EVAL6229QR STMicroelectronics, EVAL6229QR Datasheet - Page 6

• 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

Demonstration board description
6/10
Table 3.
The input lines EN, BRAKE and F/R are connected to ground through a pull-down resistor
which sets the default logic level to “low”. An external signal can be applied to change each
input status. The Hall effect inputs H1, H2 and H3 have a pull-up resistor connected to the
V
A charge pump circuit, made up of D1, C3 and C4, generates the supply voltage for the
high-side integrated MOSFETs. Due to voltage and current switching at relatively high
frequency, these components are connected through short paths in order to minimize
induced noise in other circuits.
R4 and C5 are used by the integrated overcurrent protection circuitry to set the protection
timings (disable time t
the values in
R8 and C6 are used to set the off-time t
RC network value, the off-time should be adjusted according to the electrical characteristics
and supply voltage of the motor.
R11, R12 and C8 are low-pass filters to provide an external reference voltage through the
PWM output of a microcontroller.
R9 and C7 are used to set the off-time t
can be used to implement a simple frequency-to-voltage converter (speed loop control).
Figure
the EVAL6229QR demonstration board. A GND area is used for the IC power dissipation.
DD
R1, R2, R3, R4
Part reference
R5, R6, R7
voltage, which can be provided by the VDD pin.
C4, C8
4,
R10
R11
R12
C1
C2
C3
C5
C6
C7
D1
R8
R9
U1
Figure 5
EVAL6229QR component list
Table
and
3).
DISABLE
100kΩ 5% 0.25W
100kΩ 1% 0.25W
Figure 6
10kΩ 5% 0.25W
20kΩ 1% 0.25W
20kΩ 5% 0.25W
2kΩ 5% 0.25W
220nF/100V
100µF/63V
220nF/25V
Part value
BAT46SW
10nF/25V
0.4Ω 1W
L6229Q
820pF
5.6nF
10nF
is about 200 µs and delay time t
Doc ID 16960 Rev 1
show the component placement and the two-layer layout of
OFF
PULSE
of the PWM to about 50 µs. When changing the
of the TACHO pin. The TACHO output signal
3-phase BLDC motor driver in VFQFPN5x5
Part description
DELAY
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Capacitor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Diodes
is about 1 µs, based on
AN3134