L6714 STMicroelectronics, L6714 Datasheet - Page 8

• Manufacturer Part Number: L6714
• Description: IC CTRLR 4PH W/DRIVERS 64-TQFP
• Manufacturer: STMicroelectronics

Specifications of L6714

• Applications: Controller, Intel VR10, VR11, AMD CPU
• Voltage - Input: 12V
• Number Of Outputs: 4
• Voltage - Output: 0.3 ~ 1.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
• Mounting Style: SMD/SMT
• Case: QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Pin settings
8/70
Table 1.
N°
15
16
17
18
19
20
21
22
23
24
CS_SEL
SSOSC/
DROOP
OUTEN
COMP
SGND
VSEN
CS4+
DAC/
VCC
REF
Pin
FB
Pin functions
Device supply voltage. The operative voltage is 12V ±15%. Filter with 1µF (typ)
MLCC vs. SGND.
DAC and Current Sense SELection Pin.
This pin sources a constant 12.5µA current. By connecting a resistor vs. SGND
it is possible to select between Intel and AMD integrated DACs and Current
Sense methods.
Filter with 100pF(max) vs. SGND.
DACs and Current Sense methods cannot be changed dynamically.
See “DAC selection” Section
OUTput ENable Pin.
Forced low, the device stops operations with all MOSFET OFF: all the
protections are disabled except for
page
Set free, the device starts-up implementing soft-start up to the selected VID
code.
Cycle this pin to recover latch from protections; filter with 1nF (typ) vs. SGND.
Intel Mode. Soft Start OSCillator Pin.
By connecting a resistor R
F
Setting this frequency allows programming the Soft-Start time T
to the R
implemented to reach V
moves from V
details.
AMD Mode. REFerence Output. Filter with 47 - 4.7nF vs. SGND.
All the internal references are referred to this pin. Connect to the PCB Signal
Ground.
Remote Buffer Output, it manages OVP and UVP protections and PGOOD
(when applicable).
See Table 10
A current proportional to the total current read is sourced from this pin according
to the Current Reading Gain.
Short to FB to implement Droop Function or Short to SGND to disable the
function.Connecting to SGND through a resistor and filtering with a capacitor,
the current info can be used for other purposes.
See “Droop function (Optional)” Section
Error Amplifier Inverting Input. Connect with a resistor R
R
Error Amplifier Output. Connect with an R
The device cannot be disabled by pulling down this pin.
Channel 4 Current Sense Positive Input.
LS Mosfet Sense: connect through a resistor Rg to the LS mosfet Source.
Inductor DCR Sense: connect through an R-C filter to the phase-side of the
channel 4 inductor.
See “Layout guidelines” Section
SS
F
- C
of an internal additional oscillator that drives the reference during Soft-Start.
47.
F
SSOSC
vs. COMP.
for details.
BOOT
connected with a gain of 20.1612 [µs / k ]. The same slope
See “Output voltage monitor and protections” Section
to the programmed VID code.
BOOT
SSOSC
and
has to be considered also when the reference
vs. SGND, it allows programming the frequency
for proper layout of this connection.
See Table 10
Section 16.2: Preliminary over voltage on
Function
F
- C
F
for details.
vs. FB.
See “Soft start” Section
FB
vs. VSEN and with an
SS
proportionally
and
L6714
for