SA56 Apex Microtechnology, SA56 Datasheet

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SA56

Manufacturer Part Number
SA56
Description
PULSE WIDTH MODULATION AMPLIFIER
Manufacturer
Apex Microtechnology
Datasheet

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www.DataSheet4U.com
M I C R O T E C H N O L O G Y
FEATURES
• DELIVERS UP TO 5A CONTINUOUS OUTPUT
• OPERATES AT SUPPLY VOLTAGES UP TO 60V
• NO “SHOOT-THROUGH” CURRENT
• THERMAL SHUTDOWN (OUTPUTS OFF) AT 160°C
• SHORTED LOAD PROTECTION (to V
• NO BOOTSTRAP CAPACITORS REQUIRED
• PROGRAMMABLE ONBOARD PWM
APPLICATIONS
• DC BRUSH-TYPE MOTOR DRIVES
• POSITION AND VELOCITY SERVOMECHANISMS
• FACTORY AUTOMATION ROBOTS
• NUMERICALLY CONTROLLED MACHINERY
• COMPUTER PRINTERS AND PLOTTERS
FIGURE 1. BLOCK DIAGRAM
APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com
LOAD)
S
or P
GND
or SHORTED
SA56
DESCRIPTION
control applications. The device is built using a multi-technology
process that combines bipolar and CMOS control circuitry with
DMOS power devices in a single monolithic structure. Ideal
for driving DC and stepper motors, the SA56 accommodates
peak output currents up to 10 amperes. An innovative circuit
that facilitates low-loss sensing of the output current has been
implemented. An on-board PWM oscillator and comparator
are used to convert an analog signal into PWM direction of
rotation and magnitude for motor control applications. TTL or
CMOS digital inputs allow direct external control in 2-quadrant
or 4-quadrant modes.
The SA56 is a 5-ampere PWM Amplifier designed for motion
PACkAGE STYLE EX
23 PIN SIP
1

Related parts for SA56

SA56 Summary of contents

Page 1

... SHORTED S GND DESCRIPTION The SA56 is a 5-ampere PWM Amplifier designed for motion control applications. The device is built using a multi-technology process that combines bipolar and CMOS control circuitry with DMOS power devices in a single monolithic structure. Ideal for driving DC and stepper motors, the SA56 accommodates peak output currents amperes ...

Page 2

... SA56 www.DataSheet4U.com ABSOLUTE MAXIMUM RATINGS SPECIFICATIONS PARAMETER V S VDD SWITCH ON RESISTANCE, R (ON) DS N-Channel SWITCH ON RESISTANCE, R (ON) DS P-Channel CLAMP DIODE FORWARD DROP, V CLAMP LOGIC LOW INPUT VOLTAGE LOGIC LOW INPUT CURRENT LOGIC HIGH INPUT VOLTAGE LOGIC HIGH INPUT CURRENT, I ...

Page 3

... TYPICAL PERFORMANCE GRAPHS www.DataSheet4U.com APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com SA56 3 ...

Page 4

... SA56 www.DataSheet4U.com 0 125°C 0.45 DS 0.4 0.35 0.3 0. -25° 0° 50°C 0. 85°C 0 APEX MICROTECHNOLOGY CORPORATION • 5980 NORTH SHANNON ROAD • TUCSON, ARIZONA 85741 • USA • APPLICATIONS HOTLINE: 1 (800) 546-2739 4 °C ° ...

Page 5

... OPERATING CONSIDERATIONS www.DataSheet4U.com GENERAL Please read "SA56 Design Ideas" that covers the various SA56 applications in considerable detail. Also see Application Note 1 "General Operating Considerations" which covers stabil- ity, power supplies, heat sinking, mounting, and specification interpretation. Visit www.apexmicrotech.com for design tools ...

Page 6

... GND DD 2-QUADRANT - DIGITAL MODE Two-quadrant operation of the FETs is realized by driving to PWM pin 17 of the SA56 with a digital PWM signal supplied PWM by a microcontroller or DSP, as depicted in Figure 3. When using a digital modulation signal, connect the C SIG to disable the internal oscillator and its companion GND ramp generator ...

Page 7

... Thermal and short-circuit protection are included in the SA56 to prevent damage in the event that faults occur as described below: APEX MICROTECHNOLOGY CORPORATION • TELEPHONE (520) 690-8600 • FAX (520) 888-3329 • ORDERS (520) 690-8601 • EMAIL prodlit@apexmicrotech.com This data sheet has been carefully checked and is believed to be reliable, however, no responsibility is assumed for possible inaccuracies or omissions. All specifications are subject to change without notice. Short-circuit protection – ...

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