LT3498EDDB#TRPBF Linear Technology, LT3498EDDB#TRPBF Datasheet - Page 18

• Manufacturer Part Number: LT3498EDDB#TRPBF
• Description: IC LED DRVR WT/OLED BCKLGT 12DFN
• Manufacturer: Linear Technology
• Type: Backlight, OLED, White LEDr

Specifications of LT3498EDDB#TRPBF

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: OLED, White LED
• Frequency: 1.8MHz ~ 2.8MHz
• Voltage - Supply: 2.5 V ~ 12 V
• Voltage - Output: 32V
• Mounting Type: Surface Mount
• Package / Case: 12-DFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 20mA
• Internal Switch(s): Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Efficiency: -

LT3498
TYPICAL APPLICATIONS
18
C
C1: TAIYO YUDEN GMK212BJ105KG
C3: TAIYO YUDEN TMK316BJ106ML
L1, L2: MURATA LQH32CN100K53
IN
, C2: X5R OR X7R WITH SUFFICIENT VOLTAGE RATING
20mA
R
10Ω
SENSE1
Li-Ion to Two White LEDs and OLED/LCD Bias
C1
1μF
75
50
45
40
70
65
60
55
CAP1
LED1
0
SHUTDOWN
V
SW1
DIMMING
CONTROL
IN
OFF
CTRL1
AND
= 3V TO 5V
V
10μH
5
ON
IN
L1
LED Effi ciency
LED CURRENT (mA)
= 3.6V, 2 LEDs
GND1
V
IN
10
LT3498
10μH
GND2
L2
C
4.7μF
IN
SW2
SHUTDOWN
CONTROL
OFF
15
CTRL2
AND
ON
3498 TA02b
CAP2
20
V
FB2
OUT2
C2
0.47μF
3498 TA02
R
2.21MΩ
FB2
C3
10μF
16V
24mA
3498fa