MAX1599ETA+T Maxim Integrated Products, MAX1599ETA+T Datasheet - Page 5

• Manufacturer Part Number: MAX1599ETA+T
• Description: IC LED DRIVR WHITE BCKLGT 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Backlight, White LEDr

Specifications of MAX1599ETA+T

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 400kHz ~ 600kHz
• Voltage - Supply: 2.6 V ~ 5.5 V
• Voltage - Output: 26V
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 700mA
• Internal Switch(s): Yes
• Efficiency: 87%
• Number Of Segments: 6
• Operating Supply Voltage: 2.6 V to 5.5 V
• Maximum Power Dissipation: 1950 mW
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

(Circuit of Figure 1, V
T
A
= +25°C, unless otherwise noted.)
SWITCHING WAVEFORMS
500ns/div
_______________________________________________________________________________________
IN
High-Efficiency, 26V Step-Up Converters
DIRECT-PWM DIMMING
= 3.6V, I
MAX1561 toc10
50µs/div
V
LED
IN
V
10mV/div
V
100mV/div
V
10V/div
IN
OUT
LX
= 3.8V Li+ BATTERY
= 15mA, L1 = 22µH, C
MAX1561 toc13
Typical Operating Characteristics (continued)
SOFT-START AND SHUTDOWN
V
32kHz
1V/div
0V
V
50mV/div
I
50mA/div
0mA
V
5V/div
0V
IN
CTRL
IN
OUT
20ms/div
for Two to Six White LEDs
IN
V
IN
= 2.2µF, C
= 3.8V Li+ BATTERY
MAX1561 toc11
OUT
LINE-TRANSIENT RESPONSE
V
1V/div
0V
V
50mV/div
I
50mA/div
0mA
V
5V/div
0V
IN
CTRL
IN
OUT
= 0.1µF, C
50µs/div
COMP
CTRL STEP RESPONSE
= 0.1µF, R
MAX1561 toc14
20ms/div
4V
V
500mV/div
3.5V
I
50mA/div
0mA
V
100mV/div
0V
V
IN
IN
CS
IN
SENSE
= 3.8V Li+ BATTERY
= 7.5Ω, 4 LEDs,
MAX1561 toc12
V
1V/div
0V
V
50mV/div
I
50mA/div
0mA
V
5V/div
0V
IN
CTRL
IN
OUT
5