BL8519
ABSOLUTE MAXIMUM RATING
Supply Voltage
SW Pin Voltage
CE Pin Voltage
FB Pin Voltage
Operating Ambient Temperature Range
Storage Temperature Range
Lead Temperature (Soldering, 10 sec)
Thermal resistance: Θ
JA
23V
25V
–0.3V to Vin+0.3V
–0.3V to 6V
–40°C to 85°C
–65°C to 150°C
260°C
150°C/W
ELECTRICAL CHARACTERISTICS
(Test condition: Ta=25ºC, VIN=12V,unless otherwise noted.)
Symbol
Item
Conditions
Min.
VUVLO
VFB
IFB
IQ
△
VFB/
△
V
△VFB/△T
FOSC_MAX
FOSCTH
DMAX
ILIMIT
Rds_on
ISW
ICEH
ICEL
VCEH
VCEL
Under Voltage Lockout
Feedback Voltage
FB Pin Bias Current
Supply Current
Quiescent Current in
Shutdown
Reference Line
Regulation
Feedback Voltage
Temperature
Coefficient
Oscillator Frequency
Frequency Shift
Threshold on FB Pin
Max Duty Cycle
Switch Current Limit
Static P-Channel
MOSFET On State
Resistance
Switch Leakage
Current
CE “H” Input Current
CE “L” Input Current
CE “H” Input Voltage
CE “L” Input Voltage
1.225
VFB=1.25V
VFB=1.3V, VCE=VIN
VCE=0V
VIN=5V to 20V
-40℃
≤
Topt≤ 85℃
VFB=1.1V
FSW=200K
Typ.
3.35
1.25
150
2
2
0.08
±100
500
0.44
97
2.5
90*
Max.
3.6
1.275
600
5
Unit
V
V
nA
mA
uA
%/V
ppm/℃
KHz
V
%
A
mΩ
1
VCE =3V
VCE = 0V
VIN = 12V
VIN = 12V
1.8
0.4
6.7
0.03
15
0.1
uA
uA
uA
V
V
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