MM908E425AIDWB FREESCALE [Freescale Semiconductor, Inc], MM908E425AIDWB Datasheet

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MM908E425AIDWB

Manufacturer Part Number
MM908E425AIDWB
Description
Integrated Quad Half H-Bridge with Power Supply, Embedded MCU, and LIN Serial Communication
Manufacturer
FREESCALE [Freescale Semiconductor, Inc]
Datasheet
Freescale Semiconductor
Advance Information
* This document contains certain information on a new product.
Specifications and information herein are subject to change without notice.
© Freescale Semiconductor, Inc., 2006. All rights reserved.
Integrated Quad Half H-Bridge
with Power Supply, Embedded
MCU, and LIN Serial
Communication
high-performance HC08 microcontroller with a SMARTMOS
analog control IC. The HC08 includes Flash Memory, a timer,
Enhanced Serial Communications Interface (ESCI), an Analog-to-
Digital Converter (ADC), Serial Peripheral Interface (SPI) (only
internal), and an Internal Clock Generator (ICG) module. The analog
control die provides fully protected H-Bridge/high-side outputs,
voltage regulator, autonomous watchdog with cyclic wake-up, and
Local Interconnect Network (LIN) physical layer.
application performance adjustments and space-saving PCB design.
It is well suited for the control of automotive mirror, door lock, and
light-levelling applications.
Features
The 908E425 is an integrated single-package solution including a
The single-package solution, together with LIN, provides optimal
• High-Performance M68HC908EY16 Core
• 16 K Bytes of On-Chip Flash Memory
• 512 Bytes of RAM
• Internal Clock Generation Module
• Two 16-bit, 2-Channel Timers
• 10-Bit Analog-to-Digital Converter
• LIN Physical Layer
• Autonomous Watchdog with Cyclic Wakeup
• Three Two-Pin Hall-Effect Sensor Input Ports
• One Analog Input with Switchable Current Source
• Four Low RDS (ON) Half-Bridge Outputs
• One Low RDS (ON) High-Side Output
• 13 Micro Controller I/Os
Figure 1. 908E425 Simplified Application Diagram
LIN
VREFH
VDDA
EVDD
VDD
VREFL
VSSA
EVSS
VSS
RST
RST_A
IRQ
IRQ_A
SS
PTB1/AD1
RXD
PTE1/RXD
PTD1/TACH1
FGEN
BEMF
PTD0/TACH0/BEMF
3
VSUP
908E425
2
GND
TM
EP
PORT A I/OS
PORT B I/OS
PORT C I/OS
HVDD
HB1
HB2
HB3
HB4
PA1
HS
H1
H2
H3
MM908E425AIDWB
M
Device
H-BRIDGE POWER SUPPLY WITH
M
Switchable Internal
Analog Input with
Microcontroller
2-Terminal Hall-Effect
Current Source
High-Side
Output
V
EMBEDDED MCU AND LIN
ORDERING INFORMATION
Sensor Inputs
Ports
M
DD
Three
Output
4 Half-Bridges
Controlling
3 Loads
Document Number: MM908E425
54-PIN SOICWB-EP
908E425
98ASA10712D
DWB SUFFIX
Temperature
Range (T
0°C to 85°C
A
Rev. 1.0, 8/2006
)
54 SOICW EP
Package

Related parts for MM908E425AIDWB

MM908E425AIDWB Summary of contents

Page 1

... Figure 1. 908E425 Simplified Application Diagram * This document contains certain information on a new product. Specifications and information herein are subject to change without notice. © Freescale Semiconductor, Inc., 2006. All rights reserved. H-BRIDGE POWER SUPPLY WITH TM Device MM908E425AIDWB 3 908E425 VSUP LIN HB1 VREFH ...

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BLOCK DIAGRAM GND1-2 VSUP1-3 RST_A IRQ_A BEMF FGEN LIN RXD SS PTE1/RXD PTD1/TACH1 PTD0/TACH0 PTB1/AD1 RST IRQ VREFL Bus Internal VSSA EVSS EVDD VDDA VREFH Figure 2. 908E425 Simplified Internal Block Diagram 908E425 2 BLOCK DIAGRAM Analog Integrated Circuit Device ...

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PTB7/AD7/TBCH1 PTB6/AD6/TBCH0 PTC4/OSC1 PTC3/OSC2 PTC2/MCLK PTB5/AD5 PTB4/AD4 PTB3/AD3 PTB1/AD1 PTD0/TACH0/BEMF PTD1/TACH1 Figure 3. 908E425 Pin Connections (Transparent Package Top View) Table 1. 908E425 Pin Definitions A functional description of each pin can be found in the Functional Pin Description section ...

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PIN CONNECTIONS Table 1. 908E425 Pin Definitions (continued) A functional description of each pin can be found in the Functional Pin Description section beginning on Pin Function Pin Pin Name MCU 44 VSSA 47 VDDA MCU 45 EVSS 46 EVDD ...

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Table 2. Maximum Ratings All voltages are with respect to ground unless otherwise noted. Exceeding these ratings may cause a malfunction or permanent damage to the device. Ratings ELECTRICAL RATINGS Supply Voltage Analog Chip Supply Voltage under Normal Operation, Steady ...

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ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics All characteristics are for the analog chip only. Refer to the 68HC908EY16 specification for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V ≤ V ...

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Table 3. Static Electrical Characteristics (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 specification for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V ≤ V Typical values noted reflect the approximate parameter ...

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ELECTRICAL CHARACTERISTICS STATIC ELECTRICAL CHARACTERISTICS Table 3. Static Electrical Characteristics (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 specification for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V ≤ V Typical values ...

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Table 3. Static Electrical Characteristics (continued) All characteristics are for the analog chip only. Refer to the 68HC908EY16 specification for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V ≤ V Typical values noted reflect the approximate parameter ...

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ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS DYNAMIC ELECTRICAL CHARACTERISTICS Table 4. Dynamic Electrical Characteristics All characteristics are for the analog chip only. Please refer to the specification for 68HC908EY16 for characteristics of the microcontroller chip. Characteristics noted under conditions 9.0 V ...

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Table 5. Microcontroller Description For a detailed microcontroller description, refer to the MC68HC908EY16 data sheet. Module Core High-Performance HC08 Core with a Maximum Internal Bus Frequency of 8.0 MHz Timer Two 16-Bit Timers with Two Channels (TIM A and TIM ...

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ELECTRICAL CHARACTERISTICS TIMING DIAGRAMS t t TXD-LIN-LOW Tx-LIN-low Tx TXD TXD LIN LIN Recessive State 0.4 V 0.4 VSUP Rx RXD t t LIN-RXD-LOW LIN-Rx-low ∆t Fall-time 0.8 V 0.8 VSUP SUP 0.2 V 0.2 VSUP SUP SR = ∆t ...

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T = 25°C J 1.0 0.8 0.6 0.4 0.2 0.0 0.0 0.5 Figure 6. Free Wheel Diode Forward Voltage vs I 250 200 150 100 Analog Integrated Circuit Device Data Freescale Semiconductor ELECTRICAL PERFORMANCE ...

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FUNCTIONAL DESCRIPTION INTRODUCTION The 908E425 device was designed and developed as a highly integrated and cost-effective solution for automotive and industrial applications. For automotive body electronics, the 908E425 is well suited to perform complete mirror, door lock, and light-levelling control ...

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CURRENT LIMITATION FREQUENCY INPUT PIN (FGEN) Input pin for the half-bridge current limitation and the high- side inrush current limiter PWM frequency. This input is not a real PWM input pin; it should just supply the period of the PWM. ...

Page 16

FUNCTIONAL DESCRIPTION FUNCTIONAL PIN DESCRIPTION ADC REFERENCE PINS (VREFL AND VREFH) VREFL and VREFH are the reference voltage pins for the ADC recommended that a high-quality ceramic decoupling capacitor be placed between these pins. Important VREFH is the ...

Page 17

FUNCTIONAL DEVICE OPERATION INTERRUPTS The 908E425 has seven different interrupt sources as described in the following paragraphs. The interrupts can be disabled or enabled via the SPI. After reset all interrupts are automatically disabled. LOW-VOLTAGE INTERRUPT The Low-Voltage Interrupt (LVI) ...

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FUNCTIONAL DEVICE OPERATION OPERATIONAL MODES 908E425 18 MCU Die Analog Die From Reset Initialize Operate SPI STOP MREG (MREG off) Wait for Action STOP Hallport IRQ Assert IRQ_A Interrupt? SPI: Reason for Interrupt MREG Operate MREG = Main ...

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SERIAL SPI INTERFACE The SPI creates the communication link between the microcontroller and the 908E425. The interface consists of four pins. See • — Slave Select SS • MOSI — Master-Out Slave-In SS Read/Write, Address, Parity MOSI R ...

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FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS SLAVE DATA BYTE Contains the contents of selected register. During a write operation it includes the register content prior to a write operation. Table 6. List of Registers Addr Register Name R/W $01 ...

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INTERRUPT FLAG REGISTER (IFR Register Name and Address: IFR - $05 Bits Read 0 HPF LINF HTF LVF Write Reset HALL-EFFECT SENSOR INPUT PIN FLAG BIT (HPF ) This read ...

Page 22

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS INTERRUPT MASK REGISTER (IMR) Register Name and Address: IMR - $04 Bits Read 0 HPIE LINIE HTIE LVIE Write Reset HALL-EFFECT SENSOR INPUT ...

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RESET The 908E425 chip has four internal reset sources and one external reset source, as explained in the paragraphs below. Figure 11 depicts the internal reset sources. RESET INTERNAL SOURCES AUTONOMOUS WATCHDOG AWD modules generates a reset because of a ...

Page 24

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS HIGH-VOLTAGE RESET ENABLE BIT (HVRE) This read / write bit enables resets on high-voltage conditions. Reset clears the HVRE bit. • High-voltage reset enabled • High-voltage reset disabled HIGH-TEMPERATURE ...

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Table 7. Analog Multiplexer Configuration Register SS3 SS2 SS1 SS0 Current Recopy HB1 Current Recopy HB2 Current Recopy HB3 Current Recopy HB4 0 1 ...

Page 26

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS POWER OUTPUT REGISTER (POUT) Register Name and Address: POUT - $0b Bit CSSEL1 CSSEL0 CSEN Read Write Reset Notes 13. ...

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HxEN HxF Figure 13. Hall-Effect Sensor Input Pin Connected to Two-Pin Hall-Effect Sensor HxEN HxF Figure 14. Hall-Effect Sensor Input Pin Connected to Local Switch Analog Integrated Circuit Device Data Freescale Semiconductor Two-Terminal Hall-Effect Sensor Hx Sense Circuitry GND V ...

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FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS HxEN Sense Circuitry HxF Figure 15. Hall-Effect Sensor Input Pin Connected to Three-Pin Hall-Effect Sensor INTERRUPTS The Hall-effect sensor input pins are interrupt capable. How and when an interrupt occurs is dependent on ...

Page 29

SPI: AWDCC = STOP No IRQ? Yes SPI: Reason for Wakeup Operate MREG = Main Voltage Regulator Figure 16. Hall-Effect Sensor Input Pin Cyclic Check Wake-Up Feature HALL-EFFECT SENSOR INPUT PIN CONTROL REGISTER (HACTL) Register Name ...

Page 30

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS • Hall-effect sensor input pin current above threshold • Hall-effect sensor input pin current below threshold HALF-BRIDGES Outputs HB1 : HB4 provide four low-resistive half-bridge output stages. The half-bridges ...

Page 31

Low-side MOSFET turned off for half-bridge output x HIGH-SIDE ON/OFF BITS (HBX_H ) These read / write bits turn on the high-side MOSFETs. Reset clears the HBx_H bits. • High-side MOSFET turned on for half-bridge ...

Page 32

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS OFFSET CHOPPING If bit OFC_EN in the H-Bridge Control Register (HBCTL) is set, HB1 and HB2 will continue to switch on the low-side MOSFETs with the rising edge of the FGEN signal and ...

Page 33

HALF-BRIDGE OVERTEMPERATURE PROTECTION The half-bridge outputs provide an overtemperature pre- warning with the HTF in the Interrupt Flag Register (IFR). In order to protect the outputs against overtemperature, the High-Temperature Reset must be enabled. If this value is reached, ...

Page 34

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS H-BRIDGES CURRENT SENSE AMPLIFICATION SELECT BIT (CSA ) This read / write bit selects the current sense amplification of the H-Bridges. Reset clears the CSA bit. • Current sense amplification set ...

Page 35

HIGH-SIDE OVERTEMPERATURE PROTECTION The high-side output provides an overtemperature pre- warning with the HTF in the Interrupt Flag Register. In order to protect the output against overtemperature, the High- Temperature Reset must be enabled. If this value is reached, the ...

Page 36

FUNCTIONAL DEVICE OPERATION LOGIC COMMANDS AND REGISTERS SYSTEM CONTROL REGISTER (SYSCTL) Register Name and Address: SYSCTL - $03 Bit Read PSON SRS1 SRS0 0 0 Write Reset POWER STAGES ...

Page 37

Logic [1] to HB_OCF. Reset clears the HB_OCF bit. Writing a Logic [0] to HB_OCF has no effect. • Overcurrent condition on H-Bridges has occurred • overcurrent condition on H-Bridges has ...

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FUNCTIONAL DEVICE OPERATION FACTORY TRIMMING AND CALIBRATION AUTONOMOUS WATCHDOG RATE BIT (AWDR ) This read / write bit selects the clock rate of the Autonomous Watchdog. Reset clears the AWDR bit. • Fast rate selected (10 ms) • ...

Page 39

DEVELOPMENT SUPPORT As the 908E425 has the MC68HC908EY16 MCU embedded typically all the development tools available for the MCU also apply for this device, however due to the fact of the additional analog die circuitry and the nominal +12 V ...

Page 40

TYPICAL APPLICATIONS PCB LEVEL PROGRAMMING If the IC is soldered onto the pcb board its typically not possible to separately power the MCU with +5V, the whole C1 1µF 1µ ...

Page 41

This paragraph gives some device specific recommendations to improve EMC/EMI performance. Further generic design recommendations can be e.g. found on the Freescale web site www.freescale.com. VSUP PINS (VSUP1:VSUP3) Its recommended to place a high-quality ceramic decoupling capacitor close to the ...

Page 42

TYPICAL APPLICATIONS Pins 21, 22 (NC) used for signal routing LIN L1 GND VBAT D1 . Component Recommended Value D1 Bulk Capacitor C1 100 nF, SMD Ceramic C2 100 nF, SMD Ceramic C3 4.7 µF, SMD Ceramic or Low ESR ...

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Important: For the most current revision of the package, visit 98ASA10712D. Analog Integrated Circuit Device Data Freescale Semiconductor PACKAGING PACKAGING DIMENSIONS www.freescale.com and perform a keyword search on DWB SUFFIX 54-PIN PLASTIC PACKAGE 98ASA10712D ISSUE 0 PACKAGING PACKAGING DIMENSIONS 908E425 ...

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PACKAGING PACKAGING DIMENSIONS 908E425 44 DWB SUFFIX 54-PIN PLASTIC PACKAGE 98ASA10712D ISSUE 0 Analog Integrated Circuit Device Data Freescale Semiconductor ...

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ADDITIONAL DOCUMENTATION THERMAL ADDENDUM (REV 2.0) Introduction This thermal addendum ia provided as a supplement to the 908E425 technical data sheet. The addendum provides thermal performance information that may be critical in the design and development of system applications. All ...

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ADDITIONAL DOCUMENTATION THERMAL ADDENDUM (REV 2.0) PTB7/AD7/TBCH1 1 54 PTB6/AD6/TBCH0 2 53 PTC4/OSC1 3 52 PTC3/OSC2 4 51 PTC2/MCLK 5 50 PTB5/AD5 6 49 PTB4/AD4 7 48 PTB3/AD3 8 47 IRQ 9 46 RST 10 45 PTB1/AD1 11 44 PTD0/TACH0/BEMF ...

Page 47

Figure 29. Device on Thermal Test Board R 100 10 1 0.1 1.00E-03 1.00E-02 Figure 30. Transient Thermal Resistance R Device on Thermal Test Board Area A = 600 (mm Analog ...

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REVISION HISTORY REVISION DATE DESCRIPTION OF CHANGES 8/2006 • Initial Release 1.0 908E425 48 REVISION HISTORY Analog Integrated Circuit Device Data Freescale Semiconductor ...

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How to Reach Us: Home Page: www.freescale.com E-mail: support@freescale.com USA/Europe or Locations Not Listed: Freescale Semiconductor Technical Information Center, CH370 1300 N. Alma School Road Chandler, Arizona 85224 +1-800-521-6274 or +1-480-768-2130 support@freescale.com Europe, Middle East, and Africa: Freescale Halbleiter Deutschland ...

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