MAX8631XETI+T Maxim Integrated Products, MAX8631XETI+T Datasheet - Page 6

• Manufacturer Part Number: MAX8631XETI+T
• Description: IC LED DRVR WHITE BCKLGT 28-TQFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LED (Serial Interface)r

Specifications of MAX8631XETI+T

• Constant Current: Yes
• Topology: Linear (LDO), Switched Capacitor (Charge Pump)
• Number Of Outputs: 8
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 1MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5V
• Mounting Type: Surface Mount
• Package / Case: 28-TQFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 200mA
• Internal Switch(s): Yes
• Efficiency: 85%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1x/1.5x/2x White LED Charge Pump with Two
LDOs in 4mm x 4mm Thin QFN
(V
6
IN
_______________________________________________________________________________________
= V
EN_
= 3.6V, Circuit of Figure 1, T
V
ENM_
V
V
1000
I
OUT
OUT
100
OUT
V
10
I
IN
IN
1
1
OPERATING WAVEFORMS (1.5x MODE)
INDIVIDUAL FLASH LED CURRENT
STARTUP AND SHUTDOWN
4 MAIN LEDS AT 20mA EACH
4 MAIN LEDS AT 20mA EACH
MAIN LED RESPONSE
vs. R
R
400ns/div
SETF
1ms/div
10
SETF
(kΩ)
A
= +25°C, unless otherwise noted.)
MAX8631X toc17
MAX8631X toc15
Typical Operating Characteristics (continued)
100
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
2mA/div
AC-COUPLED
5V/div
0V
100mA/div
0A
5V/div
0V
V
V
V
V
I
OUT
OUT
OUT
OUT
ENF
V
V
I
I
I
IN
IN
IN
IN
IN
OPERATING WAVEFORMS (1x MODE)
OPERATING WAVEFORMS (2x MODE)
STARTUP AND SHUTDOWN
4 MAIN LEDS AT 20mA EACH,
4 MAIN LEDS AT 20mA EACH
FLASH LED RESPONSE
4 MAIN LEDS AT 20mA EACH,
FLASH AT 400mA TOTAL
400mA TOTAL FLASH
400ns/div
400ns/div
1ms/div
MAX8631X toc14
MAX8631X toc16
MAX8631X toc18
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
2mA/div
AC-COUPLED
50mV/div
AC-COUPLED
20mV/div
AC-COUPLED
2mA/div
AC-COUPLED
5V/div
0V
500mA/div
0A
500mA/div
0A
5V/div
0V