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參數(shù)資料
| 型號： | L6591TR |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO16 |
| 封裝： | ROHS COMPLIANT, SOP-16 |
| 文件頁數(shù)： | 18/32頁 |
| 文件大小： | 560K |
| 代理商： | L6591TR |
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L6591
Summary of L6591 power management functions
Doc ID 14821 Rev 4
25/32
6
Summary of L6591 power management functions
It has been seen that the device is provided with a number of power management functions:
different operating mode upon loading conditions, protection functions, as well as interaction
with the PFC pre-regulator. To help the designer familiarize with these functions, in the
following tables all of theme are summarized with their respective activation mechanism and
the resulting status of the most important pins. This can be useful not only for a correct use
of the IC but also for diagnostic purposes: especially at prototyping/debugging stage, it is
quite common to bump into unwanted activation of some function, and these tables can be
used as a sort of quick troubleshooting guide.
Table 5.
Light load management
Feature
Description
Caused by
IC
behavior
Vcc
restart
[V]
Consumption
[mA]
PFC_STOP
SS
OSC
Burst mode
Controlled
ON-OFF
operation for
low power
consumption
at light load
VCOMP <
VCOMPBon
Pulse
skipping
operation
N.A.
2 mA max
when
VCOMP <
VCOMPBon
Active (low)
when
VCOMP <
VCOMPBon
No
change
Stopped
when
VCOMP <
VCOMPBon
Adaptive
UVLO
Extended
Vcc range at
light load
VCOMP <
VCOMPL
UVLO
threshold
reduction
N.A.
No change
No
change
Run
Table 6.
Protections
Protection
Description
Caused by
IC
behavior
Vcc
restart
[V]
IC Iq
[mA]
VREF
[V]
SS
VCOMP
[V]
OSC
[V]
PFC_STOP
OLP
Output
overload
protection
VCOMP =
VCOMPH
VSS >
VSSDIS
Auto
restart (1)
5
1.2
5
N.A.
0
Stop
Active (low)
VCOMP =
VCOMPH
VSS >
VSSLAT
Latched
13
0.35
max
0
N.A.
0
Stop
Active (low)
Short circuit
protection
Output short
circuit
protection
VCOMP =
VCOMPH
VSS >
VSSDIS
Auto
restart (1)
5
1.2
5
N.A.
0
Stop
Active (low)
VCOMP =
VCOMPH
VSS >
VSSLAT
Latched
13
0.35
max
0
N.A.
0
Stop
Active (low)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| L6598 | 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| L6598_04 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:HIGH VOLTAGE RESONANT CONTROLLER |
| L6598D | 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
| L6598D013TR | 功能描述:PMIC 解決方案 High Volt Reson Cont RoHS:否 制造商:Texas Instruments 安裝風格:SMD/SMT 封裝 / 箱體:QFN-24 封裝:Reel |
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