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參數(shù)資料
| 型號： | L6716TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | DUAL SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, QCC48 |
| 封裝： | 7 X 7 MM, 1 MM HEIGHT, ROHS COMPLIANT, VFQFP-48 |
| 文件頁數(shù)： | 37/57頁 |
| 文件大?。?/td> | 829K |
| 代理商： | L6716TR |
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Output voltage monitor and protections
L6716
42/57
Doc ID 14521 Rev 3
Note:
In order to avoid the OCP intervention during the DVID, the device automatically increases
the OCP threshold to 150% of the selected OCP threshold during every VID transition
(adding an extra 15 s of delay).
Since the device reads the current information across inductor DCR, the process spread
and temperature variations of these sensing elements has to be considered. Also the
programmable threshold spread (IOCTH current spread as a consequence of VOCSET
spread, See “Electrical characteristics” Section) has to be considered for the ROCSET
design:
The OCSET pin is also used to select the number of phases when PSI mode is asserted.
To select the desired OCP threshold and number of phase during PSI mode, refer to the
following table.
R
OCSET
V
OCSET MIN
()
DCR MAX
()
Rg
--------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
------------------------------------------------------------------------------------------
=
Table 10.
# phases when PSI is asserted
# phase
normal mode
(N)
# phase
PSI mode
(N_PSI)
Phases
enabled
ROCSET
4
1
PHASE1
2
PHASE1
PHASE3
3
1
PHASE1
2
PHASE1
PHASE3
2
1
PHASE1
2N. A.
Do not use this condition (Not applicable)
R
OCSET
V
OCSET MIN
()
DCR MAX
)
()
Rg
-----------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
77
μA
+
------------------------------------------------------------------------------------------------------------------------
=
R
OCSET
V
OCSET MIN
()
DCR MAX
()
Rg
--------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
------------------------------------------------------------------------------------------
=
R
OCSET
V
OCSET MIN
()
DCR MAX
()
Rg
--------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
------------------------------------------------------------------------------------------
=
R
OCSET
V
OCSET MIN
()
DCR MAX
)
()
Rg
-----------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
77
μA
+
------------------------------------------------------------------------------------------------------------------------
=
R
OCSET
V
OCSET MIN
()
DCR MAX
()
Rg
--------------------------------
I
OUT OCP
()
N
-------------------------------
ΔIL
2
---------
+
------------------------------------------------------------------------------------------
=
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