EVAL6730 STMicroelectronics, EVAL6730 Datasheet - Page 20

• Manufacturer Part Number: EVAL6730
• Description: EVAL BOARD FOR L6730XX
• Manufacturer: STMicroelectronics
• Type: Motor / Motion Controllers & Driversr

Specifications of EVAL6730

• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Power - Output: 66W
• Voltage - Output: 3.3V
• Current - Output: 20A
• Voltage - Input: 4.5 ~ 14V
• Regulator Topology: Buck
• Frequency - Switching: 400kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L6730
• Input Voltage: 8 V to 52 V
• Product: Power Management Modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: L6208
• Other names: 497-5501

Device description
5.7
20/52
Figure 12. Sink mode disabled: Inductor current during and after soft-start (L6730)
Driver section
The high-side and low-side drivers allow for the use of different types of power MOSFETs
(also multiple MOSFETs to reduce the R
low-side driver is supplied by V
A predictive dead time control avoids MOSFETs cross-conduction maintaining very short
dead time duration (see
The control monitors the phase node in order to sense the low-side body diode recirculation.
If the phase node voltage is less than a certain threshold (–350 mV typ.) during the dead
time, it will be reduced in the next PWM cycle. The predictive dead time control does not
work when the high-side body diode is conducting because the phase node does not go
Figure
Doc ID 11938 Rev 3
CCDR
13.).
while the high-side driver is supplied by the BOOT pin.
DSON
), maintaining fast switching transitions. The
L6730 - L6730B
Vout
Vcc
Vss
I
L