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PDF MCZ33976 Data sheet ( Hoja de datos )
| Número de pieza | MCZ33976 | |
| Descripción | Dual Gauge Driver | |
| Fabricantes | Freescale Semiconductor | |
| Logotipo |  |
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Freescale Semiconductor
Technical Data
Dual Gauge Driver with
Configurable Response Time
Document Number: MC33976
Rev. 3.0, 8/2006
33976
The 33976 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 or Switec MS-X15.xxx motor.
The 33976 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.
Features
•MMT-Licensed Two-Phase Step Motor Compatible
•Switec MS-X15.xxx Step Motor Compatible
•Minimal Processor Overhead Required
•Fully Integrated Pointer Movement and Position State Machine
with Channel-Independent Configurable Pointer Movement
•4096 Possible Steady State Pointer Positions
•340° Maximum Pointer Sweep
•Maximum Acceleration of 4500°/s2
•Maximum Pointer Velocity of 400°/s
•Analog Microstepping (12 Steps/Degree of Pointer Movement)
•Pointer Calibration and Return to Zero (RTZ)
•SPI-Controlled 16-Bit Word
•Calibratable Internal Clock
•Low Sleep Mode Current
•Pb-Free Packaging Designated by Suffix Code EG
CONFIGURABLE DUAL GAUGE DRIVER
DW SUFFIX
EG SUFFIX (PB-FREE)
98ASB42344B
24-LEAD SOICW
ORDERING INFORMATION
Device
Temperature
Range (TA)
Package
MC33976DW/R2
MCZ33976EG/R2
-40°C to 125°C
24 SOICW
VPWR
5.0 V
VDD
Regulator
MCU
33976
VPWR
VDD
SIN0+
SIN0-
COS0+
COS0-
RTZ SIN1+
RST SIN1-
CS
SCLK
SI
SO
COS1+
COS1-
GND
Motor 0
Motor 1
Figure 1. 33976 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., 2006. 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 ≤ TJ ≤ 150°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 (5), (6)
VPWR Supply Current
Gauge 1 and 2 Outputs ON, No Output Loads
VPWR Supply Current (All Outputs Disabled)
Reset = Logic [0], VDD = 5.0 V
Reset = Logic [0], VDD = 0 V
Overvoltage Detection Level (7)
Undervoltage Detection Level (8)
Logic Supply Voltage Range (5.0 V Nominal Supply)
Under VDD Logic Reset
VDD Supply Current
Sleep: Reset Logic [0]
Outputs Enabled
POWER OUTPUTS
Microstep Output (Measured Across Coil Outputs)
SIN0,1, ± (COS0,1, ±) (refer to Table 1)
ROUT = 200 Ω, PE6 = 0
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 8, page 25)
Steps 1, 3 (0, 2)
Microstep, Full Step Output
(Measured from Coil Low Side to Ground)
SIN0, 1, ± (COS0, 1, ±), IOUT = 30 mA
VPWR
IPWR(ON)
IPWSLP1
IPWRSLP2
VPWROV
VPWRUV
VDD
VDDUV
IDD(OFF)
IDD(ON)
6.5
4.0
–
–
–
26
5.0
4.5
–
–
–
–
–
4.0
42
15
32
5.6
5.0
–
40
1.0
V
26
26
mA
6.0
µA
60
25
38 V
6.2 V
5.5 V
4.5 V
65 µA
1.8 mA
V
VST6
VST5
VST4
VST3
VST2
VST1
VST0
VFS
VLS
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
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
0 0.1 0.3
V
V
Notes
5. 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.
6. The logic will reset at some level below the specified Limited Operational minimum.
7. Outputs will disable and must be re-enabled via the PECCR command.
8. Outputs remain active; however, the reduction in drive voltage may result in a loss of position control.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33976
5
5 Page 
FUNCTIONAL DESCRIPTION
FUNCTIONAL PIN DESCRIPTION
VOLTAGE (VDD)
This SPI and logic power supply input will work with 5.0 V
supplies.
RESET (RST)
If the master decides to reset the device or place it into a
sleep state, the RST pin is driven to a logic [0]. A logic [0] on
the RST pin will force all internal logic to the known default
state. This input has an internal active pull-up.
BATTERY VOLTAGE (VPWR)
Power supply.
H-BRIDGE OUTPUTS 1 (SIN1-, SIN1+, COS1-,
COS1+)
Each of these 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
33976
11
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| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet MCZ33976.PDF ] | |
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