TOP252-262
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
Multi-Function (M), Voltage Monitor (V) and External Current Limit (X) Inputs
Output Overvoltage
Latching Shutdown
Threshold Current
IOV(LS)
TJ = 25 °C
269
336
403
μA
V
VM(TH)
V(TH) or
V or M Pin Reset Voltage
TJ = 25 °C
0.8
-35
1.0
-27
5
1.6
-20
V
Remote ON/OFF
Negative Threshold
Current and Hysteresis
(M or X Pin)
Threshold
Hysteresis
IREM (N)
TJ = 25 °C
μA
I
V(SC) or
IM(SC)
V or M Pin Short Circuit
Current
TJ = 25 °C
VV, VM = VC
300
400
500
μA
μA
Normal Mode
Auto-Restart Mode
IV or IM = IUV
-260
-95
-200
-75
2.8
-140
-55
I
X(SC) or
IM(SC)
X or M Pin Short Circuit
Current
VX, VM = 0 V
2.10
2.79
2.83
3.20
3.21
3.25
V or M Pin Voltage
(Positive Current)
VV orVM
TOP252-TOP257
TOP258-TOP262
3.0
V
IV or IM = IOV
3.0
V or M Pin Voltage
Hysteresis (Positive
Current)
VV(hyst) or
VM(hyst)
IV or IM = IOV
0.2
0.5
V
V
1.23
1.15
1.30
1.22
1.37
1.29
IX or IM = -50 μA
X or M Pin Voltage
(Negative Current)
VX or VM
IX or IM = -150 μA
Maximum Duty Cycle
Reduction Onset
Threshold Current
IV(DC) or
IM(DC)
IC ≥ IB, TJ = 25 °C
18.9
22.0
24.2
μA
I
V(DC) < IV <48 μA or
-1.0
I
M(DC) < IM <48 μA
Maximum Duty Cycle
Reduction Slope
TJ = 25 °C
%/μA
-0.25
IV or IM ≥48 μA
X, V or M Pin
Floating
0.6
1.0
1.0
1.6
Remote OFF DRAIN
Supply Current
ID(RMT)
VDRAIN = 150 V
mA
V or M Pin Shorted to
CONTROL
From Remote ON to Drain
Turn-On
66 kHz
132 kHz
66 kHz
3.0
1.5
3.0
1.5
Remote ON Delay
tR(ON)
μs
μs
See Note B
Minimum Time Before Drain
Turn-On to Disable Cycle
See Note B
Remote OFF Setup Time
Frequency Input
tR(OFF)
132 kHz
FREQUENCY Pin
Threshold Voltage
VF
IF
See Note B
TJ = 25 °C
2.9
55
V
FREQUENCY Pin Input
Current
VF = VC
10
90
μA
34
Rev. F 01/09
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