PIC8518 데이터 시트보기 (PDF) - Unspecified
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PIC8518 Datasheet PDF : 2 Pages
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PIC8518
High Efficiency, Fixed
Frequency WLED Driver
ELECTRICAL CHARACTERISTICS
(All specifications are at TA = +25°C. VIN = 5.0V, unless otherwise specified.)
Symbol
Parameter
Conditions
Min Typ
Max
Unit
VIN
Operating Input Voltage
2.5
5.5
V
UVLO
Under Voltage Lock-out
VIN going Low
2.2
2.4
V
UVLO Hysteresis
80
mV
Iq
Supply Current(quiescent) No Switching
(VIN=5V,VFB=150mV)
235
260
µA
ISH
Supply Current(shut-down) VEN = 0
0.4
1
µA
FOSC
Operation Frequency
1.04 1.2
1.4
MHz
DMAX
Maximum Duty Cycle
85
95
%
VFB
Feedback Voltage
94
104
114
mV
Feedback Input Bias Current VFB=125mV
600 1040
nA
RDS(ON)
MOSFET ON resistance
0.53
Ω
ILIM
Current Limit
850
mA
VOV
Over Voltage Threshold
VOV rising
30
V
VEN
Enable Threshold
VEN Rising
1
1.35
1.6
VEN Rising, VIN=2.5V 0.8
V
IEN
Enable Input Bias Current
VEN = 5V
6.5
µA
EN Hysteresis
4
mV
Thermal Shut-down
165
°C
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