EL1848IY Intersil, EL1848IY Datasheet - Page 7

• Manufacturer Part Number: EL1848IY
• Description: IC LED DRIVR WHITE BCKLGT 8-MSOP
• Manufacturer: Intersil
• Type: Backlight, White LEDr

Specifications of EL1848IY

• Constant Current: Yes
• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 800kHz ~ 1.2MHz
• Voltage - Supply: 2.6 V ~ 13.2 V
• Voltage - Output: 14V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 90mA
• Internal Switch(s): Yes
• Efficiency: 91%
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Typical Performance Curves
All performance curves and waveforms are taken with C
series; unless otherwise specified.
4.7µF
0.1µF
V
FIGURE 11. PACKAGE POWER DISSIPATION vs AMBIENT
CTRL
V
IN
FIGURE 10A. 3 LEGS OF 3 LEDs IN A SERIES
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
1
0
0
JEDEC JESD51-7 HIGH EFFECTIVE
THERMAL CONDUCTIVITY TEST BOARD
8
2
1
TEMPERATURE
870mW
VIN
CNTL
COMP
15µH
AMBIENT TEMPERATURE (°C)
25
L
PGND
VOUT
SGND
CS
LX
50
4
3
7
5
6
7
BAT54HT1
θ
JA
MSOP8/10
75
=115°C/W
85
5Ω
100
(Continued)
5Ω
125
1
= 4.7µF, C
5Ω
1µF
FIGURE 10.
EL1848
2
= 1µF, C
3
FIGURE 12. PACKAGE POWER DISSIPATION vs AMBIENT
= 0.1µF, L = 33µF, V
95
90
85
80
75
70
0.6
0.5
0.4
0.3
0.2
0.1
15
3 LEGS OF 3 LEDs IN A SERIES
0
TEMPERATURE
L=SUMIDA CMD13D13-15µH
0
JEDEC JESD51-3 LOW EFFECTIVE
THERMAL CONDUCTIVITY TEST BOARD
FIGURE 10B. EFFICIENCY vs I
486mW
AMBIENT TEMPERATURE (°C)
IN
25
35
= 3.3V, V
50
I
O
CNTL
θ
JA
55
MSOP8/10
(mA)
V
V
=206°C/W
IN
IN
75
=2.7V
= 1V, R
=4.2V
85
75
100
1
= 5Ω, 3 LEDs in a
O
125
95