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參數(shù)資料
| 型號(hào)： | SA55 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | PULSE WIDTH MODULATION AMPLIFIER |
| 中文描述： | 脈寬調(diào)制放大器 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 40K |
| 代理商： | SA55 |
APEX MICROTECHNOLOGY CORPORATION
TELEPHONE (520) 690-8600 FAX (520) 888-3329 ORDERS (520) 690-8601 EMAIL prodlit@apexmicrotech.com
FEATURES
DELIVERS UP TO 5A CONTINUOUS OUTPUT
OPERATES AT SUPPLY VOLTAGES TO 55V
TTL AND CMOS COMPATIBLE INPUTS
NO “SHOOT-THROUGH” CURRENT
THERMAL WARNING FLAG OUTPUT AT 145
°
C
THERMAL SHUTDOWN (OUTPUTS OFF) AT 160
°
C
INTERNAL CLAMP DIODES
SHORTED LOAD PROTECTION
INTERNAL CHARGE PUMP WITH EXTERNAL BOOTSTRAP
CAPABILITY
APPLICATIONS
DC AND STEPPER MOTOR DRIVES
POSITION AND VELOCITY SERVOMECHANISMS
FACTORY AUTOMATION ROBOTS
NUMERICALLY CONTROLLED MACHINERY
COMPUTER PRINTERS AND PLOTTERS
PRELIMINARY
BLOCK DIAGRAM
HTTP://WWW.APEXMICROTECH.COM (800) 546-APEX (800) 546-2739
M I C R O T E C H N O L O G Y
PULSE WIDTH MODULATION AMPLIFIER
SA55
BRAKE
DIRECTION
PWM
ILIM
BRIDGE
DRIVER
THERMAL
FLAG
OUTPUT
BOOTSTRAP 1
BOOTSTRAP 2
GROUND
V
S
OUTPUT 1
CURRENT
SENSE OUT
OUTPUT 2
THERMAL
SENSING
UNDER
VOLTAGE
LOCKOUT
CHARGE
PUMP
DRIVE
CHARGE
PUMP
DRIVE
CURRENT
SENSING
DESCRIPTION
The SA55 is a 5A H-Bridge designed for motion control
applications. The device is built using a multi-technology
process which combines bipolar and CMOS control circuitry
with DMOS power devices on the same monolithic structure.
Ideal for driving DC and stepper motors; the SA55 accomodates
peak output currents up to 10A. An innovative circuit which
facilitates low-loss sensing of the output current has been
implemented.
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