LYT2002-2005
Conditions
SOURCE = 0 V; TJ = 0 to 100 °C
(Unless Otherwise Specified)
Parameter
Symbol
Min
Typ
Max
Units
Control Functions (cont.)
Maximum Duty Cycle
DCMAX
See Notes D, E
55
%
V
TJ = 25 °C
1.915
1.90
1.940
1.965
1.98
FEEDBACK Pin Voltage
VFB(TH)
CBP = 1 mF
TJ = 100 °C
1.94
0.75
700
2.55
320
See Note E
FEEDBACK Pin Voltage at
Turn-Off Threshold
VFB(AR)
tON(MIN)
tFB
0.69
0.81
V
Minimum Switch
ON-Time
See Note E
ns
ms
mA
FEEDBACK Pin
Sampling Delay
TJ = 25 °C
2.35
2.75
370
FB Voltage > VFBth
(MOSFET Not Switching)
IS1
LYT2002
500
550
600
700
-4.8
-5.8
-6.3
-6.3
-3.2
-4.0
-4.4
-4.4
560
600
680
800
-2.5
-3.2
-3.2
-3.2
-1.4
-2.0
-2.0
-2.0
DRAIN Pin
Supply Current
FB Voltage = VFBth
-0.1 V,
Switch ON-Time =
tON (MOSFET
LYT2003
LYT2004
LYT2005
LYT2002
LYT2003
LYT2004
LYT2005
LYT2002
LYT2003
LYT2004
LYT2005
IS2
mA
Switching at fOSC
)
-7.0
-7.2
-8.5
-8.5
-5.6
-5.6
-6.0
-6.0
ICH1
VBP = 0 V
BYPASS Pin
Charge Current
mA
ICH2
VBP = 4 V
BYPASS Pin
Voltage
VBP
5.65
0.70
6.2
5.9
0.95
6.4
6.25
1.20
6.8
V
V
V
BYPASS Pin
Voltage Hysteresis
VBPH
BYPASS Pin
Shunt Voltage
VSHUNT
9
Rev. B 09/15
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