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參數(shù)資料
| 型號(hào)： | MPC17C724 |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | 0.4 A Dual H-Bridge Motor Driver IC |
| 中文描述： | 0.4甲雙H橋電機(jī)驅(qū)動(dòng)芯片 |
| 文件頁(yè)數(shù)： | 8/13頁(yè) |
| 文件大?。?/td> | 307K |
| 代理商： | MPC17C724 |
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Analog Integrated Circuit Device Data
Freescale Semiconductor
8
17C724
FUNCTIONAL DESCRIPTION
INTRODUCTION
FUNCTIONAL DESCRIPTION
INTRODUCTION
The 17C724 is a monolithic dual H-Bridge that is ideal in
portable electronic applications to control bipolar step motors
and brush DC motors such as those used in camera lens and
shutters. The 17C724 can operate efficiently with supply
voltages as low as 2.7 V to as high as 5.5 V, and provide
continuous motor drive currents of 0.4 A while handling peak
currents up to 0.8 A. It is easily interfaced to low-cost MCUs
via parallel 3.0 V- or 5.0 V-compatible logic. The device can
be pulse width modulated (PWM’ed) at up to 200 kHz.
The 17C724 can drive two motors simultaneously (see
Figure 6
), or it can drive one bipolar step motor as shown in
the simplified application diagram on
page 1.
Dual channel
parallel drive is also possible if higher current drive is desired
(0.8 A). Two-motor operation is accomplished by hooking
one motor between OUT1A and OUT1B, and the other motor
between OUT2A and OUT2B.
This IC has a built-in shoot-through current protection
circuit and undervoltage detector to avoid malfunction. It also
allows for power-conserving Sleep mode by the setting of the
PSAVE terminal (refer to
Table 5, Truth Table
, page
7
).
The device features four operating modes: Forward,
Reverse, Brake, and Tri-Stated (High Impedance).
FUNCTIONAL TERMINAL DESCRIPTION
LOGIC CIRCUIT POWER SUPPLY (VDD)
The VDD terminal carries the power source connection to
the control (logic) circuit, and its input range is between 2.7 V
to 5.5 V (3.0 V and 5.0 V compatible). V
DD
has an
undervoltage threshold. If the supply voltage to V
DD
drops
below 2.0 V (typical), then all the output of H-Bridges
(OUT1A, OUT1B, OUT2A, OUT2B) will become open (high
impedance = Z). When the supply voltage returns to a level
that is above the threshold voltage the H-Bridge outputs
automatically resume normal operation according to the
established condition of the input terminals.
LOGIC INPUT CONTROL (IN1A, IN1B, IN2A, AND
IN2B)
These logic input terminals control each H-Bridge output.
For example, IN1A logic HIGH = OUT1A HIGH; likewise,
IN1B logic HIGH = OUT1B HIGH. If both A and B inputs are
HIGH, then both A and B outputs are Z (refer to
Table 5, Truth
Table
, page
7
).
INPUT ENABLE CONTROL (PSAVE)
The PSAVE input controls the functioning of the power
output stages (the H-Bridges). When it is set logic LOW, the
output stages are enabled and the H-Bridges function
normally. When it is set logic HIGH, the output stages are
disabled and all the outputs are opened (high impedance). In
this mode, the built-in low-voltage detection circuit is
disabled.
H-BRIDGE OUTPUT (OUT1A, OUT1B, OUT2A, AND
OUT2B)
These terminals are the outputs of the power MOSFET
H-Bridges. OUT1 is from H-Bridge Channel 1, and OUT2
from H-Bridge Channel 2. These terminals will typically
connect to an external load (step motor or brush DC motors).
MOTOR DRIVER POWER SUPPLY (VM1 AND VM2)
VM1 and VM2 carries the main supply voltage and current
into the power sections (the H-Bridges) of the IC. Both of
these terminals are connected internally but they must be
connected together on the printed circuit board with as short
as possible traces. The input range is 2.7 V to 5.5 V.
POWER GROUND (PGND1 AND PGND2)
These two are the power ground terminals that connect to
the power ground of the H-Bridges. The power grounds are
for higher current handling capability from loads and they
must be connected together on the PCB.
LOGIC GROUND (LGND)
LGND is the logic ground terminal and its current handling
level is lower than the PGND.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC17C724EP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 2CH MOTOR DRIVERS 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 |
| MPC17C724EP | 制造商:Freescale Semiconductor 功能描述:MOTOR DRIVER IC |
| MPC17C724EP/R2 | 制造商:Freescale Semiconductor 功能描述:Dual H-Bridge Motor Driver 3V 16-Pin QFN T/R 制造商:Freescale 功能描述:Dual H-Bridge Motor Driver 3V 16-Pin QFN T/R |
| MPC17C724EPR2 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 2 CHANNEL 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 |
| MPC17C724R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:0.4 A Dual H-Bridge Motor Driver IC |
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