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參數(shù)資料
| 型號(hào)： | LNK302D-TL |
| 廠商： | POWER INTEGRATIONS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 0.2 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8 |
| 封裝： | PLASTIC, SOP-8 |
| 文件頁(yè)數(shù)： | 16/20頁(yè) |
| 文件大?。?/td> | 706K |
| 代理商： | LNK302D-TL |
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2-5
LNK302/304-306
5
Rev. I 11/08
Figure 6a. Recommended Printed Circuit Layout for LinkSwitch-TN in a Buck Converter Conguration using P or G Package.
cycles are skipped. To provide overload protection if no cycles
are skipped during a 50 ms period, LinkSwitch-TN will enter
auto-restart (LNK304-306), limiting the average output power
to approximately 6% of the maximum overload power. Due to
tracking errors between the output voltage and the voltage across
C3 at light load or no load, a small pre-load may be required
(R4). For the design in Figure 5, if regulation to zero load is
required, then this value should be reduced to 2.4 k
Ω.
Key Application Considerations
LinkSwitch-TN Design Considerations
Output Current Table
Data sheet maximum output current table (Table 1) represents
the maximum practical continuous output current for both
mostlydiscontinuousconductionmode(MDCM)andcontinuous
conduction mode (CCM) of operation that can be delivered from
a given LinkSwitch-TN device under the following assumed
conditions:
1) Buck converter topology.
2) The minimum DC input voltage is ≥70 V. The value of
input capacitance should be large enough to meet this
criterion.
3) For CCM operation a KRP* of 0.4.
4) Output voltage of 12 VDC.
5) Efciency of 75%.
6) A catch/freewheeling diode with t
rr ≤75 ns is used for
MDCM operation and for CCM operation, a diode with
t
rr ≤35 ns is used.
7) The part is board mounted with SOURCE pins soldered
to a sufcient area of copper to keep the SOURCE pin
temperature at or below 100
°C.
*KRP is the ratio of ripple to peak inductor current.
LinkSwitch-TN Selection and Selection Between
MDCM and CCM Operation
Select the LinkSwitch-TN device, freewheeling diode and output
inductor that gives the lowest overall cost. In general, MDCM
+
PI-3750-121106
C2
L1
L2
R1
R3
RF1
D3
D4
D2
D1
C1
C3
C5
C4
Optimize hatched copper areas (
) for heatsinking and EMI.
D
S
FB
BP
S
LinkSwitch-TN
AC
INPUT
DC
OUTPUT
Figure 6b. Recommended Printed Circuit Layout for LinkSwitch-TN in a Buck Converter Conguration using D Package
to Bottom Side of the Board.
AC
INPUT
+
DC
OUTPUT
PI-4546-011807
Optimize hatched copper areas (
) for heatsinking and EMI.
S
BP
FB
D1
C2
R3
RF1
D3
D4
D2
R1
C1
C4
C5
C3
LinkSwitch-TN
L2
L1
D
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| LNK305DG | 0.8 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8 |
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| LNK306D-TL | 1.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8 |
| LNK306D | 1.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8 |
| LNK306DG-TL | 1.4 A SWITCHING REGULATOR, 70 kHz SWITCHING FREQ-MAX, PDSO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LNK302G | 功能描述:IC OFFLINE SWIT OCP 8SMD RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:LinkSwitch®-TN 標(biāo)準(zhǔn)包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
| LNK302GN | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 63mA MDCM 80mA CCM RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| LNK302GNTL | 制造商:POWERINT 制造商全稱:Power Integrations, Inc. 功能描述:LinkSwitch-TN Family Lowest Component Count, Energy-Effi cient Off-Line Switcher IC |
| LNK302GN-TL | 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 63mA MDCM 80mA CCM RoHS:否 制造商:STMicroelectronics 輸出電壓:800 V 輸入/電源電壓（最大值）:23.5 V 輸入/電源電壓（最小值）:11.5 V 開關(guān)頻率:115 kHz 電源電流:1.6 mA 工作溫度范圍:- 40 C to + 150 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SSO-10 封裝:Reel |
| LNK302G-TL | 功能描述:IC OFFLINE SWIT OCP 8SMD RoHS:否 類別:集成電路 (IC) >> PMIC - AC-DC 轉(zhuǎn)換器，離線開關(guān) 系列:LinkSwitch®-TN 標(biāo)準(zhǔn)包裝:1 系列:FPS™ 輸出隔離:隔離 頻率范圍:61kHz ~ 73kHz 輸入電壓:8 V ~ 26 V 輸出電壓:650V 功率（瓦特）:12W 工作溫度:-40°C ~ 115°C 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-MDIP 包裝:Digi-Reel® 其它名稱:FSL206MRBNFSDKR |
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