STEVAL-ISA026V1 STMicroelectronics, STEVAL-ISA026V1 Datasheet - Page 19
![EVAL BOARD 20A 250KHZ L6732](/photos/9/13/91309/steval-isa026v1_sml.jpg)
STEVAL-ISA026V1
Manufacturer Part Number
STEVAL-ISA026V1
Description
EVAL BOARD 20A 250KHZ L6732
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Specifications of STEVAL-ISA026V1
Design Resources
STEVAL-ISA026V1 Gerber Files STEVAL-ISA026V1 Schematic STEVAL-ISA026V1 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
3.3V
Current - Output
20A
Voltage - Input
4.5 ~ 14V
Regulator Topology
Buck
Frequency - Switching
250kHz
Board Type
Fully Populated
Utilized Ic / Part
L6732
Input Voltage
4.5 V to 14 V
Output Voltage
3.3 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
L6732
Kit Application Type
Power Management - Voltage Regulator
Rohs Compliant
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Power - Output
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
For Use With/related Products
L6732
Other names
497-5869
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
STEVAL-ISA026V1
Manufacturer:
STMicroelectronics
Quantity:
135
L6732
Device description
other one will be the slave. The Slave controller will increase its switching frequency
reducing the ramp amplitude proportionally and then the modulator gain will be increased.
Figure 13. Synchronization: PWM signal
Figure 14. Synchronization: Inductor currents
To avoid a huge variation of the modulator gain, the best way to synchronize two or more
devices is to make them work at the same switching frequency and, in any case, the
switching frequencies can differ for a maximum of 50 % of the lowest one. If, during
synchronization between two (or more) L6732, it's important to know in advance which the
master is, it's timely to set its switching frequency at least 15 % higher than the slave. Using
an external clock signal (f
) to synchronize one or more devices that are working at a
EXT
different switching frequency (f
) it is recommended to follow the below formula:
SW
Equation 5
≤
≤
⋅
f
f
1
3 ,
f
SW
EXT
SW
The phase shift between master and slaves is approximately 180 °.
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