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L6258EX Datasheet(PDF) 6 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) 6 Page - STMicroelectronics

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Block diagram
L6258EX
6/32
Figure 2.
Pin connection (top view)
Table 3.
Pin functions
Pin #
Name
Description
1, 36
PWR_GND
Ground connection (1). They also conduct heat from die to
printed circuit copper.
2, 17
PH_1, PH_2
These TTL compatible logic inputs set the direction of
current flow through the load. A high level causes current to
flow from OUTPUT A to OUTPUT B.
3I1_1
Logic input of the internal DAC (1). The output voltage of the
DAC is a percentage of the Vref voltage applied according to
the thruth Table 5 on page 12.
4I0_1
See pin 3
5
OUT1A
Bridge output connection (1)
6
DISABLE
Disables the bridges for additional safety during switching.
When not connected the bridges are enabled
7TRI_cap
Triangular wave generation circuit capacitor. The value of
this capacitor defines the output switching frequency
PWR_GND
PH_2
EA_IN2
EA_OUT2
DISABLE
EA_OUT1
OUT1A
EA_IN1
PH_1
SENSE1
OUT1B
I3_1
VS
I2_1
I3_2
OUT2B
SENSE2
PWR_GND
18
16
17
15
6
5
4
3
2
21
22
31
32
33
35
34
36
20
1
19
PWR_GND
PWR_GND
D96IN432E
GND
TRI_CAP
VCC
I0_1
VREF1
I1_1
9
8
7
28
29
30
VCP1
SIG_GND
10
27
OUT2A
VCP2
VBOOT
VREF2
I2_2
I0_2
14
12
11
23
25
26
VS
I1_2
13
24



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