Download SB0800 Octal Valves and Pump Controller System on Chip

Analog Solutions—Robust, Reliable Performance
SB0800
Octal Valves and Pump Controller System on Chip
Overview
Target Applications
The Octal Valves and Pump Controller System on Chip (VAPS) consists of four low-side drivers
• Industrial Controller
regulated and four low-side drivers digitals, plus a high side to control a DC motor. This simple
solution is suitable for loads with high inrush current and allows driving to high frequency (up to
•Force
5 kHz). To use the chip, a simple serial peripheral interface (SPI) communication is needed. With
• Spot Welding
this communication, users can perform control and diagnostic functions directly on the chip.
• Fluid Coating
The device is designed for harsh environments, and it includes self-recovery features thanks to
• Flight Simulator
the embedded supervision that allows extensive safety monitoring. Furthermore, a predriver-safe
• Temperature Control
MOSFET increases safety by turning off all valves in the event of any issue. This system on chip
is the perfect solution to drive hydraulic or pneumatic valves without “smart electronics.”
• Laser Cutting
SB0800
Simplified Diagram
implified
Diagram
• Bottle Moulding
• Filling Pressure
SB0800
VBAT
External 5.0
Regulator
DOSV
VINT_A
VINT_D
VCC5
VCC5
P53_CFG
VBAT
VPWR
VBAT
RSTB
SO
SI
CSB
SCLK
CP
HD_D
HD_G
HD_S
HS
VBAT
PD_D
PD_G
PD_S
GND_D
NC
Solenoid
Coil
LSD5
LSD6
LSD7
LSD8
4
Example of 5V Application
*This image represents a typical configuration
MCU
3
GND_A
LSD1
LSD2
LSD3
LSD4
GND_P0,1...4
Solenoid
Coil
• Brake Pressure
Freescale: A Leader in
Analog Solutions
Typical Use Case
Up to 30V
DC
Expanding on more than 30 years of
innovation, Freescale is a leading provider
of high-performance products that use
10µ
5V Voltage
Regulator
220n
Vcc3.3
Charge
Pump
CP
3.3V Voltage
Regulator
Faults
Management
&
State
Machine
Vcc5
SMARTMOS technology combining digital,
power and standard analog functions.
DOSV
Freescale supplies analog and power
MCU
management ICs that are advancing the
SI, SO, SLK, CSB
16bit SPI
4
Logic
RSTB
Solenoid
Low-Side
Drivers
with
protection
and
diagnostic
Low-Side
Drivers
with
protection
and
diagnostic
protection and diagnostic
valve
Up to 5A
Valve Low-Side Drivers
with protection
Solenoid and
diagnostic
Solenoid
Low-Side
Drivers with
Up to 2.25A
Rds(on) 300mΩ @ 150°C
Up to 2.25A
interface with real world signals to control
Half Bridge Pre-driver
up to 500Hz
with protection and
diagnostic
and drive for complete embedded systems.
Electronic domain
(Unit control)
10bit
Analog to
Digital
Converter
with Mux
ADIN1
ADIN2
ADIN3
Title
Valve Low-Side Drivers
with protection
Solenoid and
diagnostic
Solenoid
Low-Side
Drivers with
Solenoid
Low-Side
Drivers
with
protection
and
diagnostic
Current
Regulation
Drivers
with
diagnostic
upprotection
to Low-Side
2.25A and
protection and diagnostic
networking markets. Analog solutions
Freescale
Document
Number
Safe MOSFET Pre-driver
with protection and
diagnostic
Rds(on) 225mΩ @ 150°C
automotive, consumer, industrial and
Documentation
Hydraulic domain
Vpwr
Description
High-Side Driver
with protection
and diagnostic
Vpwr
Up to 30V
DC
tank
30A
M
pump
On/Off
Rds(on) 1.0Ω @ 150°C
Low-Side Driver
with protection and diagnostic
On/Off
MC34SB0800
Octal Valve and
Pump Controller
System on Chip
Data Sheet
SG1002
Analog Product
Selector Guide
Selector Guide
SG200
Industrial
Product
Selector Guide
Selector Guide
MC34SB0800
Rds(on) 14Ω @ 150°C
System on Chip.
One single analog device to manage the overall
hydraulic network (valves + motor pump)
*This image represents a typical configuration
SB0800 Differentiation
Features
Benefits
Industry/Voltage
Supports the industrial industry with voltage ranges from
6 V-32 V. Precision guaranteed up to 20 V.
Low Rdson for valve drivers in thermally
enhanced package
Best thermal efficiency
Up to 8 LSD integrated into a LQFP14X14
64-pin package
Best PCB space saving
Switch-off energy drained by digital valves driver
No Freewheeling diode needed
Built-in close loop control for regulated valves
Only targetted value needs to be sent by SPI. Error is
reported when regulated current cannot be reached.
Accurate current regulated valves driver
+/- 6.0% precision reachable without external discrete
components and without calibration
Safe MosFet turned off all the valves in case
of issues
No external circuitry needed to achieve full safe
valve operation
All actuators controllable through SPI
MCU does not need to generate PWM signals at high
frequency. MCU only sent targeted duty cycle through SPI.
10 bits analog-to-digital converter
ADC can monitor external or internal signals to enhance the
control unit safety level.
Digital Diagnostics by SPI
Full control for system
Integrated DC pump motor predriver controller
Up to 500 Hz
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Freescale, the Freescale logo and QorlQ are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off.
SMARTMOS is a trademark of Freescale Semiconductor, Inc. All other product or service names are the property of their
respective owners. © 2014 Freescale Semiconductor, Inc.
Document Number: SB0800FS REV 2