MAX1986ETE+T Maxim Integrated Products, MAX1986ETE+T Datasheet - Page 3

• Manufacturer Part Number: MAX1986ETE+T
• Description: IC LED DRVR WHITE BCKLGT 16-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1986ETE+T

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 4
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.2MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Mounting Type: Surface Mount
• Package / Case: 16-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 25mA
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Lead Free Status / Rohs Status: Details

ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1; V
unless otherwise noted. Typical values are at T
SEL Input Logic Low Level
SEL Input Logic Midlevel
SEL Input Logic High Level
SEL Input Bias Current
FULL-SCALE LED CURRENT ADJUSTMENT
LD1 to LD8 Output Current
LD1 to LD8 Regulation Voltage
SETI High-Level Threshold
(18mA LED Default Current)
SETI Low-Level Threshold
(0.5mA LED Default Current)
SETI Output Current
OUTPUT CURRENT SOURCE
LD1 to LD8 On-Resistance
LD1 to LD8 Current-Source
Compliance
LD1 to LD8 Leakage Current
DIGITAL BRIGHTNESS CONTROL
2-Bit Control DAC LSB
3-Bit Control DAC LSB
DPWM BRIGHTNESS CONTROL
DPWM Input Supply Range
DPWM Shutdown Duty Cycle
PARAMETER
IN
_______________________________________________________________________________________
= 3.3V, SETI = BITA = BITB = BITC = SEL = IN, MODE = GND, C
2.7V < V
2.7V < V
2.7V < V
SEL = GND, current out of the pin
SEL = IN, current into the pin
V
V
BITC = IN
V
BITC = IN
V
BITC = IN
V
SETI = GND
SETI = IN, I
110mA (MAX1985), 98mA (MAX1986)
2.7V < V
2.7V < V
SETI = GND
V
BITA = BITB = BITC = IN, 80mV < V
(Note 1)
BITA = BITB = BITC = GND
MODE = SETI = BITB = IN, BITA = BITC = GND
(Note 2)
SETI = BITC = IN, MODE = BITA = BITB = GND
(Note 2)
MODE = BITC = IN
BITC = GND
LD_
LD
LD
LD_
L D 1
LD_
_ = 80mV, R
_ = 80mV, R
A
= 80mV, SETI = BITA = BITB = BITC = IN
= 80mV, R
= 1V , R
= 50mV, V
= +25°C.)
IN
IN
IN
IN
IN
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
LX
S E T I
= 120mA (MAX1984),
OUT
SETI
SETI
SETI
= 10kΩ , BITA = BITB = BITC = IN
Ultra-High-Efficiency White
CONDITIONS
= 3.5V
= 597kΩ ±0.1%, BITA = BITB =
= 278kΩ ±0.1%, BITA = BITB =
= 1.8MΩ ±0.1%, BITA = BITB =
LD_
< 1V
OUT
= 4.7µF, C
V
IN
0.50
2.05
16.5
22.5
12.5
16.5
0.42
MIN
2.3
80
50
40
26
7
3
- 0.4
LED Drivers
REF
= 0.22µF, T
TYP
0.50
0.01
100
0.3
18
25
14
18
26
70
33
14
3
5
A
MAX
1.85
19.5
27.5
15.5
19.5
0.60
120
125
100
0.4
5.5
10
39
21
= 0°C to +85°C,
5
4
5
1
7
UNITS
mA
mV
mV
µA
µA
µA
%
%
%
%
Ω
V
V
V
V
V
3