A397SB, A397TSLP, A3980 Selling Leads, Datasheet
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A397SB, A397TSLP, A3980
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Info of A397SB
Info of A397TSLP
Info of A3980
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About A390
PDF/DataSheet Download
Datasheet: A390
File Size: 440324 KB
Manufacturer: POWEREX [Powerex Power Semiconductors]
Download : Click here to Download
About A390
PDF/DataSheet Download
Datasheet: A390
File Size: 440324 KB
Manufacturer: POWEREX [Powerex Power Semiconductors]
Download : Click here to Download
About A3980
PDF/DataSheet Download
Datasheet: A3980
File Size: 526479 KB
Manufacturer: ALLEGRO [Allegro MicroSystems]
Download : Click here to Download
A3980 General Description
The A3980 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, eighth-, and sixteenth-step modes, at up to 35 V and ±1 A. The A3980 includes a fi xed off-time current regulator which has the ability to operate in slow, fast, or mixed decay modes. This results in reduced audible motor noise, increased step accuracy, and reduced power dissipation.
The translator is the key to the easy implementation of the A3980. Simply inputting one pulse on the step input drives the motor one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. The A3980 interface is an ideal fi t for applications where a complex P is unavailable or overburdened
A3980 Maximum Ratings
Load Supply Voltage, 500 ms,VBB ...........................50 V
Logic Supply Voltage, VDD.......................................7.0 V
Logic Input Voltage
VIN ...............................................0.3 V to VDD + 0.3 V
(tW < 30 ns) ...................................1.0 V to VDD + 1 V
Sense Voltage, VSENSE ..........................................0.5 V
Reference Voltage, VREF ..........................0 V to VDD
Package Power Dissipation (TA = +25ºC), PD
"High-K" PCB1 .............................................RJA28ºC/W
Typical PCB2.................................................RJA38ºC/W
Operating Temperature Range
Junction Temperature, TJ .................40°C to +150°C
Storage Temperature, TS ................55°C to +150°C
Logic Supply Voltage, VDD.......................................7.0 V
Logic Input Voltage
VIN ...............................................0.3 V to VDD + 0.3 V
(tW < 30 ns) ...................................1.0 V to VDD + 1 V
Sense Voltage, VSENSE ..........................................0.5 V
Reference Voltage, VREF ..........................0 V to VDD
Package Power Dissipation (TA = +25ºC), PD
"High-K" PCB1 .............................................RJA28ºC/W
Typical PCB2.................................................RJA38ºC/W
Operating Temperature Range
Junction Temperature, TJ .................40°C to +150°C
Storage Temperature, TS ................55°C to +150°C
A3980 Features
Typical application up to ±1 A, 35 V output rating
Low RDS(ON) outputs, 0.67 source, 0.54 sink typical
Automatic current decay mode detection/selection
3.0 V to 5.5 V logic supply voltage range
Mixed, fast, and slow current decay modes
Synchronous rectifi cation for low power dissipation
Internal OVLO, UVLO, and thermal shutdown circuitry
Crossover current protection
Short to supply/ground and short/open load diagnostics
Low RDS(ON) outputs, 0.67 source, 0.54 sink typical
Automatic current decay mode detection/selection
3.0 V to 5.5 V logic supply voltage range
Mixed, fast, and slow current decay modes
Synchronous rectifi cation for low power dissipation
Internal OVLO, UVLO, and thermal shutdown circuitry
Crossover current protection
Short to supply/ground and short/open load diagnostics
A3980 Typical Application
Automotive stepper motors
Engine management
Headlamp positioning
Engine management
Headlamp positioning
A3980 Connection Diagram
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