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