lt3591 Linear Technology Corporation, lt3591 Datasheet - Page 14

• Manufacturer Part Number: lt3591
• Description: White Led Driver With Integrated Schottky In 3mm X 2mm Dfn
• Manufacturer: Linear Technology Corporation

LT3591
TYPICAL APPLICATIONS
14
3V TO 5V
3V TO 5V
V
V
IN
IN
Li-Ion Driver for Seven White LEDs
Li-Ion Driver for Eight White LEDs
22 H
C1: TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H225KA88
L1: TAIYO YUDEN NR4018T220M
22 H
C1
1 F
C1
1 F
C1: TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H225KA88
L1: TAIYO YUDEN NR4018T220M
L1
L1
DIMMING CONTROL
DIMMING CONTROL
V
SW
V
SW
SHUTDOWN AND
SHUTDOWN AND
IN
IN
LT3591
LT3591
CTRL
CTRL
GND
GND
CAP
LED
CAP
LED
R
10
R
10
SENSE
SENSE
3591 TA08a
3591 TA07a
C2
2.2 F
C2
2.2 F
85
80
75
70
65
60
55
50
85
80
75
70
65
60
55
0
0
V
7 LEDs
V
8 LEDs
IN
IN
= 3.6V
= 3.6V
Conversion Effi ciency
Conversion Effi ciency
5
5
LED CURRENT (mA)
LED CURRENT (mA)
10
10
15
15
3591 TA07b
3591 TA08b
20
20
3591f