L6219 STMicroelectronics, L6219 Datasheet - Page 10

• Manufacturer Part Number: L6219
• Description: IC, MOTOR DRIVER, STEPPER, 750mA, DIP-24
• Manufacturer: STMicroelectronics
• Type: Driverr

Specifications of L6219

• Motor Type: Stepper
• No. Of Outputs: 4
• Output Current: 750mA
• Output Voltage: 46V
• Supply Voltage Range: 4.75V To 5.25V
• Driver Case Style: DIP
• No. Of Pins: 24
• Operating Current: 15mA
• Operating Temperature Classification: Commercial
• Package Type: PDIP
• Operating Supply Voltage (min): 10V
• Operating Supply Voltage (max): 46V
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 10 V to 46 V
• Supply Current: 0.01 A
• Mounting Style: Through Hole
• Package / Case: PDIP-24
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Functional description
2.4
2.5
10/16
Single-pulse generator
The pulse generator is a monostable triggered on the positive going edge of the comparator
output. The monostable output is high during the pulse time, toff, which is determined by the
time components Rt and Ct.
The single pulse switches off the power feed to the motor winding, causing the winding
current to decrease during t
Output stage
The output stage contains four darlington transistors (source drivers) four saturated
transistors (sink drivers) and eight diodes, connected in two H bridge.
Figure 4.
The source transistors are used to switch the power supplied to the motor winding, thus
driving a constant current through the winding. It should be noted however, that is not
permitted to short circuit the outputs.
Principle operating sequence
off
. If a new trigger signal should occur during t
t
off
= 1.1 · R
t
C
t
off
, it is ignored.
L6219