33910 datasheet(6/90 Pages) FREESCALE

6 / 90 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

33910

PIN CONNECTIONS

MC33910G5AC/MC3433910G5AC

WDCONF

Watchdog

Configuration Pin

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

disabling of the watchdog.

LIN

LIN Bus

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

LGND

LIN Ground Pin

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

PGND pin.

15, 16, 17, 19,

20, 21 & 22

Not Connected

This pin must not be connected or connected to ground.

PGND

Power Ground Pin

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

the LGND pin.

Wake-up Input

This pin is the wake-up capable digital input(1). In addition, L1 input can be

sensed analog via the analog multiplexer.

HS2

HS1

High Side Outputs

High side switch outputs.

VS2

VS1

Power Supply Pin

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

HSx drivers while VS1 supplies the remaining blocks.(2)

Not Connected

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

supply

VSENSE

Voltage Sense Pin

Battery voltage sense input.(3)

HVDD

Hall Sensor Supply

Output

+5.0 V switchable supply output pin.(4)

VDD

Voltage Regulator

Output

+5.0 V main voltage regulator output pin.(5)

AGND

Analog Ground Pin

This pin is the device analog ground connection.

Notes

When used as digital input, a series 33 k

Ω resistor must be used to protect against automotive transients.

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

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 k

Ω resistor in series with this pin for protection purposes.

External capacitor (1.0 µF < C < 10 µF; 0.1

Ω < ESR < 5.0 Ω) required.

External capacitor (2.0 µF < C < 100 µF; 0.1

Ω < ESR < 10 Ω) required.

Table 2. 33910 Pin Definitions

A functional description of each pin can be found in the Functional Pin Description.

Pin Name

Formal Name

Definition

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