IS32LT3170/71
Integrated Silicon Solution, Inc. – www.issi.com 7
Rev. B, 12/21/2016
TYPICAL PERFORMANCE CHARACTERISTICS
IS32LT3170
Output Voltage (V)
Output Current (mA)
0
5
10
15
20
25
30
0.5 2 3.5 5 6.5 8 9.5 11 12.5 14
V
EN
= 42V
R
EXT
Open
T
A
= -40°C
T
A
= 85°C
T
A
= 125°C
T
A
= 25°C
Figure 2
I
OUT
vs. V
OUT
Output Voltage (V)
Output Current (mA)
0.5 2 3.5 5 6.5 8 9.5 11 12.5 14
0
50
100
150
V
EN
= 42V
R
EXT
= 10
T
A
= 125°C
T
A
= 85°C
T
A
= 25°C
T
A
= -40°C
Figure 4
I
OUT
vs. V
OUT
Output Voltage (V)
Output Current (mA)
0
20
40
60
80
100
120
140
160
180
200
02468101214
V
EN
= 5V
f
PWM
= 100Hz@1% Duty Cycle
T
A
= 25°C
R
EXT
= 7.5
R
EXT
= 10
R
EXT
= 20
R
EXT
Open
Figure 6
I
OUT
vs. V
OUT
Output Voltage (V)
Output Current (mA)
0.5 2 3.5 5 6.5 8 9.5 11 12.5 14
0
20
40
60
80
V
EN
= 42V
R
EXT
= 20
T
A
= 125°C
T
A
= 85°C
T
A
= 25°C
T
A
= -40°C
Figure 3
I
OUT
vs. V
OUT
Output Voltage (V)
Output Current (mA)
0.5 2 3.5 5 6.5 8 9.5 11 12.5 14
0
20
40
60
80
100
120
140
160
180
V
EN
= 42V
R
EXT
= 7.5
T
A
= 125°C
T
A
= 85°C
T
A
= 25°C
T
A
= -40°C
Figure 5
I
OUT
vs. V
OUT
Output Voltage (V)
Output Current (mA)
0
20
40
60
80
100
120
140
160
180
200
02468101214
V
EN
= 42V
T
A
= 25°C
R
EXT
Open
R
EXT
= 20
R
EXT
= 10
R
EXT
= 7.5
Figure 7
I
OUT
vs. V
OUT
IS32LT3170/71
Integrated Silicon Solution, Inc. – www.issi.com 8
Rev. B, 12/21/2016
V
EN
(V)
Output Current (mA)
0
4
8
12
16
20
5 152535
42
V
OUT
= 2V
R
EXT
Open
T
A
= -40°C
T
A
= 125°C
T
A
= 85°C
T
A
= 25°C
Figure 8
I
OUT
vs. V
EN
V
EN
(V)
Output Current (mA)
5 15253542
0
30
60
90
120
150
V
OUT
= 2V
R
EXT
= 10
T
A
= 125°C
T
A
= -40°C
T
A
= 25°C
T
A
= 85°C
Figure 10
I
OUT
vs. V
EN
V
EN
(V)
Output Current (mA)
42
0
20
40
60
80
100
120
140
160
180
0 5 10 15 20 25 30 35 40
V
OUT
= 2V
T
A
= 25°C
R
EXT
= 7.5
R
EXT
= 10
R
EXT
= 20
R
EXT
Open
Figure 12
I
OUT
vs. V
EN
V
EN
(V)
Output Current (mA)
515253542
T
A
= 125°C
0
20
40
60
80
V
OUT
= 2V
R
EXT
= 20
T
A
= -40°C
T
A
= 25°C
T
A
= 85°C
Figure 9
I
OUT
vs. V
EN
V
EN
(V)
Output Current (mA)
5 15253542
0
25
50
75
100
125
150
175
200
V
OUT
= 2V
R
EXT
= 7.5
T
A
= 125°C
T
A
= -40°C
T
A
= 25°C
T
A
= 85°C
Figure 11
I
OUT
vs. V
EN
V
EN
(V)
Supply Current (µA)
42
0 5 10 15 20 25 30 35 40
0
100
200
300
400
500
I
OUT
= 0A
R
EXT
Open
T
A
= 125°C
T
A
= 85°C
T
A
= 25°C
T
A
= -40°C
Figure 13
I
EN
vs. V
EN
IS32LT3170/71
Integrated Silicon Solution, Inc. – www.issi.com 9
Rev. B, 12/21/2016
R
EXT
()
Output Current (mA)
0
50
100
150
200
250
110100
V
EN
= 42V
V
OUT
= 2V
Figure 14 I
OUT
vs. R
EXT

IS32LT3171-STLA3-TR

Mfr. #:
Manufacturer:
Description:
IC LED DRVR LINEAR 150MA SOT23-6
Lifecycle:
New from this manufacturer.
Delivery:
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