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參數(shù)資料
| 型號： | MC34923 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國)有限公司 |
| 英文描述： | Full-Bridge PWM Motor Driver(全橋PWM電機(jī)驅(qū)動器) |
| 中文描述： | 全橋PWM電動機(jī)驅(qū)動器（全橋脈寬調(diào)制電機(jī)驅(qū)動器） |
| 文件頁數(shù)： | 9/16頁 |
| 文件大?。?/td> | 508K |
| 代理商： | MC34923 |
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
34923
9
SYSTEM/APPLICATION INFORMATION
INTRODUCTION
The 34923 is designed for pulse-width modulated (PWM)
current control of DC motors. It is capable of continuous output
currents up to 2.0 A and operating voltages of up to 45 V.
Internal fixed off-time PWM current-control timing circuitry can
be programmed via a serial interface to operate in slow, fast,
and mixed current decay modes.
DIR and PWM/ENABLE input pins are provided for use in
controlling the speed and direction of a DC motor with externally
applied PWM-control signals. The PWM/ENABLE input can be
programmed via the serial port to PWM the bridge in fast or slow
current decay. Internal synchronous rectification control
circuitry is provided to reduce power dissipation during PWM
operation.
Internal circuit protection includes thermal shutdown with
hysteresis and crossover-current protection. Special power-up
sequencing is not required.
FUNCTIONAL PIN DESCRIPTION
V
B
This pin provides a node for charge storage at the boost
voltage. Internal circuitry will draw V
B
current from this node,
and the charge pump will deliver charge to this node.
CP1 and CP2
These pins are the connections to the switching capacitor in
the charge pump. These pins swing between ground and V
B
,
drawing charge from V
BB
and delivering it to the V
B
node.
DIR
This is the direction input for the H-bridge driver.
PWM/ENABLE
This pin is the enable input for the H-bridge driver. When
asserted this will bring the H-bridge out of tri-state mode so that
it can drive a load.
PWMMODE
This logic input controls the H-bridge output mode when the
PWM is deasserted. The H-bridge can have an active or
passive output state when the PWM input is deasserted.
OSC
This logic input is the clock for the on-board decay time
generator used only when in internal PWM mode. The decay
time can be slow or mixed fast and slow.
V
DD
This is the power supply input for the internal logic and
several other functions.
DATA
This logic input is the serial data used by the serial interface.
CLOCK
This logic input is the clock for the serial interface. Data is
shifted in synchronously with this clock.
STROBE
This logic input is used to latch data from the serial interface
into the internal logic.
V
REF
This input provides a reference voltage for the current limit
comparator threshold.
DCMA and DCMB
These are the high-current, high-voltage drive signals for the
motor.
V
BB
This is the motor drive voltage input. The H-bridge will deliver
this voltage to the motor.
SPAN
This logic-level input controls the current limit comparator
threshold that is generated from V
REF
.
V
REG
This output is a decoupling node for the internal bandgap
reference voltage generator.
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC34923DW | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MC34923EG | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 Full-Bridge PWM Motor Driver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MC34923EGR2 | 功能描述:馬達(dá)/運(yùn)動/點(diǎn)火控制器和驅(qū)動器 VERSION RoHS:否 制造商:STMicroelectronics 產(chǎn)品:Stepper Motor Controllers / Drivers 類型:2 Phase Stepper Motor Driver 工作電源電壓:8 V to 45 V 電源電流:0.5 mA 工作溫度:- 25 C to + 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:HTSSOP-28 封裝:Tube |
| MC34925 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL 4WAY 制造商:PRIVATE LABEL 功能描述:HEADER, VERTICAL, 4WAY, Product Range:MULTICOMP - MC34 Series, Contact Terminati 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONNECTOR, RCPT, 4POS, 4.2MM, Series:2266(5566)RA, Pitch Spacing:4.2mm, Contact Termination:Through Hole Vertical, No. of Contacts:4, No. of Rows:1, Connector Mounting:PCB, Gender:Receptacle, Contact Material:Brass , RoHS Compliant: Yes |
| MC34927 | 制造商:SPC Multicomp 功能描述:HEADER VERTICAL 5WAY 制造商:SPC Multicomp 功能描述:HEADER, VERTICAL, 5WAY 制造商:SPC Multicomp 功能描述:WIRE-BOARD CONNECTOR, RCPT, 5POS, 4.2MM; Series:2266(5566)RA; Pitch Spacing:4.2mm; Contact Termination:Through Hole Vertical; No. of Contacts:5; No. of Rows:1; Connector Mounting:PCB; Gender:Receptacle; Contact Material:Brass ;RoHS Compliant: Yes |
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