EVAL6730 STMicroelectronics, EVAL6730 Datasheet - Page 21
![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
2.13 Power Management
Even when operating at current levels well below the maximum ratings of the device, the operating junction tem-
perature must be kept below 125 °C.
Figure 21 shows the IC dissipated power versus the r.m.s. load current, in 4 different driving sequences, assum-
ing the supply voltage is 24V.
Figure 21. IC Dissipated Power versus Output Current.
P
P
P
D
P
D
D
D
[W]
[W]
[W ]
[W]
10
10
10
10
8
6
4
2
0
8
6
4
2
0
8
6
4
2
0
8
6
4
2
0
0
0
0
0
0.5
0.5
0.5
0.5
MICROSTEPPING
NORM AL DRIVE
HALF STEP
WAVE DRIVE
1
1
1
1
I
I
I
I
OUT
OUT
OUT
OUT
1.5
1.5
1.5
1.5
[A]
[A ]
[A]
[A]
2
2
2
2
2.5
2.5
2.5
2.5
3
3
3
3
I
I
A
B
I
I
I
I
I
I
A
B
A
A
B
B
Test Conditions:
Supply Voltage = 24V
Test Conditions:
Supply Voltage = 24V
f
f
SW
Test Conditions:
Supply Volt age = 24 V
SW
Test Conditions:
Supply Voltage = 24V
= 30 k Hz (slow decay)
= 50 k Hz (slow decay)
I
OUT
I
OUT
I
No PWM
f
I
OUT
OUT
SW
No PW M
f
I
No PWM
f
SW
OUT
SW
= 30 kHz (slow decay)
= 3 0 kHz (slow decay)
= 30 kHz (slow decay)
AN1451 APPLICATION NOTE
I
OUT
I
OUT
I
OUT
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