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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...

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SeekIC No. : 004260253 Detail

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 ...

A3980 Data Sheet

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Part Number:
A3980
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



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




Application

􀂄 Automotive stepper motors
􀂄 Engine management
􀂄 Headlamp positioning




Pinout

Connection Diagram




Specifications

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




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






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