|
|
PDF 33970 Data sheet ( Hoja de datos )
| Número de pieza | 33970 | |
| Descripción | Dual Gauge Driver Integrated Circuit | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de 33970 (archivo pdf) en la parte inferior de esta página. Total 36 Páginas | ||
|
No Preview Available !
www.DFaretaeSshceeatl4eUS.ceommiconductor
Advance Information
Document Number: MC33970
Rev. 3.0, 1/2007
Dual Gauge Driver Integrated
Circuit with Improved Damping
Algorithms
33970
This 33970 is a single-packaged, Serial Peripheral Interface (SPI)
controlled, dual step motor gauge driver integrated circuit (IC). This
monolithic IC consists of four dual output H-Bridge coil drivers and the
associated control logic. Each pair of H-Bridge drivers is used to
automatically control the speed, direction, and magnitude of current
through the two coils of a two-phase instrumentation step motor,
similar to an MMT-licensed AFIC 6405.
The 33970 is ideal for use in automotive instrumentation systems
requiring distributed and flexible step motor gauge driving. The
device also eases the transition to step motors from air core motors
by emulating the air core pointer movement with little additional
processor bandwidth utilization.
IMPROVED GAUGE DRIVER
INTEGRATED CIRCUIT
DW SUFFIX
EG SUFFIX (Pb-FREE)
98ASB42344B
24-PIN SOICW
Features
• MMT-Licensed Two-Phase Step Motor Compatible
• Minimal Processor Overhead Required
• Fully Integrated Pointer Movement and Position State Machine
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
with Air Core Movement Emulation
• 4096 Possible Steady State Pointer Positions
• 340° Maximum Pointer Sweep
• Fixed Maximum Acceleration and Deceleration of 4500°/s2
MC33970DW/R2
MCZ33970EG/R2
-40°C to 125°C
24 SOICW
• Maximum Pointer Velocity of 400°/s
• Analog Microstepping (12 Steps/Degree of Pointer Movement)
• Pointer Calibration and Return to Zero
• SPI-Controlled 16-Bit Word
• Calibratable Internal Clock
• Low Sleep Mode Current
• Backward Compatible with MC33991
• Improved Pointer Movement, Diagnostics, and Return to Zero (RTZ)
• Pb-Free Packaging Designated by Suffix Code EG
VPWR
5.0 V
VDD
Regulator
33970
VPWR
VDD
SIN0+
SIN0-
COS0+
COS0-
Motor 0
MCU
RTZ SIN1+
RST SIN1-
CS
SCLK
SI COS1+
SO
COS1-
GND
Motor 1
Figure 1. 33970 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., 2007. All rights reserved.
1 page  
ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 3. Static Electrical Characteristics
Characteristics noted under conditions 4.75 V < VDD < 5.25 V, -40°C < TA < 125°C, GND = 0 V unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Characteristic
Symbol Min Typ Max Unit
POWER INPUT
Supply Voltage Range
Fully Operational
Limited Operational (6), (7)
VPWR
V
6.5 – 26
4.0 – 26
VPWR Supply Current
Gauge 1 and 2 Outputs ON, No Output Loads
IPWR(ON)
–
mA
4.0 6.0
VPWR Supply Current (All Outputs Disabled)
Reset = Logic [0], VDD = 5.0 V
Reset = Logic [0], VDD = 0 V
Overvoltage Detection Level (8)
Undervoltage Detection Level (9)
Logic Supply Voltage Range (5.0 V Nominal Supply)
Under VDD Logic Reset
VDD Supply Current
Sleep: Reset Logic [0]
Outputs Enabled
POWER OUTPUTS
IPWSLP1
IPWRSLP2
–
–
µA
42 60
15 25
VPWROV
26
32
38
VPWRUV
5.0
5.6
6.2
VDD 4.5 5.0 5.5
VDDUV
–
– 4.5
V
V
V
V
IDD(OFF)
IDD(ON)
–
–
40 65 µA
1.0 1.8 mA
Microstep Output (Measured Across Coil Outputs)
SIN0,1, ± (COS0,1, ±) (refer to Table 1)
ROUT = 200 Ω
Steps 6, 18 (0, 12)
Steps 5, 7, 17, 19 (1, 11, 13, 23)
Steps 4, 8, 16, 20 (2, 10, 14, 22)
Steps 3, 9, 15, 21 (3, 9, 15, 21)
Steps 2, 10, 14, 22 (4, 8,16, 20)
Steps 1, 11, 13, 23 (5, 7, 17, 19)
Steps 0, 12 (6, 18)
Full Step Active Output (Measured Across Coil Outputs)
SIN0, 1, ± (COS0, 1, ±) (see Figure 9, page 23)
Steps 1, 3 (0, 2)
V
VST6
VST5
VST4
VST3
VST2
VST1
VST0
VFS
4.82
0.94 VST6
0.84 VST6
0.68 VST6
0.47 VST6
0.23 VST6
-0.1
5.3
0.97 VST6
0.87 VST6
0.71 VST6
0.50 VST6
0.26 VST6
0.0
6.0
1.0 VST6
0.96 VST6
0.8 VST6
0.57 VST6
0.31 VST6
0.1
4.9 5.3 6.0
V
Microstep, Full Step Output (Measured from Coil Low Side to Ground)
SIN0, 1, ± (COS0, 1, ±), IOUT = 30 mA
VLS
0.0 0.1 0.3
V
Notes
6. Outputs and logic remain active; however, the larger coil voltage levels may be clipped. The reduction in drive voltage may result in a
loss of position control.
7. The logic will reset at some level below the specified Limited Operational minimum.
8. Outputs will disable and must be re-enabled via the PECCR command.
9. Outputs remain active; however, the reduction in drive voltage may result in a loss of position control.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33970
5
5 Page 
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
H-BRIDGE OUTPUTS 1 (SIN1-, SIN1+, COS1-,
COS1+)
Each of this pins is the output pin of a half bridge, designed
to source or sink current. The H-Bridge pins linearly drive the
sine and cosine coils of two separate step motors to provide
four-quadrant operation.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33970
11
11 Page | ||
| Páginas | Total 36 Páginas | |
| PDF Descargar | [ Datasheet 33970.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| 33970 | Dual Gauge Driver Integrated Circuit | Freescale Semiconductor |
| 33972 | Multiple Switch Detection Interface | Freescale Semiconductor |
| 33972A | Multiple Switch Detection Interface | Freescale Semiconductor |
| 33975 | Multiple Switch Detection Interface | Freescale Semiconductor |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |