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AS3689 Datasheet(PDF) 7 Page - ams-OSRAM AG

Part # AS3689
Description  Flexible Lighting Management
PDF  72 Pages
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Manufacturer  AMSOSRAM [ams-OSRAM AG]
Direct Link  https://ams-osram.com/
Logo AMSOSRAM - ams-OSRAM AG

AS3689 Datasheet(HTML) 7 Page - ams-OSRAM AG

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AS3689
austriami crosyst ems
Datasheet, Confidential
www.austriamicrosystems.com (mlg, ptr)
Revision 1.0.2 / 20070115
5 - 70
6
Typical Operating Characteristics
Figure
2 – DCDC Step Up Converter: Efficiency of +15V Step Up to 15V vs. Load Current at VBAT = 3.8V
65
70
75
80
85
90
0,0
20,0
40,0
60,0
80,0
Load Current [mA]
VOUT=14.2V
VOUT=17.2V
VOUT=22.3V
VOUT=14.2V
500kHz
Figure
3 – Charge Pump: Efficiency vs. VBAT (with one Flash LED PWF1)
0
20
40
60
80
100
120
2,8
3,0
3,2
3,4
3,6
3,8
4,0
4,2
Vbat [V]
ILED=80mA,
VLED=3.11V
ILED=40mA,
VLED=2.98V
ILED=147mA,
VLED=3.25V



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