LT3591EDDB#PBF Linear Technology, LT3591EDDB#PBF Datasheet - Page 12

• Manufacturer Part Number: LT3591EDDB#PBF
• Manufacturer: Linear Technology

Specifications of LT3591EDDB#PBF

• Operating Supply Voltage (typ): 3.3/5/9V
• Number Of Segments: 10
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Package Type: DFN EP
• Pin Count: 8
• Mounting: Surface Mount
• Operating Supply Voltage (min): 2.5V
• Operating Supply Voltage (max): 12V
• Lead Free Status / RoHS Status: Compliant

LT3591
TYPICAL APPLICATIONS
12
3V TO 5V
3V TO 5V
V
IN
V
IN
Li-Ion Driver for Four White LEDs at 50mA
AND DIMMING
C1:TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H225KA88
SHUTDOWN
C1
1 F
CONTROL
10 H
C1:TAIYO YUDEN EMK107BJ105MA
C2: MURATA GRM31CR71H475KA12L
L1: MURATA LQH32CN100K53
Li-Ion Driver for Ten White LEDs
C1
1 F
L1
DIMMING CONTROL
V
SW
SHUTDOWN AND
IN
22 H
V
CTRL
L1
IN
LT3591
CTRL
GND
LT3591
GND
SW
CAP
LED
CAP
LED
D1
L1: TAIYO YUDEN NR4018T220M
D1: PHILLIPS PMEG4005AEA
R
3.92
*OPTIONAL
SENSE
R
10
SENSE
C2
4.7 F
C2
2.2 F
65
60
85
80
75
70
65
60
55
80
75
70
0
0
V
10 LEDs
V
4 LEDs
IN
IN
= 3.6V
= 3.6V
NO SCHOTTKY
10
5
EXTERNAL SCHOTTKY
LED CURRENT (mA)
LED CURRENT (mA)
Effi ciency
Effi ciency
20
10
30
15
40
3491 TA02b
3591 TA03b
50
20
3591f