MAX1986ETE+T Maxim Integrated Products, MAX1986ETE+T Datasheet - Page 4

• 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
(Circuit of Figure 1; V
+85°C, unless otherwise noted.) (Note 3)
Ultra-High-Efficiency White
LED Drivers
4
IN Supply Range
IN Undervoltage Lockout Threshold
IN Quiescent Current
REF Output Voltage
REF Line Regulation
REF Load Regulation
Oscillator Frequency
OUT Overvoltage Protection
Threshold
INTERNAL MOSFET SWITCHES
N-Channel MOSFET On-Resistance
P-Channel MOSFET On-Resistance
N-Channel MOSFET Current Limit
CONTROL INPUTS
BITA, BITB, BITC Input Logic Low
Level
BITA, BITB, BITC Input Logic High
Level
MODE Input Logic Low Level
MODE Input Logic High Level
SEL Input Logic Low Level
SEL Input Logic Midlevel
SEL Input Logic High Level
FULL-SCALE LED CURRENT ADJUSTMENT
LD1 to LD8 Output Current
_______________________________________________________________________________________
PARAMETER
IN
= 3.3V, SETI = BITA = BITB = BITC = SEL = IN, MODE = GND, C
50mV typical hysteresis
BITA = BITB = BITC = IN, LD1 to LD8 = GND
I
2.7V < V
-1µA < I
V
hysteresis
I
I
MAX1984
MAX1985
MAX1986
2.7V < V
2.7V < V
2.7V < V
2.7V < V
2.7V < V
2.7V < V
2.7V < V
V
V
BITC = IN
V
BITC = IN
V
BITC = IN
SETI = GND
REF
LX
LX
LD1
LD
LD
LD
LD_
= 200mA
= 200mA
_ = 80mV, SETI = BITA = BITB = BITC = IN
_ = 80mV, R
_ = 80mV, R
= 0
= 80mV, R
to V
REF
IN
IN
IN
IN
IN
IN
IN
IN
LD8
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< 5.5V
< +50µA
= 50mV, OUT rising, 100mV typical
SETI
SETI
SETI
CONDITIONS
= 278kΩ ±1%, BITA = BITB =
= 1.8MΩ ±1%, BITA = BITB =
= 697kΩ ±1%, BITA = BITB =
OUT
= 4.7µF, C
V
1.230
IN
MIN
0.50
0.40
0.30
0.50
2.05
11.5
15.5
0.42
2.7
2.2
0.8
5.1
1.6
16
22
- 0.4
REF
TYP
= 0.22µF, T
1.270
MAX
0.81
0.65
0.52
1.85
16.0
20.0
0.60
600
5.5
2.6
1.2
5.5
0.8
1.0
0.4
0.4
0.4
15
20
28
5
A
= -40°C to
UNITS
MHz
mV
mV
mA
µA
Ω
Ω
V
V
V
V
A
V
V
V
V
V
V
V