L6219R_06 STMICROELECTRONICS [STMicroelectronics], L6219R_06 Datasheet - Page 5

• Manufacturer Part Number: L6219R_06
• Description: Stepper motor driver
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

L6219R
1
Block diagram & pins description
Figure 1.
Figure 2.
Table 1.
Pin #
3;23
4;22
5;21
6;19
1;2
COMPARATOR
RESISTOR
OUTPUT A
OUTPUT B
GROUND
Block diagram
Pin connection (Top view)
Pin description
SENSE
INPUT
Name
See pins 5;21
Connection to Lower Emitters of Output Stage for Insertion of Current
Sense Resistor
Input connected to the comparators. The voltage across the sense
resistor is feedback to this input throught the low pass filter RC CC. The
higher power transistors are disabled when the sense voltage exceeds
the reference voltage of the selected comparator. When this occurs the
current decays for a time set by RT CT (toff = 1.1 RT CT). See fig. 4.
Output Connection. The output stage is a "H" bridge formed by four
transistors and four diodes suitable for switching applications.
See pins 7;18
Description
Block diagram & pins description
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