TLE8209-2SA データシートの表示（PDF） - Infineon Technologies

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TLE8209-2SA

SPI Programmable H-Bridge

Infineon Technologies 

TLE8209-2SA

Protection and Monitoring

operation, i.e. the outputs follow the inputs according to the truth table. The current limit IL can be programmed to

four different values by setting the SPI bits CL1 and CL2 in the SPI configuration register. To avoid high chopper

frequencies the time between two transients ttrans is limited.

Current limitation is available in H-bridge operation mode, not in single switch operation mode. This means, that

the current limit, current limit hysteresis and blanking time has no effect in single switch operation mode.

8.3

Temperature Dependent Current Reduction

For TILR < Tj < TSD the current limit decreases from IL as set by the SPI to IL_TSD = 2.5 A typ. as shown in

Figure 10.

A

IL

tolerance of temperature

dependent current

reduction

range of over-

temperature shut-down

IL_TSD

(typ. 2.5A)

Figure 10

TILR

TSD

(typ. 165°C) (min. 175°C)

Temperature Dependent Current Reduction

Tj [°C]

8.4

Short Circuit to Ground

short circuit detected

current limitation active

IOUK

IL

Ihys

tb

IOUT

Short

IN1

OUT1

IN2

OUT2

Figure 11 Short to Ground Detection

Data Sheet

t<tb

19

output off

current tracking

tDF_H

tDF_OFF

tristate

tristate

time

Rev. 1.2, 2012-12-20

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