TLE9461ES datasheet(133/140 Pages) INFINEON

133 / 140 page

Datasheet

133

Rev.1.1

2019-09-27

TLE9461ES

Lite CAN SBC Family

Application Information

Table 30

Bill of Material for Simplified Application Diagram

Ref.

Typical Value

Purpose / Comment

Capacitances

68µF

Buffering capacitor to cut off battery spikes, value depending on

application requirements

100nF ceramic

EMC, blocking capacitor, ceramic X7R or equivalent, ESR < 50mΩ

2.2µF low ESR

Blocking capacitor, min. 1µF for stability and max. 47µF recommended

100nF ceramic

Spike filtering, ceramic X7R or equivalent, ESR < 50 mΩ to improve

stability of supply for microcontroller; not needed for SBC

2.2µF low ESR

Blocking capacitor, min. 470nF for stability;

if used for CAN supply place a 100nF ceramic capacitor in addition very

close to VCAN pin for optimum EMC behavior

4.7nF / OEM dependent Split termination stability

C8,9

10nF

Spike filtering, as required by application,

mandatory protection for off-board connections, (see also Simplified

Application Diagram with the Alternative Measurement Function)

C10

22nF

As required by application and GPIO current capability (see also

Chapter 11.1.2), mandatory protection for off-board connections

Resistances

1kΩ

Device protection against reverse battery

60Ω / OEM dependent

CAN bus termination

60Ω / OEM dependent

CAN bus termination

10kΩ

Wetting current of the switch, as required by application

R5,6

10kΩ

WK pin current limitation, e.g. for ISO pulses (see also Simplified

Application Diagram with the Alternative Measurement Function)

R7, 8

depending on

application

and microcontroller

Voltage Divider resistor to adjust measurement voltage to

microcontroller ADC input range (see also Simplified Application

Diagram with the Alternative Measurement Function)

10Ω

As required by application, ESD protection, mandatory protection for

off-board connections only

R10, 11 47kΩ

Reverse battery protection

R12

100kΩ

Leakage discharge resistor

Active Components

e.g. BAS 3010A, Infineon Reverse polarity protection for VS supply pins

e.g. BAS 21, Infineon

Reverse battery protection

12V Zener Diode

Gate protection

e.g. BAS 21, Infineon

Reverse battery protection for measurement circuitry

e.g. LED

circuit example: Illumination LED

e.g. IPB80N04S4-04

Terminal 30 (Kl. 30) Switch, N-MOSFET

e.g. IPB80N04S4-04

Reverse battery protection, N-MOSFET

TLE9461ES Datasheet(PDF) 133 Page - Infineon Technologies AG

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