BSP 550

Parameter and Conditions

Symbol

Values

Unit

at

min

typ

max

Semiconductor Group

Page 3

20.06.96

Operating Parameters

Operating voltage

12

40

V

Undervoltage shutdown

7

--

10.5

V

Undervoltage restart

--

--

11

V

Undervoltage hysteresis

∆V

bb(under)

--

0.4

--

V

Standby current (pin 4),

--

10

25

50

µA

Operating current (pin 2),

--

1

1.6

mA

leakage current (pin 1)

--

--

2

µA

Protection Functions

Current limit (pin 4 to 1)

1.4

1.4

2.5

--

4.0

4.8

A

Overvoltage protection

I

48

--

--

V

Output clamp (ind. load switch off)

--

72

--

V

Thermal overload trip temperature

135

150

--

°C

Thermal hysteresis

∆T

jt

--

10

--

K

--

--

0.3

J

Reverse Battery

30

V

Continious reverse drain current

--

--

1

A

Drain-Source diode voltage

--

--

1.2

V

6) increase of standby current at T

7) while demagnetizing load inductance, dissipated energy is E

approx.

1/

2 * L * I

2

L

* (

VON(CL)

VON(CL)-Vbb

)

8) Requires 150 Ω resistor in GND connection. Reverse load current (through intrinsic drain-source diode)

is normally limited by the connected load.