TLE8080EM

5V Supply, Reset and Supervision

Data Sheet

9

Rev. 1.1, 2012-10-19

5

5V Supply, Reset and Supervision

5.1

5V Supply

The TLE8080EM integrates a voltage regulator for load currents up to 250mA. The input voltage at VS is regulated

to 5V on V5DD with a precision of ±2%. The design allows to achieve stable operation even with ceramic output

capacitors down to 470 nF. It is protected against overload, short circuit, and over temperature conditions. For low

drop operation, a charge pump is implemented.

Figure 3

5V Supply

5.2

Power On Reset and Reset Output

The reset output NRO is an open drain output. When the level of

V

(increasing voltage

V

function and timing is illustrated in Figure 4. The reset reaction time (

t

“glitches” on the V5DD-line. In case of V5DD power down (decreasing voltage;

V

signal is generated at the pin NRO to reset an external micro controller. The level of the reset threshold for

increasing

V

With an active reset all power stages and the K-Line output are disabled and SPI commands are ignored.

+

-

Vref

V5DD

VS

e.g. µC