LT3591EDDB#TRMPBF Linear Technology, LT3591EDDB#TRMPBF Datasheet - Page 3

• Manufacturer Part Number: LT3591EDDB#TRMPBF
• Description: IC LED DRIVER WHITE BCKLGT 8-DFN
• Manufacturer: Linear Technology
• Type: Backlight, White LEDr

Specifications of LT3591EDDB#TRMPBF

• Topology: PWM, Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight
• Type - Secondary: White LED
• Frequency: 750kHz ~ 1.2MHz
• Voltage - Supply: 2.5 V ~ 12 V
• Mounting Type: Surface Mount
• Package / Case: 8-DFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 300mA
• Internal Switch(s): Yes
• No. Of Outputs: 1
• Output Current: 300mA
• Output Voltage: 24V
• Input Voltage: 2.5V To 12V
• Dimming Control Type: PWM / DC
• Operating Temperature Range: -40°C To +85°C
• Driver Case Style: DFN
• Rohs Compliant: Yes
• Led Driver Application: Cell Phones, PDA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Output: -
• Efficiency: -
• Other names: LT3591EDDB#TRMPBFTR

TYPICAL PERFORMANCE CHARACTERISTICS
240
200
160
120
500
400
300
200
100
80
40
0
0
0
0
Switch Saturation Voltage
(V
Sense Voltage (V
vs V
CESAT
100 200
CTRL
500
– 50 C
25 C
125 C
)
SWITCH CURRENT (mA)
1000
200mA/DIV
300
50mV/DIV
V
20V/DIV
CTRL
125 C
– 50 C
1500
V
V
400
CAP
SW
CAP
I
(mV)
L
V
FRONT PAGE
APPLICATION CIRCUIT
Switching Waveform
500
IN
2000
– V
= 3.6V
25 C
600
LED
2500
)
700
3591 G04
3591 G01
3000
800
500ms/DIV
600
500
400
300
200
100
45
44
43
42
41
40
0
0
0
Schottky Forward Voltage Drop
Open-Circuit Output
Clamp Voltage
3591 G07
200
SCHOTTKY FORWARD DROP (mV)
3
400
– 50 C
125 C
25 C
V
IN
600
125 C
6
(V)
800
500mA/DIV
– 50 C
9
5V/DIV
5V/DIV
25 C
V
1000
V
CTRL
CAP
I
T
L
3591 G02
3591 G05
A
V
FRONT PAGE
APPLICATION CIRCUIT
Transient Response
= 25°C, unless otherwise specifi ed.
1200
IN
12
= 3.6V
15
12
9
6
3
0
8
7
6
5
4
3
2
1
0
0
1ms/DIV
0
Shutdown Current (V
Input Current in Output
Open Circuit
3
3
– 50 C
125 C
V
V
3591 G08
IN
IN
6
6
(V)
(V)
– 50 C
125 C
LT3591
CTRL
9
9
= 0V)
25 C
25 C
3591 G03
3591 G06
3
3591f
12
12