LTC3454EDD#TRPBF Linear Technology, LTC3454EDD#TRPBF Datasheet - Page 4

• Manufacturer Part Number: LTC3454EDD#TRPBF
• Description: IC LED DRIVER PHOTO FLASH 10-DFN
• Manufacturer: Linear Technology
• Type: Photo Flash LEDr

Specifications of LTC3454EDD#TRPBF

• Topology: PWM, Step-Down (Buck), Step-Up (Boost)
• Number Of Outputs: 1
• Internal Driver: Yes
• Type - Primary: Backlight, Flash/Torch
• Type - Secondary: White LED
• Frequency: 900MHz ~ 1.15MHz
• Voltage - Supply: 2.7 V ~ 5.5 V
• Voltage - Output: 5.15V
• Mounting Type: Surface Mount
• Package / Case: 10-DFN
• Operating Temperature: -40°C ~ 85°C
• Current - Output / Channel: 1A
• Internal Switch(s): Yes
• Efficiency: 90%
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC3454
TYPICAL PERFORMANCE CHARACTERISTICS
4
3950
3900
3800
3650
4050
4000
3850
3750
3700
5.20
5.15
5.05
4.90
5.40
5.35
5.30
5.25
5.10
5.00
4.95
60
58
56
54
52
50
48
46
44
42
40
–55
100
2.7
V
Maximum Regulated V
vs Programmed LED Current
LED Current Programming Ratio
vs Temperature
V
V
T
PROGRAMMED I
T
LED
A
IN
IN
A
–35
200
= 25°C
= 25°C
= 3.6V
= 3.6V
3.1
vs V
–15
300
PROGRAMMED I
3.5
IN
TEMPERATURE (°C)
400
5
PROGRAMMED I
PROGRAMMED I
PROGRAMMED I
LED
3.9
500
25
V
IN
= 500mA
(V)
600
45
4.3
LED
700
65
OUT
(mA)
4.7
LED
LED
LED
800
85
= 1A
= 500mA
= 150mA
5.1
105
900
3454 G07
3454 G13
3454 G10
1000
125
5.5
3900
3800
3650
4050
4000
3950
3850
3750
3700
5.15
5.05
4.90
5.40
5.35
5.30
5.25
5.20
5.10
5.00
4.95
300
270
240
210
180
150
120
90
–55
–55
2.7
LED Current Programming Ratio
vs V
Maximum Regulated V
vs Temperature
PMOS R
PROGRAMMED I
T
PROGRAMMED I
V
MEASURED AT 500mA
A
IN
–35
–35 –15
= 25°C
= 3.6V
3.1
IN
–15
V
DS(ON)
3.5
IN
TEMPERATURE (°C)
TEMPERATURE (°C)
5
5
= 3.6V
LED
LED
3.9
25
25
V
vs Temperature
IN
= 500mA
= 1A
V
(V)
IN
45
45
4.3
V
IN
= 4.2V
= 2.7V
65
65
OUT
4.7
V
IN
85
85 105
= 5.5V
5.1
105
3454 G14
3454 G08
3454 G11
125
125
5.5
5.30
5.25
5.20
5.15
5.10
5.05
5.00
4.95
4.90
5.40
5.35
200
160
140
120
100
180
150
120
40
80
60
60
90
30
0
–55
–55
2.7
V
Maximum Regulated V
vs V
NMOS R
PROGRAMMED I
T
V
MEASURED AT 500mA
LED
A
IN
–35 –15
–35 –15
= 25°C
= 3.6V
3.1
IN
PROGRAMMED
vs Temperature
V
IN
I
LED
3.5
DS(ON)
= 3.6V
PROGRAMMED
TEMPERATURE (°C)
TEMPERATURE (°C)
I
PROGRAMMED
LED
= 1A
I
5
5
LED
LED
= 500mA
3.9
= 100mA
25
25
V
vs Temperature
IN
= 1A
V
(V)
V
IN
45
45
4.3
IN
= 2.7V
= 4.2V
65
65
OUT
4.7
V
85 105
85 105
IN
= 5.5V
5.1
3454 G15
3454 G12
3454 G09
3454fa
125
125
5.5