STA7132MC |Sanken Electric

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STA7132MC

Data Sheetdownload (PDF:3140.42KB)
Application Note

Description

2-phase stepper motor unipolar IC, self excitation PWM current control with fixed off time. 
It is enclosed in a compact ZIP package (STA), while having equivalent features as the conventional product (SLA7070MPRT series).
This allows reduction of external components and PCB size.
Lineup with various rated currents are available.

Application

・Copying machines
・Printers
・Manufacturing equipment

Features

・Motor supply voltages VM:
   35V(max), normal operating range: up to 33V
・Power supply voltages VBB:
   46V(max), normal operating range: 10V to 44V
・Maximum output current Io: 2A
・Supports clock-input-method micro-step drive
   (built-in sequencer)
・Built-in current sense resistor
・PWM current control with fixed OFF time
・Synchronous PWM chopping function prevents motor
   noise in Hold mode
・Built-in Standby function for reducing current con-
   sumption during standby
・Built-in protection circuitry against motor coil
   opens/shorts and thermal shutdown protection

Remarks

Package

Package Name:ZIP18(STA-18)

Package Diagram

Specifications

Excitation Method2 phase/4W1-2 phase
Supply VoltageVM:10V to 44V
VBB:up to 33
Output Current2.0A
on-Resistance0.18Ω
Input MethodClock in
OCPYES
TSDYES
STP (Simultaneous on Protection Feature)YES
Open Coil ProtectionYES

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Representative Circuit

Internal Block Diagram

Pin-Out Diagrams

Data Sheetdownload (PDF:3140.42KB)
Application Note
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