EVAL6229QR STMicroelectronics, EVAL6229QR Datasheet - Page 3

• Manufacturer Part Number: EVAL6229QR
• Description: BOARD DEMO L6229Q BLDC MOT CTRL
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL6229QR

• Main Purpose: Power Management, Motor Control
• Embedded: No
• Utilized Ic / Part: L6229Q
• Primary Attributes: 3-Ph BLDC, 8 ~ 52V Output, PWM Current Control, Brake Function
• Secondary Attributes: Over Current, Cross Conduction & Temperature Protection
• Maximum Operating Temperature: + 125 C
• Operating Supply Voltage: 8 V to 52 V
• Product: Power Management Development Tools
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6229Q
• Other names: 497-10748

AN3134
Demonstration board description
Figure 2.
EVAL6229QR demonstration board pin locations
The decoding logic integrated in the device is a combinatory logic which provides the
appropriate driving signals for the three-phase bridge outputs, based on the signals coming
from the three hall sensors H1, H2 and H3. The hall sensors detect rotor position in a 3-
phase BLDC motor.
The EN pin connected to the diagnostic output DIAG is used to implement the overcurrent
and thermal protection.
To perform PWM current control, an analog reference voltage should be provided at the
VREF pin. A fixed reference voltage can be easily obtained through a resistor divider from
an external voltage rail and GND (possibly that which supplies the microcontroller or the rest
of the application). Alternatively, a very simple way of obtaining a variable voltage without
using a DAC is to low-pass filter the PWM output of a microcontroller.
Table 2
summarizes the electrical specifications of the application,
Figure 3
shows the
electrical schematic, and
Table 3
provides the component list.
Doc ID 16960 Rev 1
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