EVAL6226QR STMicroelectronics, EVAL6226QR Datasheet - Page 24

• Manufacturer Part Number: EVAL6226QR
• Description: EVAL BOARD FOR L6226Q
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL6226QR

• Mfg Application Notes: EVAL6226QR AppNote
• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: L6226Q
• Primary Attributes: Stepper, Bi-Polar/2-Phase, 1A DC, 8 ~ 52V Output
• Secondary Attributes: Thermal Protection, Internal Free Wheeling Diodes
• Board Size: 27 mm x 24.5 mm
• Maximum Operating Temperature: + 125 C
• Operating Supply Voltage: 8 V to 52 V
• Product: Power Management Modules
• Dimensions: 27 mm x 24.5 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6226Q
• Other names: 497-6816

Thermal management
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Thermal management
In most applications the power dissipation in the IC is the main factor that sets the maximum
current that can be deliver by the device in a safe operating condition. Therefore, it has to be
taken into account very carefully. Besides the available space on the PCB, the right package
should be chosen considering the power dissipation. Heat sinking can be achieved using
copper on the PCB with proper area and thickness. For instance, using a VFQFPN32L 5x5
package the typical R
a dissipating copper surface of 0.5 cm
through 18 via holes (9 below the IC).
th(JA)
is about 42 °C/W when mounted on a double-layer FR4 PCB with
Doc ID 14335 Rev 5
2
on the top side plus 6 cm
2
ground layer connected
L6226Q