參數(shù)資料
型號: L6714TR
廠商: 意法半導體
英文描述: 4 phase controller with embedded drivers for Intel VR10, VR11 and AMD 6Bit CPUs
中文描述: 4英特爾VR10,VR11和AMD的6位嵌入式CPU的司機相控制器
文件頁數(shù): 8/70頁
文件大小: 572K
代理商: L6714TR
Pin settings
L6714
8/70
15
VCC
Device supply voltage. The operative voltage is 12V ±15%. Filter with 1μF (typ)
MLCC vs. SGND.
16
DAC/
CS_SEL
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
and
See Table 10
for details.
17
OUTEN
OUTput ENable Pin.
Forced low, the device stops operations with all MOSFET OFF: all the
protections are disabled except for
Section 16.2: Preliminary over voltage on
page 47
.
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.
18
SSOSC/
REF
Intel Mode.
Soft Start OSCillator Pin.
By connecting a resistor R
SSOSC
vs. SGND, it allows programming the frequency
F
SS
of an internal additional oscillator that drives the reference during Soft-Start.
Setting this frequency allows programming the Soft-Start time T
SS
proportionally
to the R
SSOSC
connected with a gain of 20.1612 [μs / k
]. The same slope
implemented to reach V
BOOT
has to be considered also when the reference
moves from V
BOOT
to the programmed VID code.
See “Soft start” Section
for
details.
AMD Mode.
REFerence Output. Filter with 47
- 4.7nF vs. SGND.
19
SGND
All the internal references are referred to this pin. Connect to the PCB Signal
Ground.
20
VSEN
Remote Buffer Output, it manages OVP and UVP protections and PGOOD
(when applicable).
See “Output voltage monitor and protections” Section
and
See Table 10
for details.
21
DROOP
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
22
FB
Error Amplifier Inverting Input. Connect with a resistor R
FB
vs. VSEN and with an
R
F
- C
F
vs. COMP.
23
COMP
Error Amplifier Output. Connect with an R
F
- C
F
vs. FB.
The device cannot be disabled by pulling down this pin.
24
CS4+
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
for proper layout of this connection.
Table 1.
Pin functions
Pin
Function
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