AP3019 Ver la hoja de datos (PDF) - BCD Semiconductor
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AP3019 Datasheet PDF : 15 Pages
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Preliminary Datasheet
WHITE LED STEP-UP CONVERTER
Electrical Characteristics
(VIN=3V, VCTRL =3V, TA=25oC, unless otherwise specified.)
AP3019
Parameter
Minimum Operating Voltage
Maximum Operating Voltage
Feedback Voltage
FB Pin Bias Current
Supply Current
Supply Current
Switching Frequency
Maximum Duty Cycle
Switch Current Limit (Note 2)
Switch VCE Saturation Voltage
Switch Leakage Current
CTRL Pin Voltage
Symbol
VIN(min)
Conditions
VIN(max)
VFB
IFB
ICC
IQ
f
DMAX
ILIMIT
VCESAT
VCTRL
IOUT=20mA, 4 LEDs,
TA=-40oC to 85oC
VFB=VIN, Not Switching
VCTRL=0V
TA=25oC, D=40%
TA=25oC, D=80%
ISW=250mA
VSW=5V
High
Low
CTRL Pin Bias Current
Schottky Forward Drop
Schottky Leakage Current
Soft Start Time
ICTRL
VDROP
t
TA=85oC
TA=-40oC
ID=150mA
VR=23V
VR=27V
Min Typ Max Unit
2.5
V
16
188
200
212
mV
35
100
nA
1.3
2.0
2.7
mA
2.0
3.2
5.0
µA
0.7
1.0
1.3 MHz
90
93
%
500
mA
350
360
mV
0.01
5
µA
1.8
V
0.05
40
55
72
50
µA
75
0.7
V
0.1
4
µA
150
300
µS
Note 2: The Switch Current Limit is related to Duty Cycle. Please refer to Figure 16 for detail.
Apr. 2007 Rev. 1. 1
BCD Semiconductor Manufacturing Limited
5
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