Pacific Scientific


Pacific Scientific

5645 Image 1


The 5645 is a hybrid stepper motor driver in the 5000 series by Pacific Scientific. This driver module is specifically engineered for standard and enhanced high-performance servo motors within the same series when their motor winding's power rating matches the module output current, which varies from 5.0 up to 8.0 Amp RMS (with a peak of 7.1 to 11.3 Amps). The driver can tolerate an input of 115 V AC within a range of ± 15% and a maximum input current of 13 A RMS. The circuitry allows the device to produce a two-phase, chopper-rectified current at a standard Bus voltage of 160-volt DC from an input voltage of 115 volts AC. The 5645 module also features an advanced indexer, which combines the functions of the 5630 model, offering BASIC motion control indexing. The device weighs approximately 4 kilograms and operates comfortably between temperatures of 0- 50 degrees Celsius at full current rating, and 0-60 degrees Celsius when idle current compression is enabled with a current setting of 5.0-6.0 Amps.

5645 by Pacific Scientific is a Stepper Motor Drive that is ready to run intelligent motion systems to economical board level drivers. Featuring high performance magnetic and electronic innovations, this 5645 features a Functionality & Drive Configuration of Indexer with PacSci Stepper Basic programming language, Integral power supply and a Power Level of 11.3 A peak, 8 A rms, 160 Vdc with integral power supply.

Manufacturer Pacific Scientific
Product Type Hybrid Motor Driver
Model 5645
Compatible With 5000 series of servo-stepper motors
Power Range -5.0 up to 8.0 Amp RMS (7.1 up to 11.3 Amps peak)
Input Voltage 115 V AC (within ± 15% range)
Max Input Current 13 A RMS
Programmable Current Ratings 8.0 Amp RMS, 7.5 Amp RMS, 6.0 Amp RMS, 5.0 Amp RMS
Weight 9 pounds (4 kilograms)

Distribution Cache Shipping Info and Options

Shipping Carriers: Here at Distribution Cache we ship using UPS, FedEx, DHL, or TNT. In most cases we get very competitive rates based on our volume and will be happy quote shipping cost to your location upon request. We also know that many customers would prefer to ship collect on their own account numbers and welcome this option.

Shipping Blind: We recognize that many of our customers intend to re-sell the product to their end user. We respect our customer’s relationships with their clients and offer blind shipping as an option to ensure that the package arrives in the most clandestine way possible.

Shipping Process: We take pride in the way we package your order and spare no cost in making sure that it arrives safely at your facility. In the case of new parts, we are always sure to package the factory box inside another larger box for safe transit. For reconditioned parts we often use Distribution Cache customized packaging that is specially made to protect the products from the bumps and falls present during shipment.


Shipping Options:

Next Day Air Early AM - This service is the fastest overnight delivery option available. For most locations the package will be guaranteed by 8:30AM.

Next Day Air – This service guarantees delivery by 10:30AM and is the most frequently used option for overnight shipments.

Next Day Air Saver – This cost saving overnight alternative guarantees delivery by 3PM the next day.

2nd Day Air – For domestic shipments that would take 3-5 days if shipped via Ground, sometimes having the order in 2 days is a great way to go

Ground – Ground is the most inexpensive shipping option provided. Please ask if we are doing a “free domestic ground” shipping promotion on your order. We often provide free ground shipping on larger orders.


Emergency Courier – At times we can help work with a courier service to get the part to your facility during downtimes scenarios. We prefer that the customer sets up the courier but we can be there to make sure the product is handed off to the driver. Please give us a call to see if this is an option on your order.

Please Note: Products listed as “ships today” can ship same-day if an order is placed before 4PM. For larger drives and motors we ask that notification for same-day shipments be provided by 2PM at the latest. For any products listed as “ships in 3-5 days”, please give us a call to see if this can be expedited.