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參數(shù)資料
| 型號(hào)： | MPC17511A |
| 廠商： | 飛思卡爾半導(dǎo)體(中國(guó))有限公司 |
| 英文描述： | 1.0 A 6.8 V H-Bridge Motor Driver IC(1.0 A 6.8 V H橋電機(jī)驅(qū)動(dòng)器IC) |
| 中文描述： | 1.0甲6.8 V時(shí)H橋電機(jī)驅(qū)動(dòng)芯片（1.0 6.8可變區(qū)橋電機(jī)驅(qū)動(dòng)器集成電路） |
| 文件頁(yè)數(shù)： | 9/16頁(yè) |
| 文件大?。?/td> | 489K |
| 代理商： | MPC17511A |
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MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
17511A
9
SYSTEM/APPLICATION INFORMATION
INTRODUCTION
The 17511A is a monolithic H-Bridge power IC applicable to
small DC motors used in portable electronics. The 17511A can
operate efficiently with supply voltages as low as 2.0 V to as
high as 6.8 V, and it can provide continuos motor drive currents
of 1.0 A while handling peak currents up to 3.0 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 17511A has four operating
modes: Forward, Reverse, Brake, and Tri-Stated (High
Impedance).
Basic protection and operational features (direction, dynamic
braking, PWM control of speed and torque, main power supply
undervoltage detection and shutdown, logic power supply
undervoltage detection and shutdown), in addition to the 1.0 A
rms output current capability, make the 17511A a very
attractive, cost-effective solution for controlling a broad range of
small DC motors. In addition, a pair of 17511A devices can be
used to control bipolar step motors. The 17511A can also be
used to excite transformer primary windings with a switched
square wave to produce secondary winding AC currents.
As shown in
Figure 1, 17511A Simplified Internal Block
Diagram
, page 2, the 17511A is a monolithic H-Bridge with
built-in charge pump circuitry. For a DC motor to run, the input
conditions need to be set as follows: ENable input logic HIGH,
one INput logic LOW, and the other INput logic HIGH (to define
output polarity). The 17511A can execute dynamic braking by
setting both IN1 and IN2 logic HIGH, causing both low-side
MOSFETs in the output H-Bridge to turn ON. Dynamic braking
can also implemented by taking the ENable logic LOW. The
output of the H-Bridge can be set to an open-circuit high-
impedance (Z) condition by taking both IN1 and IN2 logic LOW.
(refer to
Table 1, Truth Table
, page 8).
The 17511A outputs are capable of providing a continuous
DC load current of up to 1.2 A. An internal charge pump
supports PWM frequencies to 200 kHz. The EN terminal also
controls the charge pump, turning it off when EN = LOW, thus
allowing the 17511A to be placed in a power-conserving sleep
mode.
FUNCTIONAL TERMINAL DESCRIPTION
OUT1 and OUT2
The OUT1 and OUT2 terminals provide the connection to the
internal power MOSFET H-Bridge of the IC. A typical load
connected between these terminals would be a small DC motor.
These outputs will connect to either VM or PGND, depending
on the states of the control inputs (refer to
Table 1, Truth Table
,
page 8).
PGND and LGND
The power and logic ground terminals (PGND and LGND)
should be connected together with a very low-impedance
connection.
C
RES
The C
RES
terminal provides the connection for the external
reservoir capacitor (output of the charge pump). Alternatively
this terminal can also be used as an input to supply gate-drive
voltage from an external source via a series current-limiting
resistor. The voltage at the C
RES
terminal will be approximately
three times the V
DD
voltage, as the internal charge pump
utilizes a voltage tripler circuit. The
VC
RES
voltage is used by
the IC to supply gate drive for the internal power MOSFET
H-Bridge.
VM
The VM terminals carry the main supply voltage and current
into the power sections of the IC. This supply then becomes
controlled and/or modulated by the IC as it delivers the power
to the load attached between OUT1 and OUT2. All VM
terminals must be connected together on the printed circuit
board with as short as possible traces offering as low
impedance as possible between terminals.
VM has an undervoltage threshold. If the supply voltage
drops below the undervoltage threshold, the output power
stage switches to a tri-state condition. When the supply voltage
returns to a level that is above the threshold, the power stage
automatically resumes normal operation according to the
established condition of the input terminals.
IN1, IN2, and EN
The IN1, IN2, and EN terminals are input control terminals
used to control the outputs. These terminals are 5.0 V CMOS-
compatible inputs with hysteresis. The IN1, IN2, and EN work
together to control OUT1 and OUT2 (refer to
Table 1, Truth
Table
).
GIN
The
GIN
input controls the GOUT terminal. When
GIN
is set
logic LOW, GOUT supplies a level-shifted high-side gate drive
signal to an external MOSFET. When
GIN
is set logic HIGH,
GOUT is set to GND potential.
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 |
|---|---|
| MPC17511AEL | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:1.0 A 6.8 V H-Bridge Motor Driver IC |
| MPC17511AEP | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)器 1CH MOTOR DRIVER PB FREE 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 |
| MPC17511AEP | 制造商:Freescale Semiconductor 功能描述:IC MOTOR DRIVER H BRIDGE 24QFN 制造商:Freescale Semiconductor 功能描述:IC, MOTOR DRIVER, H BRIDGE, 24QFN |
| MPC17511AEP/R2 | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:1.0 A 6.8 V H-Bridge Motor Driver IC |
| MPC17511AEPR2 | 功能描述:馬達(dá)/運(yùn)動(dòng)/點(diǎn)火控制器和驅(qū)動(dòng)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 |
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