EL7513IWT-T7A Intersil, EL7513IWT-T7A Datasheet - Page 7
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EL7513IWT-T7A
Manufacturer Part Number
EL7513IWT-T7A
Description
IC LED DRIVR WHITE BCKLGT TSOT-8
Manufacturer
Intersil
Type
Backlight, White LEDr
Datasheet
1.EL7513IWTZ-T7A.pdf
(12 pages)
Specifications of EL7513IWT-T7A
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
18V
Mounting Type
Surface Mount
Package / Case
TSOT-23-8, TSOT-8
Operating Temperature
-40°C ~ 85°C
Current - Output / Channel
75mA
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
4.7µF
0.1µF
V
V
V
CTRL
CTRL
V
CTRL
V
4.7µF
0.1µF
V
IN
IN
IN
FIGURE 10A. 2 LEGS OF 4 LEDs IN A SERIES
FIGURE 11A. 3 LEGS OF 2 LEDs IN A SERIES
FIGURE 12A. 3 LEGS OF 3 LEDs IN A SERIES
8
2
1
8
2
1
VIN
CNTL
COMP
VIN
CNTL
COMP
8
2
1
15µH
15µH
VIN
CNTL
COMP
L
L
PGND
VOUT
SGND
PGND
VOUT
SGND
33µH
L
CS
LX
CS
LX
PGND
VOUT
SGND
CS
LX
4
3
7
5
6
4
3
7
5
6
7
BAT54HT1
BAT54HT1
4
3
7
5
6
BAT54HT1
5Ω
5Ω
(Continued)
5Ω
5Ω
5Ω
1
5Ω
= 4.7µF, C
5Ω
5Ω
1µF
1µF
1µF
FIGURE 10.
FIGURE 11.
FIGURE 12.
EL7513
2
= 1µF, C
3
= 0.1µF, L = 33µF, V
90
85
80
75
70
95
90
85
80
75
70
95
90
85
80
75
70
10
15
15
2 LEGS OF 4 LEDs IN A SERIES
3 LEGS OF 2 LEDs IN A SERIES
3 LEGS OF 3 LEDs IN A SERIES
FIGURE 10B. EFFICIENCY vs I
FIGURE 11B. EFFICIENCY vs I
FIGURE 12B. EFFICIENCY vs I
L=SUMIDA CMD13D13-15µH
L =SUMIDA CMD13D13-33µH
L = SUMIDA CMD13D13-15µH
IN
20
= 3.3V, V
35
35
30
I
I
I
O
O
O
CNTL
55
55
(mA)
(mA)
(mA)
V
V
IN
IN
=2.7V
=4.2V
40
= 1V, R
V
V
V
V
IN
IN
IN
IN
= 2.7V
= 4.2V
75
75
= 2.7V
= 4.2V
50
1
= 5Ω, 4 LEDs in a
O
O
O
December 22, 2008
60
95
95
FN7112.5