参数资料
型号: L6713ATR
厂商: Holtek Semiconductor Inc.
英文描述: 2/3 Phase controller with embedded drivers for Intel VR10, VR11 and AMD 6 bit CPUs
中文描述: 2 / 3为英特尔VR10,VR11和AMD的嵌入式驱动器相控制器6位CPU
文件页数: 39/64页
文件大小: 515K
代理商: L6713ATR
Soft start
L6713A
44/64
Figure 17. Soft-start time for Intel mode when using RSSOSC, diode versus SSEND.
16.1.2
SS/LTB/AMD connections when using LTB Gain < 2
When using LTB Gain <2, the equivalent RSSOSC resistance is composed by the sum of
R1+R2) because until the Soft Start is not finished the Q transistor is OFF (See Figure 18).
Figure 18. SS/LTBG/AMD connections for INTEL mode, when using LTB Gain < 2
where TSS is the time spent to reach the programmed voltage VSS and RSSOSC the resistor
connected between SS/LTBG/AMD and SGND (RSSOSC = R1 + R2) in k.
0
1
2
3
4
5
6
7
1
10
100
1000
Rssosc [kOhms] vs. SSEND through sognal diode
S
o
ft
St
a
rt
T
im
e
T
s
[m
s
]
Time to Vboot
Time to 1.6000V
SS/LTBG/ AMD
SS_END
R2
R1
Q
RPull-Up(1k)
VPull-Up(1.2V)
to SSEND Logic
Rb(10k)
RSSOSC=R1+R2
R
SSOSC k
[]
T
2 s
[] 4.9783 10
2
=
T
SS s
[]
1075
s
[]
R
SSOSC k
[]
5.3816
10
2
-------------------------------------
V
SS
if V
SS
V
BOOT
>
()
R
SSOSC k
[]
5.3816
10
2
-------------------------------------
V
BOOT
V
BOOT
V
SS
()
+
[]
if V
SS
V
BOOT
<
()
+
=
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