Freescale Semiconductor
Technical Data
Document Number: MM908E622
Rev. 3.0, 4/2012
Integrated Quad Half-bridge,
Triple High Side and EC Glass
Driver with Embedded MCU and
LIN for High End Mirror
The 908E622 is an integrated single package solution that includes
a high-performance HC08 microcontroller with a SMARTMOS analog
control IC. The HC08 includes flash memory, a timer, enhanced serial
communications interface (ESCI), a 10 bit analog-to-digital converter
(ADC), internal serial peripheral interface (SPI), and an internal clock
generator module (ICG). The analog control die provides four half-
bridge and three high side outputs with diagnostic functions, an EC
glass driver circuit, a Hall effect sensor input, analog inputs, voltage
regulator, window watchdog, and local interconnect network (LIN)
physical layer.
The single package solution, together with LIN, provides optimal
application performance adjustments and space saving PCB design.
It is well-suited for the control of automotive high-end mirrors.
Features
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High performance M68HC908EY16 core
16 KB of on-chip flash memory, 512 B of RAM
Two 16-bit, two-channel timers
LIN physical layer interface
Autonomous MCU watchdog / MCU supervision
One analog input with switchable current source
Four low R
DS(ON)
half-bridge outputs
Three low R
DS(ON)
high side outputs
EC glass driver circuitry
Wake-up and 2 or 3-pin Hall effect sensor input
12 microcontroller I / Os
VSP1:8]
LIN
L0
VDDA/VREFH
EVDD
4.7
μF
HB1
VDD
100 nF
VSSA/VREFL
HB2
EVSS
VSS
HB3
RST A
RST
HB4
IRQ A
HS1
IRQ
HS2
PTA0/BD0
HS3
PTA1/KBD1
μC
PortA
PTA2/KBD2
HS1
PTA3/KBD3
PTA4/KBD4
ECR
PTB3/AD3
EC
μC
PortB
PTB4/AD4
HVDD
PTB5/AD5
A0
PTC2/MCLK
A0CST
μC
PortC
PTC3/OSC2
PTC4/OSC1
H0
Internally Connected
PTD0/TACH0
μC
PortD
TESTMODE
PTD1/TACH1
GND[1:4]
EP
PTE1/RXD
μC
PortE
Internally Connected
908E622
QUAD HALF-BRIDGE, TRIPLE HIGH SIDE
SWITCH AND EC GLASS CIRCUITRY WITH
EMBEDDED MCU AND LIN
EK SUFFIX
98ASA10712D
54-PIN SOICW-EP
ORDERING INFORMATION
Device
(Add
an R2 suffix for
Tape and reel orders)
MM908E622ACPEK
Temperature
Range (T
A
)
- 40 to 85 °C
Package
54 SOICW-EP
>22
μF
Wake-up Input
100 nF
M
M
M
High Side Output 1
High Side Output 2
High Side Output 3
High Side Output 1
EC - Glass Control
Switched 5.0 V Output
Analog Input with Current Source
Analog Input Current Source Trim
Two 3-pin Hall Sensor Input
Pull to GND for User Mode
4 x Half-bridge Outputs
908E622
Figure 1. 908E622 Simplified Application Diagram
Freescale Semiconductor, Inc. reserves the right to change the detail specifications,
as may be required, to permit improvements in the design of its products.
© Freescale Semiconductor, Inc., 2005-2012. All rights reserved.
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
