參數(shù)資料
型號： ISL6505CB
廠商： INTERSIL CORP
元件分類： 電源管理
英文描述： Adjustable Precision Shunt Regulator 3-TO-92 -40 to 85
中文描述： 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO20
封裝： PLASTIC, MS-013AC, SOIC-20
文件頁數(shù)： 15/17頁
文件大小： 371K
代理商： ISL6505CB
15
Resistors R20, R21
These two act as a resistor divider off the V
OUT1
output; the
common connection is brought into the FB1 pin. Use the
following equation to determine them:
V
OUT1
= 0.8V * (R20 + R21)/R21.
V
OUT1
is expected to be between 1.2V and 1.5V. Note that
the undervoltage detection for this output will be typically
80% of whatever the output voltage is set at.
The sum of (R20 + R21) should equal approximately 1.2 to
1.5k
,
in order to draw about 1mA of current. If the current is
too low (resistors are too high in value), there might be a
small offset error due to the input current of the FB1 pin. On
the other extreme, the current can go as high as 10mA, in
order to meet the minimum load current requirement.
C
OUT1
should be chosen as explained in the Linear
Regulator (V
OUT1
) Compensation section.
Application Circuit
Figure 13 shows a typical application circuit for the ISL6505.
The circuit provides the 3.3V
DUAL
/3.3V
SB
voltage, the
Ethernet/LAN V
OUT1
voltage, the 1.2V
VID
voltage
identification output, and the 5V
DUAL
keyboard/mouse
voltage from +3.3V, +5V
SB
, +5V, and +12VDC ATX supply
outputs. Q4 can also be a PNP transistor, such as an
MMBT2907AL. For additional, more detailed information on
the circuit, including a Bill-of-Materials and circuit board
description, see Application Note AN1053.
Also see Intersil
Corporation’s web page (www.intersil.com).
GND
5VSB
+3.3V
IN
+5V
SB
VID_PG
VID_CT
DR1
C
CT_VID
ISL6505
+12V
IN
VID PGOOD
SLP_S3
S3
V
OUT3
3.3V
DUAL
/3.3V
SB
C
OUT3
+5V
IN
C
OUT4
V
OUT4
5V
DUAL
3V3DL
3V3DLSB
Q2
Q3
Q4
Q5
DLA
5VDLSB
FAULT
5VDL
SS
1V2VID
SHUTDOWN
FAULT
V
OUT1
1.2V - 1.5V
V
OUT2
1.2V
VID
C
OUT1
C
OUT2
SLP_S5
S5
C
SS
3V3
R
DLA
Q6
FB1
LAN
EN5
EN5
LAN
5V
R20
R21
C5
R2
V
OUT1
= 1.2V to1.5V: Q6 = FDD6530A, C
OUT1
= 1000μF
V
OUT2
= 1.2V: internal FET, C
OUT2
= 10μF
V
OUT3
= 3.3V: Q2 = 2SD1802, Q3 = FDT459N, C
OUT3
= 330μF
V
OUT4
= 5.0V: Q4 = FDV340P, Q5 = FDT459N, C
OUT4
= 220μF
NOTE: Outputs may also require small (1μF) high frequency
capacitors.
C
CT_VID
= 0.1μF
C
SS
= 0.1μF
C5 = 1.0μF
R
DLA
= 1K
R2 = 10K
FIGURE 13. TYPICAL ISL6505 APPLICATION DIAGRAM
ISL6505
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISL6505CB-T 功能描述:IC MULTIPLE POWER CTRLR 20-SOIC RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
ISL6505CR 功能描述:IC MULTIPLE POWER CTRLR 20-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
ISL6505CR-T 功能描述:IC MULTIPLE POWER CTRLR 20-QFN RoHS:否 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
ISL6505CRZ 功能描述:IC PWR SUPPLY CTRLR/MONITR 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
ISL6505CRZ-T 功能描述:IC PWR SUPPLY CTRLR/MONITR 20QFN RoHS:是 類別:集成電路 (IC) >> PMIC - 電源控制器，監(jiān)視器 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:2,500 系列:- 應(yīng)用:多相控制器 輸入電壓:- 電源電壓:9 V ~ 14 V 電流 - 電源:- 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:40-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:40-TQFN-EP（5x5） 包裝:帶卷 (TR)
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