TLE6282G_08 Datasheet, PDF(2/16 Page) Infineon Technologies AG – Dual Half Bridge Driver IC Compatible to very low ohmic normal

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TLE6282G_08 Datasheet, PDF (2/16 Pages) Infineon Technologies AG – Dual Half Bridge Driver IC Compatible to very low ohmic normal

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Data Sheet TLE6282G

Application Block Diagram â Injector / Valve Drive

Watchdog

Reset

TLE

4278G

22ÂµF

47nF

10 â¦

47ÂµF

VS=12V

47 kâ¦

VCC

47 kâ¦

ÂµC

1ÂµF

BH1

DH1

ER1

GH1

SH1

BH2

DH2

GH2

DT/

DIS

SH2

TLE6282G

DL1

GL1

IH1

IL1

DL2

IH2

GL2

IL2

GND

220nF

Load 1

220nF

RSCDL1

RSCDL2

Load 2

RSCDL3

RSCDL4

This application diagram shows the principle schematics of a typical injector / valve drive. Other

configurations are possible as well. Freewheeling diodes are not considered. The voltage divider

networks, e.g. R = 10 kâ¦, across the two Low Side MOSFETs are an example as well; they allow

to increase the current limit threshold for Short Circuit protection SCD for the Low Side MOS-

FETs. As they pull down the Sources of the High Side MOSFETs (while the Low Side MOSFETs

are off), they allow to pre-charge the CBx capacitors during start-up (before the Driver IC gets en-

abled). The SCD current limit threshold can be increased for the High Side MOSFETs as well by

using voltage divider networks across the High Side MOSFETs. SCD can also be disabled (High

Side and / or Low Side MOSFETs).

Data Sheet

Rev 2.4 2008-03-18

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