DataSheet26.com

8906 PDF даташит

Спецификация 8906 изготовлена ​​​​«Allegro MicroSystems» и имеет функцию, называемую «BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING».

Детали детали

Номер произв 8906
Описание BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING
Производители Allegro MicroSystems
логотип Allegro MicroSystems логотип 

12 Pages
scroll

No Preview Available !

8906 Даташит, Описание, Даташиты
8906
BIDIRECTIONAL 3-PHASE BRUSHLESS DC MOTOR
CONTROLLER/DRIVER WITH BACK-EMF SENSING
LOAD
SUPPLY
1
V BB
COMMUTATION
DELAY
C D2 2
C WD 3
CST 4
24 C D1
23 DATA IN
22 CLOCK
21 CHIP SELECT
OUTA 5
GROUND 6
20 RESET
19 GROUND
GROUND 7
18 GROUND
OUTB 8
MUX
17 DATA OUT
OUTC 99
CENTERTAP 10
BRAKE 11
C RES 12
BOOST
CHARGE
PUMP
FLL 16 OSCILLATOR
VDD 15
LOGIC
SUPPLY
14 SECTOR
DATA
13 FILTER
Dwg. PP-040B
ABSOLUTE MAXIMUM RATINGS
at TA = +25°C
Load Supply Voltage, VBB . . . . . . . . . . 14 V
Output Current, IOUT . . . . . . . . . . . . ±1.25 A
Logic Supply Voltage, VDD . . . . . . . . . 6.0 V
Logic Input Voltage Range,
VIN . . . . . . . . . . . -0.3 V to VDD + 0.3 V
Package Power Dissipation, PD See Graph
Operating Temperature Range,
TA . . . . . . . . . . . . . . . . . . 0°C to +70°C
Junction Temperature, TJ . . . . . . . +150°C†
Storage Temperature Range,
TS . . . . . . . . . . . . . . . -55°C to +150°C
† Fault conditions that produce excessive junction
temperature will activate device thermal shutdown
circuitry. These conditions can be tolerated, but
should be avoided.
Output current rating may be restricted to a value
determined by system concerns and factors.
These include: system duty cycle and timing,
ambient temperature, and use of any heatsinking
and/or forced cooling. For reliable operation, the
specified maximum junction temperature should
not be exceeded.
The A8906CLB is a bidirectional three-phase brushless dc motor
controller/driver. The three half-bridge outputs are low on-resistance n-
channel DMOS devices capable of driving up to 1 A. The A8906CLB
provides complete, reliable, self-contained back-EMF sensing motor
startup and running algorithms. A programmable digital frequency-
locked loop speed control circuit together with the linear current control
circuitry provides precise motor speed regulation.
A serial port allows the user to program various features and
modes of operation, such as the speed control parameters, rotational
direction, startup current limit, sleep mode, diagnostic modes, and
others.
The A8906CLB is fabricated in Allegro’s BCD (Bipolar CMOS
DMOS) process, an advanced mixed-signal technology that combines
bipolar, analog and digital CMOS, and DMOS power devices. The
A8906CLB is provided in a 24-lead wide-body SOIC batwing package.
It provides for the smallest possible construction in surface-mount
applications.
PRELIMINARY INFORMATION
FEATURES
(Subject to change without notice)
s DMOS Outputs
March 1, 1999
s Low rDS(on)
s Startup Commutation Circuitry
s Back-EMF Commutation Circuitry
s Direction Control
s Serial Port Interface
s Frequency-Locked Loop Speed Control
s Sector Data Tachometer Signal Input
s Programmable Start-Up Current
s Diagnostics Mode
s Sleep Mode
s Linear Current Control
s Internal Current Sensing
s Dynamic Braking Through Serial Port
s Power-Down Dynamic Braking
s System Diagnostics Data Out
s Data Out Ported in Real Time
s Internal Thermal Shutdown Circuitry
Always order by complete part number, e.g., A8906CLB .









No Preview Available !

8906 Даташит, Описание, Даташиты
8906
BIDIRECTIONAL
3-PHASE BRUSHLESS DC
MOTOR CONTROLLER/DRIVER
OUT A
OUT B
OUT C
CENTERTAP 10
FUNCTIONAL BLOCK DIAGRAM
LOGIC
SUPPLY
15
VDD
C D1
24
C D2 C ST BRAKE
24
11
BRAKE
FCOM COMMUTATION
DELAY
START-UP
OSC.
BLANK
C RES
12
BOOST
CHARGE
PUMP
VBB
1
LOAD
SUPPLY
5 OUT A
8 OUT B
9 OUTC
C WD 3
SECTOR
DATA 14
OSC 16
FREQUENCY-
LOCKED LOOP
WATCHDOG
TIMER
CHARGE
PUMP
CURRENT
CONTROL
RS
DATA IN 23
SERIAL PORT
MUX
TSD
6-7 GROUND
21 22
20
17
13
FILTER
18-19 GROUND
Dwg. FP-034
2.5
RθJT = 6°C/W
2.0
1.5
R θJA = 55°C/W
1.0
0.5
0
25 50 75 100 125 150
TEMPERATURE in °C
Dwg. GP-019B
115 Northeast Cutoff, Box 15036
Worcester, Massachusetts 01615-0036 (508) 853-5000
Copyright © 1999 Allegro MicroSystems, Inc.









No Preview Available !

8906 Даташит, Описание, Даташиты
8906
BIDIRECTIONAL
3-PHASE BRUSHLESS DC
MOTOR CONTROLLER/DRIVER
ELECTRICAL CHARACTERISTICS at TA = +25°C, VDD = 5.0 V
Characteristic
Logic Supply Voltage
Logic Supply Current
Load Supply Voltage
Thermal Shutdown
Thermal Shutdown Hysteresis
Output Drivers
Output Leakage Current
Total Output ON Resistance
(Source + Sink + RS)
Output Sustaining Voltage
Clamp Diode Forward Voltage
Control Logic
Logic Input Voltage
Logic Input Current
DATA Output Voltage
CST Current
CST Threshold
Filter Current
Filter Threshold
CD Current
(CD1 or CD2)
CD Current Matching
CD Threshold
Symbol
VDD
IDD
VBB
TJ
TJ
IDSX
rDS(on)
VDS(sus)
VF
VIN(0)
VIN(1)
IIN(0)
IIN(1)
VOUT(0)
VOUT(1)
ICST
VCSTH
VCSTL
IFILTER
VFILTERTH
ICD
VCDTH
Test Conditions
Operating
Operating
Sleep Mode
Operating
VBB = 14 V, VOUT = 14 V
VBB = 14 V, VOUT = 0 V
IOUT = 600 mA
VBB = 14 V, IOUT = IOUT(MAX), L = 3 mH
IF = 1.0 A
SECTOR DATA, RESET, CLK,
CHIP SELECT, OSC
VIN = 0 V
VIN = 5.0 V
IOUT = 500 µA
IOUT = -500 µA
Charging
Discharging
Charging
Discharging
Leakage, VFILTER = 2.5 V
Charging
Discharging
ICD(DISCHRG)/ICD(CHRG)
Min.
4.5
4.0
Limits
Typ. Max.
5.0 5.5
7.5 10
250 500
14
165
20
Units
V
mA
µA
V
°C
°C
1.0 300 µA
-1.0 -300 µA
1.0 1.4
14 — —
1.25 1.5
V
V
-0.3
1.5
3.5 5.3
— — -0.5
— — 1.0
— — 1.5
3.5
-9.0 -10 -11
500
2.25 2.5 2.75
0.85 1.0 1.15
-9.0 -10 -11
9.0 10 11
— — 5.0
1.57 1.85 2.13
-18 -20 -22
32 40 48
1.8 2.0 2.2
2.25 2.5 2.75
V
V
µA
µA
V
V
µA
µA
V
V
µA
µA
nA
V
µA
µA
V
Continued next page










Скачать PDF:

[ 8906.PDF Даташит ]

Номер в каталогеОписаниеПроизводители
890-19-024-10-000PCB connectors 2.54 mm Single row / double row Solder tailPrecid-Dip Durtal SA
Precid-Dip Durtal SA
890-19-024-10-800PCB connectors 2.54 mm Single row / double row Solder tailPrecid-Dip Durtal SA
Precid-Dip Durtal SA
890-19-024-10-802PCB connectors 2.54 mm Single row / double row Solder tailPrecid-Dip Durtal SA
Precid-Dip Durtal SA
890-19-024-10-803PCB connectors 2.54 mm Single row / double row Solder tailPrecid-Dip Durtal SA
Precid-Dip Durtal SA

Номер в каталоге Описание Производители
TL431

100 мА, регулируемый прецизионный шунтирующий регулятор

Unisonic Technologies
Unisonic Technologies
IRF840

8 А, 500 В, N-канальный МОП-транзистор

Vishay
Vishay
LM317

Линейный стабилизатор напряжения, 1,5 А

STMicroelectronics
STMicroelectronics

DataSheet26.com    |    2020    |

  Контакты    |    Поиск