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L6258EX Datasheet(PDF) 11 Page - STMicroelectronics

Part # L6258EX
Description  PWM controlled high current DMOS universal motor driver
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6258EX Datasheet(HTML) 11 Page - STMicroelectronics

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L6258EX
Functional description
11/32
2.1
Reference voltage
The voltage applied to VREF pin is the reference for the internal DAC and, together with the
sense resistor value, defines the maximum current into the motor winding according to the
following relation:
where Rs = sense resistor value
Figure 4.
Power bridge configuration
I
MAX
0,5
V
REF
⋅
R
S
------------------------------
1
FI
-----
V
REF
R
S
--------------
⋅
==
LOAD
OUT_A
OUT_B
T1
T3
T2
T4
IN_A
IN_B
VS
0
OUTA
OUTB
Iload
0
OUTA
OUTB
Iload
0
OUTA
OUTB
Iload
Fig. 4A
Fig. 4B
Fig. 4C
D97IN624



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