STEVAL-ISA038V1 STMicroelectronics, STEVAL-ISA038V1 Datasheet - Page 13

BOARD EVALUATION W/L6728

STEVAL-ISA038V1

Manufacturer Part Number
STEVAL-ISA038V1
Description
BOARD EVALUATION W/L6728
Manufacturer
STMicroelectronics
Type
DC/DC Switching Converters, Regulators & Controllersr
Datasheets

Specifications of STEVAL-ISA038V1

Design Resources
STEVAL-ISA038V1 Schematic STEVAL-ISA038V1 Bill of Material
Main Purpose
DC/DC, Step Down
Outputs And Type
1, Non-Isolated
Voltage - Output
1.25V
Current - Output
5A
Voltage - Input
5 ~ 12V
Regulator Topology
Buck
Frequency - Switching
300kHz
Board Type
Fully Populated
Utilized Ic / Part
L6728
Input Voltage
5 V to 12 V
Output Voltage
1.25 V
Product
Power Management Modules
Silicon Manufacturer
ST Micro
Silicon Core Number
L6728D
Kit Application Type
Power Management - Voltage Regulator
Application Sub Type
Step Down DC/DC Controller
Kit Contents
Board
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
L6728
Other names
497-8228
STEVAL-ISA038V1

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
STEVAL-ISA038V1
Manufacturer:
STMicroelectronics
Quantity:
1
L6728
8.1
Over current threshold setting
L6728 allows to easily program a 1
550 mV, simply by adding a resistor (R
will be automatically set accordingly.
During a short period of time (about 5 ms) following VCC rising over UVLO threshold, an
internal 10 µA current (I
across R
level over current threshold. The OC setting procedure overall time length is about 5 ms.
Connecting a R
threshold will be:
the programmed 2
R
In case R
values: an internal safety clamp on LGATE is triggered as soon as LGATE voltage reaches
600 mV, setting the maximum threshold and suddenly ending OC setting phase.
I
I
OCth1
OCth2
OCSET
values range from 5 kΩ to 55 kΩ.
=
=
OCSET
OCSET
I
------------------------------------------- -
1.5
OCSET
. This voltage drop will be sampled and internally held by the device as 1
OCSET
is not connected, the device sets the OCP thresholds to the maximum
I
------------------------------------------- -
R
nd
OCSET
dsON
level threshold will be:
R
resistor between LGATE and GND, the programmed 1
OCSET
R
OCSET
dsON
R
) is sourced from LGATE pin, determining a voltage drop
OCSET
st
level over current threshold ranging from 50 mV to
OCSET
) between LGATE and GND. 2
Over current protection
nd
st
level threshold
level
13/31
st

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