L6717A Datasheet, PDF (12/57 Pages) STMicroelectronics – Dynamic phase management

Pins description and connection diagrams
L6717A
Pin#
15
16
17
18
19
20
21
22
23
24
Name
Table 2. Pin description (continued)
Function
CS1P
Channel 1 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 1 inductor. See
Section 11 for proper layout of this connection.
CS1N
Channel 1 current sense negative input.
Connect through a R_G resistor to the output-side of the channel inductor. Filter the
Vout-side of R_G resistor with 100nF to GND.
See Section 11 for proper layout of this connection.
CS2P
Channel 2 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 2 inductor. See
Section 11 for proper layout of this connection.
CS2N
Channel 2 current sense negative input.
Connect through a R_G resistor to the output-side of the channel inductor. Filter the
Vout-side of R_G resistor with 100nF to GND.
See Section 11 for proper layout of this connection.
CS3P
Channel 3 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 3 inductor. When
working at 2 phase, directly connect to V_{out_CORE}.
See Section 11 for proper layout of this connection.
CS3N
Channel 3 current sense negative input.
Connect through a R_G resistor to the output-side of the channel inductor. When
working at 2 phase, connect through R_G to CS3+. Filter the Vout-side of R_G resistor
with 100nF to GND.
See Section 11 for proper layout of this connection.
CS4P
Channel 4 current sense positive input.
Connect through an R-C filter to the phase-side of the channel 4 inductor. When
working at 2 or 3 phase, directly connect to V_{out_CORE}.
See Section 11 for proper layout of this connection.
CS4N
Channel 4 current sense negative input.
Connect through a R_G resistor to the output-side of the channel inductor. When
working at 2 or 3 phase, connect through R_G to CS4+.Filter the Vout-side of R_G
resistor with 100nF to GND.
See Section 11 for proper layout of this connection.
NB_CSP
NB channel current sense positive input.
Connect through an R-C filter to the phase-side of the NB channel inductor. See
Section 11 for proper layout of this connection.
NB_CSN
NB channel current sense negative input.
Connect through a R_G resistor to the output-side of the channel inductor. Filter the
Vout-side of R_G resistor with 100nF to GND.
See Section 11 for proper layout of this connection.
12/57
DocID024465 Rev 1