EVAL6730 STMicroelectronics, EVAL6730 Datasheet - Page 9
![EVAL BOARD FOR L6730XX](/photos/9/30/93060/eval6730_sml.jpg)
EVAL6730
Manufacturer Part Number
EVAL6730
Description
EVAL BOARD FOR L6730XX
Manufacturer
STMicroelectronics
Type
Motor / Motion Controllers & Driversr
Datasheets
1.L6730TR.pdf
(52 pages)
2.L6730DTR.pdf
(50 pages)
3.EVAL6730.pdf
(9 pages)
4.EVAL6732.pdf
(43 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
L6730C - L6730D
Table 3.
11
12
13
14
15
16
17
18
19
20
Pins connection
PGOOD
PHASE
HGATE
LGATE
V
PGND
BOOT
OCH
OCL
V
CCDR
CC
A resistor connected from this pin to ground sets the valley- current-limit. The
valley current is sensed through the low-side MOSFET(s). The internal current
generator sources a current of 100 A (I
external resistor (R
equation:
Connecting a capacitor from this pin to GND helps in reducing the noise
injected from V
frequency noise related to the GND. Connect a capacitor only to a “clean”
GND.
A resistor connected from this pin and the high-side MOSFET(s) drain sets the
peak-current-limit. The peak current is sensed through the high-side
MOSFET(s). The internal 100 A current generator (I
the drain through the external resistor (R
given by the following equation:
This pin is connected to the source of the high-side MOSFET(s) and provides
the return path for the high-side driver. This pin monitors the drop across both
the upper and lower MOSFET(s) for the current limit together with OCH and
OCL.
This pin is connected to the high-side MOSFET(s) gate.
Through this pin is supplied the high-side driver. Connect a capacitor from this
pin to the PHASE pin and a diode from V
BOOT).
This pin has to be connected closely to the low-side MOSFET(s) source in
order to reduce the noise injection into the device.
This pin is connected to the low-side MOSFET(s) gate.
5V internally regulated voltage. It is used to supply the internal drivers and as a
voltage reference. Filter it to ground with at least 1µF ceramic cap.
Supply voltage pin. The operative supply voltage range is from 4.5V to 14V.
This pin is an open collector output and it is pulled low if the output voltage is
not within the specified thresholds (90%-110%). If not used it may be left
floating. Pull-up this pin to V
CC
to the device, but can be a low impedance path for the high-
OCL
). The over-current threshold is given by the following
I
VALLEY
I
CCDR
PEAK
with a 10K resistor to obtain a logical signal.
I
OCH
I
R
2
OCL
OCL
DSonHS
OCH
R
CCDR
) from this pin to ground through the
DSonLS
R
). The over-current threshold is
R
OCH
OCL
to this pin (cathode versus
Pin connections and functions
OCH
) sinks a current from
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