TLE7368_10 Datasheet, PDF (7/41 Pages) Infineon Technologies AG – Next Generation Micro Controller Supply

TLE7368
Pin Configuration
Pin
Pin
Symbol
(TLE7368G) (TLE7368E)
6
5
IN_LDO2
7
6
Q_LDO2
8
7
9
8
10
9
Q_T1
Q_T2
EN_uC
11
10
EN_IGN
12
11
SEL_STBY
13
12
C1-
14
13
C2-
15
14
C1+
16
15
C2+
17
16
CCP
18
17
GND_P
–
19, 20
18, 19
GND_A
20, 21, 22 IN
21
–
N.C.
Function
LDO2 input;
Connect this pin straight to the Buck converter output or add a dropper
in between to reduce power dissipation on the chip.
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 C_{Q_LDO2} according to Chapter 4.4 and Chapter 6.
Tracking regulator 1 output;
Block to GND with capacitor for stable regulator operation; selection of
capacitor C_{Q_T1} according to Chapter 4.4 and Chapter 6.
Tracking regulator 2 output;
Block to GND with capacitor for stable regulator operation; selection of
capacitor C_{Q_T2} according to Chapter 4.4 and Chapter 6.
Enable input microcontroller;
High level enables / low level disables the IC except the stand-by
regulators;
Integrated pull-down resistor
Enable input ignition line;
High level enables / low level disables the IC except the stand-by
regulators;
Integrated pull-down resistor
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
Charge pump negative #1;
Connect a ceramic capacitor 100 nF, to C1+
Charge pump negative #2;
Connect a ceramic capacitor 100 nF, toC2+
Charge pump positive #1;
Connect a ceramic capacitor 100 nF, to C1-
Charge pump positive #2;
Connect a ceramic capacitor 100 nF, to C2-
Charge pump output;
Connect a ceramic capacitor, 220 nF, to GND;
Used for internal IC supply, do not use for other circuitry.
Power ground;
Exclusive GND connection of charge pump;
Connect this pin to the power ground star point on the PCB.
Analog ground connection;
Connect to exposed pad.
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.
Internally not connected; Connect to GND_A.
Data Sheet
7
Rev. 2.1, 2010-11-22