L6219R STMicroelectronics, L6219R Datasheet - Page 6

• Manufacturer Part Number: L6219R
• Description: IC STEPPER MOTOR DRIVER SO-24
• Manufacturer: STMicroelectronics
• Type: Driverr

Specifications of L6219R

• Applications: DC Motor Driver, Stepper Motor Driver
• Number Of Outputs: 2/1
• Current - Output: ±500mA
• Voltage - Load: 4.5 V ~ 10 V
• Voltage - Supply: 4.75 V ~ 5.25 V
• Operating Temperature: -20°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Product: Stepper Motor Controllers / Drivers
• Operating Supply Voltage: 4.5 V to 30 V
• Supply Current: 0.01 A
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Block diagram and pins description
Note:
6/16
Table 2.
ESD on GND, Vs, Vss, OUT 1 A and OUT 2 A is guaranteed up to 1.5 KV (human body
model, 1500 W, 100 pF).
10,16
11,15
12,14
Pin #
3,23
4,22
5,21
6,19
7,18
8,20
9,17
1,2
13
24
Sense resistor
Comparator
Vss - Logic
Reference
Vs - Load
Output A
Output B
Pin description
Ground
Ground
voltage
Input 0
Input 1
supply
supply
Phase
Name
input
RC
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
Output connection. The output stage is a H bridge formed by four
transistors and four diodes suitable for switching applications
See pins 7,18
Ground connection. With pins 6 and 19 also conducts heat from die to
printed circuit copper
See input 1 (pins 9,17)
These pins and pins 8,20 (input 0) are logic inputs which select the
outputs of the comparators to set the current level. Current also depends
on the sensing resistor and reference voltage. See funcional description
This TTL-compatible logic inputs sets the direction of current flow through
the load. a high level causes current to flow from output a (source) to
output B (sink). A schmitt trigger on this input provides good noise
immunity and a delay circuit prevents output stage short circuits during
switching
A voltage applied to this pin sets the reference voltage of the
comparators, this determining the output current (also thus depending on
Rs and the two inputs input 0 and input 1)
A parallel RC network connected to this pin sets the OFF time of the
higher power transistors. The pulse generator is a monostable triggered
by the output of the comparators (toff = 1.1 RT CT)
Supply voltage input for logic circuitry
Supply voltage input for the output stages
Description
Figure 4
L6219R