E-TEA3718SP STMicroelectronics, E-TEA3718SP Datasheet - Page 19

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E-TEA3718SP

Manufacturer Part Number
E-TEA3718SP
Description
IC STEPPER MOTOR DRV MULTIWATT15
Manufacturer
STMicroelectronics
Type
Stepper Motor Controllerr
Datasheet

Specifications of E-TEA3718SP

Applications
Stepper Motor Driver
Number Of Outputs
1
Current - Output
±1.5A
Voltage - Load
10 V ~ 45 V
Voltage - Supply
4.75 V ~ 5.25 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
Multiwatt-15 (Vertical, Bent and Staggered Leads)
Operating Current
25mA
Operating Temperature Classification
Commercial
Package Type
MULTIWATT V
Operating Supply Voltage (min)
10V
Operating Supply Voltage (max)
45V
Product
Stepper Motor Controllers / Drivers
Operating Supply Voltage
10 V to 45 V
Supply Current
25 mA
Mounting Style
Through Hole
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
6
6.1
6.2
6.3
Application notes
Motor selection
Some stepper motors are not designed for continuous operation at maximum current. As the
circuit drives a constant current through the motor, its temperature might increase
excessively both at low and high speed operation.
Also, some stepper motors have such high core losses that they are not suited for switch
mode current regulation.
Unused inputs
Unused inputs should be connected to proper voltage levels in order to get the highest noise
immunity.
Interference
As the circuit operates with switch mode current regulation, interference generation
problems might arise in some applications. A good measure might then be to decouple the
circuit with a 15 nF ceramic capacitor, located near the package between power
line V
short as possible. This applies also to the lead between the sensing resistor R
See
Section 4: Functional blocks
S
and ground. The ground lead between R
.
S
, C
C
and circuit GND should be kept as
Application notes
S
and point S.
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