= A3987SLPTR-T – Power Management (Pmic) =
A3987SLPTR-T
Part Number: A3987SLPTR-T
Manufacturer
ALLEGRO
Package
24-TSSOP-EP
Date Code
25+
Category
Power Management (PMIC)
Product Details
Listed Availability
20,000 pcs
MOQ
4000
Lead Time
1-2 weeks
Product Status
Active
Availability, date code, MOQ and dispatch timing are subject to confirmation in our quotation. Please send your required quantity, delivery date and destination country.
Technical Specifications
Operating Temperature
-20°C ~ 150°C (TJ)
MSL
2 (1 Year)
RoHS Status
ROHS3 Compliant
ECCN
EAR99
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Description
Product Details
The A3987 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full, half, quarter, and sixteenth step modes, with output drive capability of 50 V and ±1.5 A. The A3987 includes a fixed off-time current regulator, which has the ability to operate in slow or mixed decay modes. The translator is the key to the easy implementation of the A3987. Simply inputting one pulse on the step input drives the motor to take one microstep. There are no phase sequence tables, high frequency control lines, or complex interfaces to program. The A3987 interface is an ideal fit for applications where a complex microprocessor is unavailable or over-burdened. The A3987 chopping control automatically selects the current decay mode (slow or mixed). When a STEP signal occurs, the translator determines if that step results in a higher or lower current in each of the motor phases. If the change is to a higher current, then the decay mode is set to slow decay. If the change is to a lower current, then the decay mode is set to 30.1% fast decay. This current decay control scheme results in reduced audible motor noise, increased step accuracy, and reduced power dissipation
Applications
Motor Drivers, Controllers
Downloads
Download DatasheetNeed Assistance?
enquiry@nexcir.com
Response Time
Within 24 hours
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