L298HN STMicroelectronics, L298HN Datasheet - Page 8

• Manufacturer Part Number: L298HN
• Description: IC DRVR FULL DUAL MULTIWATT15
• Manufacturer: STMicroelectronics
• Type: H Bridger

Specifications of L298HN

• Input Type: Non-Inverting
• Number Of Outputs: 4
• Current - Output / Channel: 2A
• Current - Peak Output: 3A
• Voltage - Supply: 4.5 V ~ 46 V
• Operating Temperature: -25°C ~ 130°C
• Mounting Type: Through Hole
• Package / Case: Multiwatt-15 (Horizontal, Bent and Staggered Leads)
• Operating Supply Voltage: 4.8 V to 46 V
• Mounting Style: Through Hole
• Current, Output, High Level: 2 A
• Number Of Drivers: 2
• Package Type: 15-Lead Multiwatt
• Power Dissipation: 25 W
• Temperature, Operating, Maximum: 130 °C
• Temperature, Operating, Minimum: -25 °C
• Voltage, Input, High Level: 7 V
• Voltage, Input, Low Level: -0.3 V
• Voltage, Supply: 46 V (Max.)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• On-state Resistance: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-2940-5

This solution can drive until 3 Amps In DC operation
and until 3.5 Amps of a repetitive peak current.
On Fig 8 it is shown the driving of a two phase bipolar
stepper motor ; the needed signals to drive the in-
puts of the L298 are generated, in this example,
from the IC L297.
Fig 9 shows an example of P.C.B. designed for the
application of Fig 8.
Figure 8 : Two Phase Bipolar Stepper Motor Circuit.
This circuit drives bipolar stepper motors with winding currents up to 2 A. The diodes are fast 2 A types.
L298
8/13
R
D1 to D8 = 2 A Fast diodes
S1
= R
S2
= 0.5
{
V
trr
F
200 ns
1.2 V @ I = 2 A
Fig 10 shows a second two phase bipolar stepper
motor control circuit where the current is controlled
by the I.C. L6506.