L6228QTR STMicroelectronics, L6228QTR Datasheet - Page 23

• Manufacturer Part Number: L6228QTR
• Description: IC DVR BIPO STEP MOTOR 32-VFQFPN
• Manufacturer: STMicroelectronics
• Type: Bipolar Stepper Motor Driverr

Specifications of L6228QTR

• Applications: Stepper Motor Driver
• Number Of Outputs: 1
• Current - Output: 1.4A
• Voltage - Supply: 8 V ~ 52 V
• Operating Temperature: -25°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN, 32-VFQFPN
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 48 V
• For Use With: 497-6818 - EVAL BOARD FOR L6228Q
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Load: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-6864-2; L6228QTR

L6228Q
5
Application information
A typical bipolar stepper motor driver application using L6228Q is shown in
Typical component values for the application are shown in
capacitor in the range of 100 to 200 nF should be placed between the power pins (VS
VS
supply and reduce high frequency transients generated by the switching. The capacitor
connected from the EN input to ground sets the shut down time when an over current is
detected (see overcurrent protection). The two current sensing inputs (SENSE
SENSE
possible in the layout. The sense resistors should be non-inductive resistors to minimize the
dI/dt transients across the resistor. To increase noise immunity, unused logic pins (except
EN) are best connected to 5 V (high logic level) or GND (low logic level) (see pin
description). It is recommended to keep power ground and signal ground separated on PCB.
Table 7.
B
) and ground near the L6228Q to improve the high frequency filtering on the power
B
) should be connected to the sensing resistors with a trace length as short as
Component values for typical application
Component
R
R
C
SENSEA
SENSEB
C
C
R
BOOT
C
C
C
R
R
C
C
D
D
REF
EN
EN
1
2
A
B
P
1
2
A
B
Doc ID 14321 Rev 4
Table
7. A high quality ceramic
1N4148
1N4148
100 µF
100 nF
220 nF
100 kΩ
5.6 nF
39 kΩ
39 kΩ
Value
10 nF
68 nF
Application information
0.6 Ω
0.6 Ω
1 nF
1 nF
Figure
A
and
25.
A
23/32
and