MPC17559EPSLASHR2 datasheet(11/19 Pages) FREESCALE

11 / 19 page

Analog Integrated Circuit Device Data

Freescale Semiconductor

17559

FUNCTIONAL DESCRIPTION

LOGIC COMMAND REGISTERS

VMF2, but they must be connected together on the printed

circuit board.

SUPPLY VOLTAGE (VDD)

The VDD terminal carries the logic supply voltage and

current into the logic sections of the 17559. The VDD has an

undervoltage threshold. If the supply voltage drops between

the undervoltage threshold, the output power stage switches

to a tri-state condition. When the supply voltage returns to a

level that is above the threshold, the power stage

automatically resumes normal operation according to the

established condition of the input terminals.

GROUND (GND1 AND GND2)

The GND1 and GND2 are main ground terminals for

internal logic. They are connected internally.

POWER INPUT (PWM)

The pulse width modulation input provides a single input

terminal to accomplish PWM modulation of the output pairs in

accordance with the states of input conditions described in

Table 7.

LOGIC COMMAND REGISTERS

Table 5. Operating Function

Bias Circuit

H Bridge Driver

3 Phase Driver

Comparator

Stop

Output “L”

Operation

L = Low.

H = High.

*1: CPUO1, CPVO1, CPWO1 Output = L, CPUO2, CPVO2, CPWO2 Output = H.

Table 6. H-Bridge Driver

Input

Output

FIn

RIn

FOn

ROn

L = Low.

H = High.

X = Don’t care.

Z = High impedance.

Table 7. Three-Phase Driver

Input

Output

UIn

VIn

WIn

UOn

VOn

WOn

PWM

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