L6228QTR STMicroelectronics, L6228QTR Datasheet - Page 6

• 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

Pin connection
Table 4.
1. Also connected at the output drain of the over current and thermal protection MOSFET. Therefore, it has to be driven
6/32
1, 21
N°
11
12
13
14
15
16
17
19
20
22
23
24
25
26
27
28
29
30
31
putting in series a resistor with a value in the range of 2.2 kΩ - 180 kΩ, recommended 100 kΩ
9
CONTROL
HALF/FULL
CW/CCW
SENSE
SENSE
VBOOT
CLOCK
RESET
OUT1
VREF
OUT2
OUT2
VREF
OUT1
GND
RC
VCP
RC
VS
VS
Pin
Pin description
EN
B
A
B
A
B
B
B
A
A
A
B
A
Logic input
Power supply
Power supply
Power supply
Power supply
Power output Bridge B output 1.
Power output Bridge B output 2.
Power output Bridge A output 2.
Power output Bridge A output 1.
Analog input
Analog Input
Logic input
Logic input
Logic input
Logic input
Logic input
voltage
RC pin
Supply
Output
RC pin
Type
GND
(1)
Ground terminals.
RC network pin. A parallel RC network connected between this pin and
ground sets the current controller OFF-time of the bridge B.
Bridge B source pin. This pin must be connected to power ground through a
sensing power resistor.
Bridge B current controller reference voltage.
Do not leave this pin open or connected to GND.
Step mode selector. HIGH logic level sets HALF STEP mode, LOW logic level
sets FULL STEP mode.
If not used, it has to be connected to GND or +5 V.
Decay mode selector. HIGH logic level sets SLOW DECAY mode. LOW logic
level sets FAST DECAY mode.
If not used, it has to be connected to GND or +5 V.
Chip enable. LOW logic level switches OFF all power MOSFETs of both
bridge A and bridge B. This pin is also connected to the collector of the
overcurrent and thermal protection to implement over current protection.
If not used, it has to be connected to +5 V through a resistor.
Bootstrap voltage needed for driving the upper power MOSFETs of both
bridge A and bridge B.
Bridge B power supply voltage. It must be connected to the supply voltage
together with pin VS
Bridge A power supply voltage. It must be connected to the supply voltage
together with pin VS
Charge pump oscillator output.
Reset pin. LOW logic level restores the home state (state 1) on the phase
sequence generator state machine.
If not used, it has to be connected to +5 V.
Bridge A current controller reference voltage.
Do not leave this pin open or connected to GND.
Step clock input. The state machine makes one step on each rising edge.
Selects the direction of the rotation. HIGH logic level sets clockwise direction,
whereas LOW logic level sets counterclockwise direction.
If not used, it has to be connected to GND or +5 V.
Bridge A source pin. This pin must be connected to power ground through a
sensing power resistor.
RC network pin. A parallel RC network connected between this pin and
ground sets the current controller OFF-time of the bridge A.
Doc ID 14321 Rev 4
A
B
Function
L6228Q