33910 datasheet(33/90 Pages) FREESCALE

33 / 90 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

33910

FUNCTIONAL DEVICE OPERATIONS

OPERATIONAL MODES

MC33910G5AC/MC3433910G5AC

TEMPERATURE SENSE GAIN

The analog multiplexer can be configured via SPI to allow

the ADOUT0 pin to deliver the internal junction temperature

of the device.

The graph below illustrates the internal chip temp sense

obtained per characterization at 3 temperatures with 3

different lots and 30 samples.

Figure 16. Temperature Sense Gain

HIGH SIDE OUTPUT PINS HS1 AND HS2

These outputs are two high side drivers intended to drive

small resistive loads or LEDs incorporating the following

features:

• PWM capability (software maskable)

• Open load detection

• Current limitation

• Over-temperature shutdown (with maskable interrupt)

• High-voltage shutdown (software maskable)

• Cyclic sense

The high side switches are controlled by the bits HS1:2 in

the High Side Control Register (HSCR).

PWM Capability (direct access)

Each high side driver offers additional (to the SPI control)

direct control via the PWMIN pin.

If both the bits HS1 and PWMHS1 are set in the High Side

Control Register (HSCR), then the HS1 driver is turned on if

the PWMIN pin is high and turned of if the PWMIN pin is low.

This applies to HS2 configuring HS2 and PWMHS2 bits.

Temperature Sense Analog Output Voltage

2.5

3.5

4.5

-50

100

150

Temperature (°C)

33910 Datasheet(PDF) 33 Page - Freescale Semiconductor, Inc