E-PBL3717A STMicroelectronics, E-PBL3717A Datasheet - Page 8

• Manufacturer Part Number: E-PBL3717A
• Description: IC DRIVER STEPPER MOTOR 16PWRDIP
• Manufacturer: STMicroelectronics
• Type: Stepper Motor Controllerr

Specifications of E-PBL3717A

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 1.2A
• Voltage - Load: 10 V ~ 46 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 36 V
• Supply Current: 16 mA
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1966-5; E-PBL3717A; PBL3717A

PBL3717A
Quarter Step Operation
It is preferable to realize the quarter step operation
at full power otherwise the steps will be of very ir-
regular size.
The extra quarter steps are added to the half steps
sequence by putting one coil on half current accord-
ing to the sequence.
Motor Selection
As the PBL3717A provides constant current drive,
with a switching operation, care must be taken to se-
lect stepper motors with low hysteresis losses to
prevent motor over heat.
Figure 6 :
Figure 8 :
8/11
AB
A
2
B
Source Saturation Voltage versus
Output Current (recircuit period)
Sink Saturation Voltage versus
Output Current
B
A
2
B
AB
A
B
2
A etc.
L -C Filter
To reduce EMI and chopping losses in the motor a
low pass L -C filter can be inserted across the out-
puts of the PBL3717A as shown on the following pic-
ture.
Figure 7 :
Figure 9 :
L
Source Saturation Voltage versus
Output Current (conduction period)
Comparator Threshold versus
Junction Temperature
10
1
LM
C
4 10
L
10