Data Sheet

9

Rev 1.0, 2012-10-01

TLE 8088 EM

Voltage Regulator

5

Voltage Regulator

5.1

Voltage Regulator

The TLE8088EM integrates a voltage regulator for load currents up to 250mA. The voltage applied to pin VS is

regulated at pin V5DD to 5.0 V with a precision of

±2%. The sophisticated design allows to achieve stable

operation even with ceramic output capacitors down to 470nF. The voltage regulator features under-voltage reset,

power on reset and watchdog. It is protected against over-current, short circuit and over temperature conditions.

The low-side switch function and the K-line transceiver are independent of the reset and watchdog signals.

Figure 3

5V Supply

5.2

Power On Reset and Reset Output

Reset output is an open drain output. When the level of

V

remains low for the power-on reset delay time

T

reset reaction time

t

down (

V

The level of the reset threshold for increasing

V

V

The reset and watchdog signals are for external use and do not affect the state of the channels and K-line

transceiver. The correct functionality of the devices is ensured by an independent voltage monitoring circuitry.

+

-

Vref

V5DD

VS

e.g. µC