TOP232-234
Conditions
(Unless Otherwise Specified)
See Figure 34
Parameter
Symbol
Min
Typ
Max
Units
SOURCE = 0 V; TJ = -40 to 125 °C
FREQUENCY INPUT
FREQUENCY Pin
Threshold Voltage
1.0
10
2.9
22
VC -1.0
40
V
VF
IF
See Note B
VF = VC
FREQUENCY Pin
Input Current
µA
CIRCUIT PROTECTION
TOP232
TJ= 25 °C
Internal; di/dt = 100mA/µs
See Note C
0.465
0.930
1.395
0.500
1.000
1.500
0.535
1.070
1.605
TOP233
TJ= 25 °C
Internal; di/dt = 200mA/µs
Self Protection
Current Limit
ILIMIT
A
A
See Note C
Internal; di/dt = 300mA/µs
See Note C
TOP234
TJ= 25 °C
≤ 85 VAC
0.75 x
ILIMIT(MIN)
(Rectified Line Input)
See Figure 33
IINIT
Initial Current Limit
TJ = 25 °C
265 VAC
(Rectified Line Input)
0.6 x
ILIMIT(MIN)
Leading Edge
Blanking Time
tLEB
tILD
IC = 4 mA
ns
ns
°C
200
100
135
Current Limit Delay
IC = 4 mA
Thermal Shutdown
Temperature
125
2.0
150
4.3
Thermal Shutdown
Hysteresis
70
°C
Power-up Reset
Threshold Voltage
3.3
VC(RESET)
V
Figure 34, S1 open
OUTPUT
TJ = 25 °C
TOP232
ID = 50 mA
15.6
25.7
7.8
18.0
30.0
9.0
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TOP233
ID = 100 mA
ON-State
Resistance
RDS(ON)
Ω
12.9
5.2
15.0
6.0
TOP234
ID = 150 mA
8.6
10.0
B
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