TOP252-262
Conditions
SOURCE = 0 V; TJ = -40 to 125 °C
Parameter
Symbol
Min
Typ
Max
Units
(Unless Otherwise Specified)
Circuit Protection (cont.)
TOP258YN/EN
di/dt = 890 mA/μs
TJ = 25 °C
3.999
3.236
4.790
3.906
5.580
4.808
6.882
4.808
6.882
4.30
3.48
5.15
4.20
6.00
5.17
7.40
5.17
7.40
4.601
3.724
5.511
4.494
6.420
5.532
7.918
5.532
7.918
TOP259LN
di/dt = 720 mA/μs
TJ = 25 °C
TOP259YN/EN
di/dt = 1065 mA/μs
TJ = 25 °C
TOP260LN
di/dt = 870 mA/μs
TJ = 25 °C
Self Protection
Current Limit
(See Note C)
TOP260YN/EN
di/dt = 1240 mA/μs
TJ = 25 °C
ILIMIT
A
TOP261LN
di/dt = 1065 mA/μs
TJ = 25 °C
TOP261YN/EN
di/dt = 1530 mA/μs
TJ = 25 °C
TOP262LN
di/dt = 1065 mA/μs
TJ = 25 °C
TOP262EN
di/dt = 1530 mA/μs
TJ = 25 °C
0.70 ×
ILIMIT(MIN)
Initial Current Limit
Power Coefficient
IINIT
See Note B
A
0.9 × I2f
0.9 × I2f
I2f
I2f
1.2 × I2f
1.2 × I2f
IX or IM ≤ - 165 μA
TJ = 25 °C,
See Note D
PCOEFF
A2kHz
IX or IM ≤ - 117 μA
Leading Edge
Blanking Time
tLEB
tIL(D)
TJ = 25 °C, See Figure 53
220
100
142
ns
ns
°C
Current Limit Delay
Thermal Shutdown
Temperature
135
150
Thermal Shutdown
Hysteresis
75
°C
V
Power-Up Reset
Threshold Voltage
VC(RESET)
Figure 54 (S1 Open Condition)
1.75
3.0
4.25
Output
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
TJ = 25 °C
TJ = 100 °C
19.1
28.8
8.8
22.00
33.40
10.10
15.20
6.25
9.70
4.70
7.30
3.20
4.75
2.30
3.60
1.95
2.90
TOP252
ID = 50 mA
TOP253
ID = 100 mA
13.1
5.4
TOP254
ID = 150 mA
8.35
4.1
ON-State
Resistance
TOP255
ID = 200 mA
RDS(ON)
Ω
6.3
2.8
TOP256
ID = 300 mA
4.1
2.0
TOP257
ID = 400 mA
3.1
1.7
TOP258
ID = 500 mA
2.5
36
Rev. F 01/09
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