Data Sheet

11

Rev.1.2, 2008-09-01

Smart High-Side Power Switch

BTS5242-2L

Block Description and Electrical Characteristics

A high signal at the input pin causes the power DMOS to switch on with a dedicated slope, which is optimized in

terms of EMC emission.

Figure 6

Switching a Load (resistive)

5.1.3

Inductive Output Clamp

because the inductance intends to continue driving the current.

Figure 7

Output Clamp (OUT1 and OUT2)

To prevent destruction of the device, there is a voltage clamp mechanism implemented that keeps that negative

allowed load inductance is limited.

Figure 8

Switching an Inductance

IN

t

SwitchOn.emf

t

90%

10%

30%

70%

dV /

40%

OutputClamp.emf

OUT

GND

VBB

L,

V

OUT

InductiveLoad.emf

t

t

IN = 5V

IN = 0V