Datasheet

Data Sheet 16 Rev. 2.0, 2010-05-28
High Current H-Bridge
BTM7752G
Block Description and Characteristics
6.3.5 Short Circuit Protection
The device provides embedded protection functions against
• output short circuit to ground
• output short circuit to supply voltage
• short circuit of load
The short circuit protection is realized by the previously described current limitation in combination with the over-
temperature shut down (see
Chapter 6.3.3) of the device.
6.3.6
Pos. Parameter Symbol Limit Values Unit Test Conditions
Min. Typ. Max.
Over Voltage Lock Out
Switch-ON voltage V
OV(ON)
27.8 – – V V
s
decreasing
Switch-OFF voltage V
OV(OFF)
28 – 30 V V
s
increasing
ON/OFF hysteresis V
OV(HY)
– 0.2 – V
1) Not subject to production test, specified by design.
1)
Under Voltage Shut Down
Switch-ON voltage V
UV(ON)
– – 5.5 V V
S
increasing
Switch-OFF voltage V
UV(OFF)
4.0 – 5.4 V V
S
decreasing
ON/OFF hysteresis V
UV(HY)
– 0.2 – V
1)
Thermal Shut Down
Thermal shut down junction
temperature
T
jSD
155 175 200 °C
1)
; V
S
≤ 18 V
Thermal switch on junction
temperature
T
jSO
153 – 190 °C
1)
Thermal hysteresis ΔT – 7 – °C
1)
Reset pulse at INH and IN pin
(INH, IN1 and IN2 low)
t
reset
8 – – µs
1)
Current Limitation
Current limitation detection
level high side
I
CLH0
8 12 16 A V
S
= 13.5 V
Current limitation detection
level low side
I
CLL0
8 12 16 A V
S
= 13.5 V
Shut off time for HS and LS t
CLS
50 100 200 µs V
S
= 13.5 V, T
j
= 25 °C
Electrical Characteristics - Protection Functions
V
S
= 8 V to 18 V, T
j
= -40 °C to +150 °C, VS pins shorted, all voltages with respect to ground, positive current
flowing into pin (unless otherwise specified)
6.3.1
6.3.2
6.3.3
6.3.4
6.3.5
6.3.6
6.3.7
6.3.8
6.3.9
6.3.10
6.3.11
6.3.12
6.3.13