908E622_12 Datasheet, PDF (1/63 Pages) Freescale Semiconductor, Inc – Integrated Quad Half-bridge, Triple High Side amd EC Glass Driver with Embedded MCU and LIN for High End Mirror

Freescale Semiconductor
Technical Data
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
• 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
100 nF
4.7 μF
μC PortA
μC PortB
μC PortC
μC PortD
μC PortE
Internally Connected
Internally Connected
LIN
VSP1:8]
VDDA/VREFH
L0
EVDD
HB1
VDD
VSSA/VREFL
HB2
EVSS
VSS
RST A
908E622
HB3
RST
HB4
IRQ A
HS1
IRQ
HS2
PTA0/BD0
PTA1/KBD1
HS3
PTA2/KBD2
PTA3/KBD3
HS1
PTA4/KBD4
PTB3/AD3
ECR
EC
PTB4/AD4
PTB5/AD5
PTC2/MCLK
PTC3/OSC2
HVDD
A0
A0CST
PTC4/OSC1
H0
PTD0/TACH0
PTD1/TACH1
TESTMODE
PTE1/RXD GND[1:4]
EP
Document Number: MM908E622
Rev. 3.0, 4/2012
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)
Temperature
Range (T_A)
Package
MM908E622ACPEK
-40 to 85 °C 54 SOICW-EP
>22 μF
Wake-up Input
100 nF
M
M
4 x Half-bridge Outputs
M
High Side Output 2
High Side Output 1
High Side Output 1
High Side Output 3
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
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.