TLE7368 datasheet(7/39 Pages) INFINEON

7 / 39 page

Data Sheet

Rev. 1.1, 2007-11-08

TLE7368

Pin Configuration

IN_LDO2

LDO2 input;

Connect this pin straight to the Buck converter output or add a dropper

in between to reduce power dissipation on the chip.

Q_LDO2

Voltage regulator 2 output;

3.3 V or 2.6 V, depending on the state of SEL_LDO2.

Block to GND with capacitor for stable regulator operation; selection of

capacitor

Q_LDO2 according to Chapter 4.4 and Chapter 6.

Q_T1

Tracking regulator 1 output;

Block to GND with capacitor for stable regulator operation; selection of

capacitor

Q_T1 according to Chapter 4.4 and Chapter 6.

Q_T2

Tracking regulator 2 output;

Block to GND with capacitor for stable regulator operation; selection of

capacitor

Q_T2 according to Chapter 4.4 and Chapter 6.

EN_uC

Enable input microcontroller;

High level enables / low level disables the IC except the stand-by

regulators;

Integrated pull-down resistor

EN_IGN

Enable input ignition line;

High level enables / low level disables the IC except the stand-by

regulators;

Integrated pull-down resistor

SEL_STBY Selection input for stand-by regulator;

Connect to GND to select 2.6 V output voltage for Q_STBY;

Connect straight to Q_STBY to select 1.0 V output voltage for Q_STBY

C1-

Charge pump negative #1;

Connect a ceramic capacitor 100 nF, to C1+

C2-

Charge pump negative #2;

Connect a ceramic capacitor 100 nF, toC2+

C1+

Charge pump positive #1;

Connect a ceramic capacitor 100 nF, to C1-

C2+

Charge pump positive #2;

Connect a ceramic capacitor 100 nF, to C2-

CCP

Charge pump output;

Connect a ceramic capacitor, 220 nF, to GND;

Used for internal IC supply, do not use for other circuitry.

GND_P

Power ground;

Exclusive GND connection of charge pump;

Connect this pin to the power ground star point on the PCB.

–

18, 19

GND_A

Analog ground connection;

Connect to exposed pad.

19, 20

20, 21, 22

Buck regulator input;

Connect to a pi-filter (or if not used to battery) with short lines; connect

filter capacitors in any case with short lines; connect a small ceramic

directly at the pin; For details refer to Chapter 6.

Interconnect the pins.

–

N.C.

Internally not connected; Connect to GND_A.

(TLE7368G)

(TLE7368E)

Symbol

Function

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