lt3439efe-trpbf Linear Technology Corporation, lt3439efe-trpbf Datasheet - Page 3

• Manufacturer Part Number: lt3439efe-trpbf
• Description: Slew Rate Controlled Ultralow Noise 1a Isolated Dc/dc Transformer Driver
• Manufacturer: Linear Technology Corporation

TYPICAL PERFOR A CE CHARACTERISTICS
2.750
2.700
2.650
2.600
2.550
2.500
2.450
2.400
2.350
2.300
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0
–50
–50
0.1 0.2 0.3
Minimum Input Voltage
vs Temperature
Switch Voltage Drop
vs Switch Current
Current Limit vs Temperature
–25
–25
0
0
SWITCH CURRENT (A)
TEMPERATURE ( C)
TEMPERATURE ( C)
0.4 0.5 0.6
25
25
50
50
75
75
0.7 0.8 0.9
125 C
100
100 125
W
85 C
25 C
125 150
3439 G04
3439 G01
3439 G07
U
150
1.0
1.35
1.34
1.33
1.32
1.31
1.30
1.29
1.28
1.27
20
10
25
15
16
14
12
10
0
8
6
4
2
0
5
–50
–50
0
Supply Current in Shutdown Mode
vs Temperature
Supply Current vs Slew Resistor
SHDN Pin Voltage Threshold
vs Temperature
–25
–25
10000
0
0
17.5V
5V
2.7V
SLEW RESISTOR ( )
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
20000
50
50
75
75
30000
100
100
T
A
= 25 C
125 150
125 150
3439 G05
3439 G02
3439 G08
40000
120
115
110
105
100
1.3
1.0
1.6
1.5
1.4
1.2
1.1
10
24
22
18
16
14
20
12
95
90
85
80
–50
–50
–50
SYNC Pin Voltage Threshold
vs Temperature
Oscillator Frequency
vs Temperature
SHDN Pin Hysteresis Current
vs Temperature
R
C
T
T
–25
–25
= 680pF
–25
= 16.9k
0
0
0
TEMPERATURE ( C)
TEMPERATURE ( C)
TEMPERATURE ( C)
25
25
25
50
50
50
75
75
75
LT3439
100 125
100
100
sn3439 3439fs
125
125 150
3439 G03
3439 G06
3439 G09
3
150
150