EVAL6730 STMicroelectronics, EVAL6730 Datasheet - Page 23

• 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

Figure 23. Definition of parameters for the three different sequences. The current in only one phase
Figure 24. Input Data.
Maximum Drain-Source ON Resistance
I
Maximum BEMF Voltage
Maximum diode voltage
Sensing Resistance
Stepping sequence
Quiescent Current
Motor Inductance
Motor Resistance
Step Frequency
Supply Voltage
T
Peak Current
is shown.
Decay Type
r
Off-Time
I
pk
NORMAL
I
load
Application Input Values
T
Device Input Values
Motor Input Values
T
load
I
T
tOFF
r
Ron
fCK
Rm
I
Lm
Ipk
Vd
Vb
Rs
Vs
pk
Iq
SLOW
WAVE
=
=
=
=
=
=
=
=
=
=
=
5.60E-01
1.20E+00
5.50E-03
1.50E+01
7.90E-03
6.60E+00
2.40E+01
1.00E+00
1.50E-05
1.00E+03
5.00E-01
Input Data
T
f
I
load
HALF STEP
I
T
load
t
T
[Ohm]
[Ohm]
[Ohm]
[mA]
[Hz]
[V]
[V]
[H]
[V]
[A]
[s]
-
-
I
T
T
f
r
I
pk
I
Average Value between High-Side and Low-Side
AN1451 APPLICATION NOTE
"FAST" = Quasi-Synchronous Fast decay
WAVE
T/2
I
"SLOW" = Synchronous Slow Decay
load
"NORMAL", "HALF" or "WAVE"
T
load
t
T
f
I
t
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