Datasheet

Data Sheet 14 Rev. 1.6, 2009-02-03

TLE 4471

Application Information

Figure 4 Application Diagram

Input

With an input voltage between 5.5 V <

< 40 V the regulator works in its normal

operating range. If the input voltage exceeds the 40 V up to 60 V for less than 400 ms,

e.g. caused by a load dump, the active components are switched off.

For compensating line influences and to avoid steep input edges above 1 V/µs an input

capacitor is needed. Using a resistor of approx. 1 Ω in series to the input capacitor, the

oscillating circuit consisting of input inductance and input capacitor is damped.

AES02867

Tracking

Output 2

REF2

Main

Watchdog /

Reset

RADJ

Enable

Logic

Tracking

Output 3

REF3

Sensor /

Peripheral

Sensor /

Peripheral

Enable-Signal

Ignition KL.

BAT

KL.

Controller

optional