33911 데이터 시트보기 (PDF) - Freescale Semiconductor

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33911

LIN System Basis Chip with DC Motor Pre-driver

Freescale Semiconductor 

PIN CONNECTIONS

MC33911G5AC/MC3433911G5AC

Table 2. 33911 Pin Definitions

A functional description of each pin can be found in the Functional Pin Description section beginning on page 24.

Pin

Pin Name

Formal Name

Definition

12

WDCONF

Watchdog

Configuration Pin

This input pin is for configuration of the watchdog period and allows the

disabling of the watchdog.

13

LIN

LIN Bus

This pin represents the single-wire bus transmitter and receiver.

This pin is the device LIN ground connection. It is internally connected to the

14

LGND

LIN Ground Pin

PGND pin.

15,16, 20 &

21

NC

Not Connected

This pin must not be connected or connected to ground.

17

LS2

Low Side Outputs Relay drivers low side outputs.

19

LS1

This pin is the device low side ground connection. It is internally connected to

18

PGND

Power Ground Pin the LGND pin.

22

L2

These pins are the wake-up capable digital inputs(1). In addition, all Lx inputs

23

L1

Wake-up Inputs

can be sensed analog via the analog multiplexer.

24

NC

Not Connected

This pin must not be connected or connected to VS2.

25

HS1

High Side Output High side switch output.

26

VS2

These pins are device battery level power supply pins. VS2 is supplying the

27

VS1

Power Supply Pin HS1 driver while VS1 supplies the remaining blocks.(2)

This pin can be left opening or connected to any potential ground or power

28

NC

Not Connected

supply

29

VSENSE

Voltage Sense Pin Battery voltage sense input.(3)

31

VDD

Voltage Regulator

Output

+5.0 V main voltage regulator output pin.(4)

32

AGND

Analog Ground Pin This pin is the device analog ground connection.

Notes

1. When used as digital input, a series 33 kΩ resistor must be used to protect against automotive transients.

2. Reverse battery protection series diodes must be used externally to protect the internal circuitry.

3. This pin can be connected directly to the battery line for voltage measurements. The pin is self protected against reverse battery

connections. It is strongly recommended to connect a 10 kΩ resistor in series with this pin for protection purposes.

4. External capacitor (2.0 µF < C < 100 µF; 0.1 Ω < ESR < 10 Ω) required.

33911

6

Analog Integrated Circuit Device Data

Freescale Semiconductor

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