el7513 Intersil Corporation, el7513 Datasheet - Page 4
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el7513
Manufacturer Part Number
el7513
Description
White Led Step-up Regulator
Manufacturer
Intersil Corporation
Datasheet
1.EL7513.pdf
(12 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
el7513IWT-T7
Manufacturer:
INTERS
Quantity:
39 000
Part Number:
el7513IWT-T7
Manufacturer:
INTERSIL
Quantity:
20 000
Block Diagram
Typical Performance Curves
All performance curves and waveforms are taken with C
series; unless otherwise specified.
1.05
1.04
1.03
1.02
1.01
FIGURE 1. SWITCHING FREQUENCY vs V
1
2.5
SIGNAL
3
PWM
2.6V TO
C
V
5.5V
3.5
COMP
4.7µF
0.1µF
CNTL
C
IN
4
V
IN
COMP
4
CNTL
(V)
4.5
GENERATOR
REFERENCE
617K
50K
5
IN
1
= 4.7µF, C
5.5
OSCILLATOR
ERROR AMP
START-UP
CONTROL
V
I-SENSE
BOOST
1MHz
IN
+
+
+
EL7513
2
+
= 1µF, C
-
OVER-VOLTAGE
PROTECTION
3
SHUTDOWN
= 0.1µF, L = 33µF, V
THERMAL
LOGIC
PWM
3.5
2.5
1.5
0.5
3
2
1
0
2.5
FIGURE 2. QUIESCENT CURRENT
V
WHITE LEDs DISCONNECTED
CNTL
V
LX
PGND
C
SGND
4.5
OUT
S
=0V, 0.1V
IN
I(LED)
= 3.3V, V
L
33µH
6.5
V
CNTL
IN
8.5
5Ω
(V)
= 1V, R
10.5
C
1µF
OUT
1
= 5Ω, 4 LEDs in a
12.5
14.5