
275
200
125
500
2.5
8.0
45
30
20
15
10
15
1
A
= +25NC.) (Note 1)
+2.75
15.45
10.35
1.275
MAX
2000
+1.5
+2.0
+2.0
47.7
30.9
20.6
46.7
25.5
0.73
200
550
350
275
200
700
0.8
0.8
9.6
0.8
20
25
44
6
1
5
UNITS
kHz
mA
mA
mV
mV
FA
kI
FA
ms
NC
NC
ns
%
I
V
V
V
V
V
V
V
V
V
V
3