BTS711L1 Просмотр технического описания (PDF) - Infineon Technologies

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BTS711L1

Smart High-Side Power Switch

Infineon Technologies 

Smart High-Side Power Switch

BTS711L1

Timing diagrams

Timing diagrams are shown for chip 1 (channel 1/2). For chip 2 (channel 3/4) the diagrams

are valid too. The channels 1 and 2, respectively 3 and 4, are symmetric and consequently

the diagrams are valid for each channel as well as for permuted channels

Figure 1a: Vbb turn on:

,1

Figure 2b: Switching an inductive load

,1

,1

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9

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Figure 2a: Switching a lamp:

,1

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, /2/

W

W

*) if the time constant of load is too large, open-load-status may

occur

Figure 3a: Turn on into short circuit:

shut down by overtemperature, restart by cooling

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67

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,

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The initial peak current should be limited by the lamp and not by

the initial short circuit current IL(SCp) = 7.5 A typ. of the device.

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67

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Heating up of the chip may require several milliseconds, depending

on external conditions (toff(SC) vs. Tj,start see page 11)

Data Sheet

13

Rev 1.2, 2010-03-16

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