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L6751BTR Datasheet(PDF) 8 Page - STMicroelectronics

Part # L6751BTR
Description  Digitally controlled dual PWM for Intel VR12 and AMD SVI
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L6751BTR Datasheet(HTML) 8 Page - STMicroelectronics

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Pin description and connection diagram
L6751B
8/58
Doc ID 024028 Rev 1
2
Pin description and connection diagram
Figure 3.
L6751B pin connections (top view)
2.1
Pin description
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
PWM3
PWM2
PWM1
PHASE
VR_RDY
GND
CS6N
CS6P
CS5P
CS5N
CS4N
CS4P
CS3P
CS3N
CS2N
CS2P
CS1P
SVDATA
ALERT#
SVCLK
EN
VIN
OSC
STCOMP
STM
ADDR
NC
SMCLK
SMAL#
SMDATA
GND
IMAX/SIMAX
SCOMP
SFB
L6751
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
AM14833v1
Table 2.
Pin description
Pin#
Name
Type
Function
1PWM3
D(1)
PWM output.
Connect to multi-phase channel 3 external driver PWM input. During nor-
mal operation the device is able to manage HiZ status by setting and hold-
ing the PWMx pin to the predefined fixed voltage. See Table 7 for phase
number programming.
2
PWM2
D
PWM output.
Connect to multi-phase external drivers PWM input. These pins are also
used to configure HiZ levels for compatibility with drivers and DrMOS. Dur-
ing normal operation the device is able to manage HiZ status by setting
and holding the PWMx pin to the predefined fixed voltage.
3PWM1
D
4
PHASE
A
Connect through resistor divider to multi-phase channel1 switching node.
n/a
NC
-
Not internally bonded
5
VR_RDY
D
VR Ready. Open drain output set free after SS has finished in multi-phase
section and pulled low when triggering any protection on multi-phase sec-
tion. Pull up to a voltage lower than 3.3 V (typ.), if not used it can be left
floating.


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