908E626 Datasheet, PDF (4/38 Pages) Freescale Semiconductor, Inc – Integrated Stepper Motor Driver with Embedded MCU and LIN Serial Communication

TERMINAL CONNECTIONS
Table 1. 908E626 TERMINAL DEFINITIONS
A functional description of each terminal can be found in the Functional Terminal Description section beginning on page 14.
Die Terminal Terminal Name
Formal Name
Definition
MCU
42
PTE1/ RXD
Port E I /O
This terminal is a special-function, bidirectional I/O port terminal that
can is shared with other functional modules in the MCU.
MCU
43
48
VREFL
VREFH
ADC References
These terminals are the reference voltage terminals for the analog-
to-digital converter (ADC).
MCU
44
47
VSSA
VDDA
ADC Supply
Terminals
These terminals are the power supply terminals for the analog-to-
digital converter.
MCU
45
46
EVSS
EVDD
MCU Power Supply These terminals are the ground and power supply terminals,
Terminals
respectively. The MCU operates from a single power supply.
MCU
49
50
52
53
54
MCU
51
PTA4/KBD4
PTA3/KBD3
PTA2/KBD2
PTA1/KBD1
PTA0/KBD0
FLSVPP
Port A I /Os
These terminals are special-function, bidirectional I/O port terminals
that are shared with other functional modules in the MCU.
Test Terminal
For test purposes only. Do not connect in the application.
Analog
15
FGEN
Current Limitation
Frequency Input
This is the input terminal for the half-bridge current limitation PWM
frequency.
Analog
16
BEMF
Back Electromagnetic This terminal gives the user information about back electromagnetic
Force Output
force (BEMF).
Analog
17
RST_A
Internal Reset
This terminal is the bidirectional reset terminal of the analog die.
Analog
18
IRQ_A
Internal Interrupt
Output
This terminal is the interrupt output terminal of the analog die
indicating errors or wake-up events.
Analog
19
SS
Slave Select
This terminal is the SPI slave select terminal for the analog chip.
Analog
20
LIN
LIN Bus
This terminal represents the single-wire bus transmitter and receiver.
Analog
23
26
29
32
Analog
24
27
31
Analog
25
30
Analog
34
HB1
HB2
HB3
HB4
VSUP1
VSUP2
VSUP3
GND1
GND2
HVDD
Half-Bridge Outputs
This device includes power MOSFETs configured as four half-bridge
driver outputs. These outputs may be configured for step motor
drivers, DC motor drivers, or as high-side and low-side switches.
Power Supply
Terminals
These terminals are device power supply terminals.
Power Ground
Terminals
Switchable V_DD
Output
These terminals are device power ground connections.
This terminal is a switchable V_DD output for driving resistive loads
requiring a regulated 5.0 V supply; e.g., 3-terminal Hall-effect
sensors.
Analog
38
VDD
Voltage Regulator
Output
The + 5.0 V voltage regulator output terminal is intended to supply
the embedded microcontroller.
Analog
40
VSS
Voltage Regulator
Ground
Ground terminal for the connection of all non-power ground
connections (microcontroller and sensors).
Analog
41
–
EP
RXD
Exposed Pad
LIN Transceiver
Output
Exposed Pad
This terminal is the output of LIN transceiver.
The exposed pad terminal on the bottom side of the package
conducts heat from the chip to the PCB board.
908E626
4
Analog Integrated Circuit Device Data
Freescale Semiconductor