SIP12506 データシートの表示（PDF） - Vishay Semiconductors
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SIP12506 Datasheet PDF : 13 Pages
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Product is End of Life 3/2014
SiP12506
Vishay Siliconix
TYPICAL WAVEFORMS
95
90
85
80
75
70
65
VIN = 3.2 V
60
VIN = 3.6 V
55 VIN = 4.2 V
50
2
5
8
11
14
17
20
LED current (mA)
Efficiency vs. LED Current - Driving 3 Series LEDs
95
90
VIN = 3.2 V
85
80
75
70
VIN = 3.6 V
65
VIN = 4.2 V
60
55
50
2
5
8
11
14
17
20
LED current (mA)
Efficiency vs. LED Current - Driving 4 Series LEDs
VIN, 20 mV/div (AC Coupled)
Inductor Current, 100 mA/div
VEN, 5 V/div
Inductor Current, 500 mA/div
VLX, 10 V/div
VOUT, 20 mV/div (AC Coupled)
VLX, 10 V/div
400 nS/div
Steady State Condition
VIN = 3.6 V, 4 series LEDs, ILOAD = 20 mA
VOUT, 5 V/div (AC Coupled)
100 µS/div
Start-Up
VIN = 3.6 V, 4 series LEDs, ILOAD = 20 mA
VEN, 5 V/div
Inductor Current, 500 mA/div
VLX, 20 V/div
VOUT, 5 V/div (AC Coupled)
200 µS/div
Start-Up under Open-Load Condition
VIN = 3.6 V, open load
Document Number: 73861
S-70547–Rev. D, 26-Mar-07
www.vishay.com
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