Datenblatt-Suchmaschine für elektronische Bauteile
  German  ▼
ALLDATASHEETDE.COM

X  

MC34923DW Datenblatt(PDF) 10 Page - Motorola, Inc

Teilenummer MC34923DW
Bauteilbeschribung  Full-Bridge PWM Motor Driver
Download  16 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Hersteller  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

MC34923DW Datenblatt(HTML) 10 Page - Motorola, Inc

Back Button MC34923DW Datasheet HTML 6Page - Motorola, Inc MC34923DW Datasheet HTML 7Page - Motorola, Inc MC34923DW Datasheet HTML 8Page - Motorola, Inc MC34923DW Datasheet HTML 9Page - Motorola, Inc MC34923DW Datasheet HTML 10Page - Motorola, Inc MC34923DW Datasheet HTML 11Page - Motorola, Inc MC34923DW Datasheet HTML 12Page - Motorola, Inc MC34923DW Datasheet HTML 13Page - Motorola, Inc MC34923DW Datasheet HTML 14Page - Motorola, Inc Next Button
Zoom Inzoom in Zoom Outzoom out
 10 / 16 page
background image
34923
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
10
FUNCTIONAL DESCRIPTION
Serial Interface
The 34923 is controlled via a 3-wire (clock, data, strobe)
serial port. The programmable functions allow maximum
flexibility in configuring the PWM to the motor drive
requirements. The serial data is clocked in starting with bit D19.
D0–D1, Blank Time
The current-sense comparator is blanked when any output
driver is switched on in accordance with the table below. fosc is
the oscillator input frequency.
D2–D6, Fixed Off-Time
A five-bit word sets the fixed off-time for internal PWM
current control. The off time is defined as follows:
toff = (8[1 + N] /fosc) - 1/fosc
where N = 0 to 31.
For example, with an oscillator frequency of 4.0 MHz, the off-
time is adjusted from 1.75
µs to 63.75 µs in increments of
2.0
µs.
D7–D10, Fast Decay Time
A four-bit word sets the fast decay portion of the fixed off-time
for the internal PWM control circuitry. This will only have impact
if the mixed current decay mode is selected (via bit D17 and the
PWMMODE input pin). For tfd > toff, the device will effectively
operate in the fast decay mode. The fast decay portion is
defined as follows:
tfd = (8[1 + N]/fosc) - 1/fosc
where N = 0 to 15.
For example, with an oscillator frequency of 4.0 MHz, the fast
decay time is adjusted from 1.75
µs to 31.75 µs in increments
of 2.0
µs.
D11–D12, Synchronous Rectification Control
The active mode prevents reversal of load current by turning
off synchronous rectification when a zero current level is
detected. The passive mode will allow reversal of current but
will turn off the synchronous rectifier circuit if the load current
inversion ramps up to the current limit set by VREF/RS.
D13, External PWM Decay Mode
Bit D13 determines the current decay mode when using
PWM/ENABLE chopping for external PWM current control.
Bit
Function
D0
Blank Time LSB
D1
Blank Time MSB
D2
Fixed Off-Time LSB
D3
Fixed Off-Time Bit 1
D4
Fixed Off-Time Bit 2
D5
Fixed Off-Time Bit 3
D6
Fixed Off-Time MSB
D7
Fast Decay Time LSB
D8
Fast Decay Time Bit 1
D9
Fast Decay Time Bit 2
D10
Fast Decay Time MSB
D11
Synchronous Rectification Mode
D12
Synchronous Rectification Enable
D13
External PWM Decay Mode
D14
Enable Logic
D15
Direction Logic
D16
Divisor SPAN Select
D17
Internal PWM Mode
D18
Test Mode
D19
Sleep Mode
D0
D1
Blank Time
0
0
4/fosc
1
0
6/fosc
0
1
12/fosc
1
1
24/fosc
D11
D12
Synchronous
Rect. Control
0
0
Disabled
0
1
Active
1
0
Disabled
1
1
Passive
D13
Current
Decay Mode
0
Fast
1
Slow
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com


Ähnliche Teilenummer - MC34923DW

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Freescale Semiconductor...
MC34923DW FREESCALE-MC34923DW Datasheet
378Kb / 16P
   Full-Bridge PWM Motor Driver
MC34923DWR2 FREESCALE-MC34923DWR2 Datasheet
378Kb / 16P
   Full-Bridge PWM Motor Driver
More results

Ähnliche Beschreibung - MC34923DW

HerstellerTeilenummerDatenblattBauteilbeschribung
logo
Allegro MicroSystems
3951 ALLEGRO-3951 Datasheet
201Kb / 12P
   FULL-BRIDGE PWM MOTOR DRIVER
3952 ALLEGRO-3952 Datasheet
195Kb / 16P
   FULL-BRIDGE PWM MOTOR DRIVER
3953 ALLEGRO-3953 Datasheet
230Kb / 14P
   FULL-BRIDGE PWM MOTOR DRIVER
A4973 ALLEGRO-A4973_16 Datasheet
286Kb / 11P
   Full-Bridge PWM Motor Driver
logo
Freescale Semiconductor...
34923 FREESCALE-34923 Datasheet
378Kb / 16P
   Full-Bridge PWM Motor Driver
logo
Allegro MicroSystems
A4973SB-T ALLEGRO-A4973SB-T Datasheet
287Kb / 11P
   Full-Bridge PWM Motor Driver
A4973SLBTR-T ALLEGRO-A4973SLBTR-T Datasheet
286Kb / 11P
   Full-Bridge PWM Motor Driver
A3953 ALLEGRO-A3953 Datasheet
488Kb / 12P
   Full-Bridge PWM Motor Driver
3953 ALLEGRO-3953_05 Datasheet
317Kb / 15P
   FULL-BRIDGE PWM MOTOR DRIVER
logo
Sanken electric
SI-5300 SANKEN-SI-5300 Datasheet
638Kb / 12P
   Full-bridge PWM Motor Driver
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16


Datenblatt Download

Go To PDF Page


Link URL




Privatsphäre und Datenschutz
ALLDATASHEETDE.COM
War ALLDATASHEET hilfreich?  [ DONATE ] 

Über Alldatasheet   |   Werbung   |   Kontakt   |   Privatsphäre und Datenschutz   |   Linktausch   |   Hersteller
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com