BTS308 datasheet(4/14 Pages) INFINEON

4 / 14 page

BTS 308

Parameter and Conditions

Symbol

Values

Unit

at Tj = 25 °C, Vbb = 24 V unless otherwise specified

min

typ

max

Semiconductor Group

Page 4

2003-Oct-01

Protection Functions

Initial peak short circuit current limit (pin 3 to 5)

6),

( max 100

µs if VON > VON(SC) )

IL(SCp)

Vbb = 12V

Tj =-40°C:

Tj =25°C:

Tj =+150°C:

2.5

Short circuit shutdown delay after input pos. slope

VON > VON(SC),

Tj =-40..+150°C:

min value valid only, if input "low" time exceeds 60

µs

td(SC)

100

µs

Output clamp (inductive load switch off)

at VOUT = Vbb - VON(CL)

IL= 1 A, Tj =-40..+150°C: VON(CL)

Short circuit shutdown detection voltage

(pin 3 to 5)

VON(SC)

3.5

Thermal overload trip temperature

Tjt

150

°C

Thermal hysteresis

∆T

Reverse battery (pin 3 to 1)

)

-Vbb

Diagnostic Characteristics

Open load detection current

Tj=-40...+150°C:

(included in standby current Ibb(off))

IL(off)

µA

Open load detection voltage

Tj=-40..150°C: VOUT(OL)

)

Integrated protection functions are designed to prevent IC destruction under fault conditions described in the

data sheet. Fault conditions are considered as "outside" normal operating range. Protection functions are not

designed for continuous repetitive operation.

)

Short circuit current limit for max. duration of td(SC) max=100 µs, prior to shutdown

)

Requires 150

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

normally limited by the connected load. Input and Status currents have to be limited (see max. ratings page

2 and circuit page 7).

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