Datasheet

Smart Low-Side Power Switch
BTS3405G
Protection FunctionsCharacteristics
Data Sheet 18 Rev. 1.1, 2011-09-01
6.4 Characteristics
Note: Characteristics show the deviation of parameter at given input voltage and junction temperature. Typical
values show the typical parameters expected from manufacturing.
Electrical Characteristics: Protection Functions
T
j
= -40 ⋅C to +150 ⋅C; all voltages with respect to ground, positive current flowing into pin
(unless otherwise specified), all values valid for both channels
Pos. Parameter Symbol Limit Values Unit Test Conditions
Min. Typ. Max.
Thermal Protection
6.4.1 Thermal shut down junction temperature
T
JSD
150 175
1)
1) Not subject to production test, specified by design.
– °C–
6.4.2 Thermal hysteresis Δ
T
JSD
–10–K
1)
Overvoltage Protection
6.4.3 Drain clamp voltage
V
Clamp
42 – 55 V V
IN
= 0 V;
I
D
= 10 mA;
Current Limitation and Short Circuit Protection
6.4.4 Current limitation
I
lim
0.6 0.9 1.2 A V
IN
= 10 V;V
DS
= 12 V;
t
measure
= 4 × t
dlim
T
J
= 25 °C
1)
0.3 – – T
J
= 150 °C
––1.4
T
J
= -40 °C
1)
6.4.5 Current limitation delay time t
dlim
––50μs
1)