IS31LT3948-GRLS2-TR ISSI, IS31LT3948-GRLS2-TR Datasheet - Page 4

• Manufacturer Part Number: IS31LT3948-GRLS2-TR
• Description: LED Lighting Drivers PFM Mode Boost LED Drvr
• Manufacturer: ISSI

Specifications of IS31LT3948-GRLS2-TR

• Input Voltage: 5 V to 100 V
• Maximum Supply Current: 400 uA
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: SOP-8
• Factory Pack Quantity: 2500

IS31LT3948
Typical Performance Characteristics
Integrated Silicon Solution, Inc. – www.issi.com
Rev.B, 12/24/2012
400
380
360
340
320
300
400
380
360
340
320
300
800
770
740
710
680
650
10
30
20
Vout=40V,Rfb=0.825
L=100uH,Cout=220uF(Low ESR)
Vout=48V,Rfb=0.392,Rcs=0.1
Vout=48V,Rfb=0.392,Rcs=0.1

L=100uH,Cout=220uF(Low
Vin=12V,Rfb=0.825,Rcs=0.12
L=100uH,Cout=220uF(Low
L=100uH,Cout=220uF(Low
12
34
24
14
Figure 2. Vin & Iout
Figure 4. Vout & Iout
,
Rcs=0.12
Figure 6. Vin & Iout
16
38
28
ESR)
ESR)
ESR)
Vin(V)
Vout(V
Vin(V)
18
)
42
32
20
22
46
36
24
26
50
40
100
100
100
90
80
70
60
50
90
80
70
60
50
90
80
70
60
50
10
20
30
Vin=12V,Rfb=0.825
L=100uH,Cout=220uF(Low ESR)
Vout=40V,Rfb=0.825
L=100uH,Cout=220uF(Low ESR)
Vout=48V,Rfb=0.392,Rcs=0.1
Vout=48V,Rfb=0.392,Rcs=0.1

L=100uH,Cout=220uF(Low
L=100uH,Cout=220uF(Low
12
34
24
14
Figure 5. Vout & Efficiency
Figure 7. Vin & Efficiency
,
Rcs=0.12
Figure 3. Vin & Efficiency
,
Rcs=0.12
16
38
28
ESR)
ESR)
Vout(V)
Vin(V)
18
Vin(V)
42
32
20
22
46
36
24
4
26
50
40