參數(shù)資料
型號(hào): LNK615GG-TL
廠商: POWER INTEGRATIONS INC
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDIP8
封裝: GREEN, PLASTIC, SMD-8
文件頁數(shù): 18/20頁
文件大小: 727K
代理商: LNK615GG-TL
Rev. C 05/08
7
LNK603-606/613-616
www.powerint.com
PI-5093-041408
An overshoot
is acceptable
PI-5094-042408
Negative ring may
increase output
ripple and/or
degrade output
regulation
Figure 6.
Desired Drain Voltage Waveform with Minimal Leakage
Ringing Undershoot.
Figure 7.
Undesirable Drain Voltage Waveform with Large Leakage
Ring Undershoot.
the BP pin voltage. The parameters I
S2 and VBP are provided in
the parameter table of the LinkSwitch-II datasheet. Diode D6
can be any low cost diode such as FR102, 1N4148 or
BAV19/20/21.
Quick Design Checklist
As with any power supply design, all LinkSwitch-II designs
should be veried on the bench to make sure that component
specications are not exceeded under worst-case conditions.
The following minimum set of tests is strongly recommended:
Maximum drain voltage – Verify that peak V
DS does not exceed
680 V at the highest input voltage and maximum output power.
Maximum drain current – At maximum ambient temperature,
maximum input voltage and maximum output load, verify
drain current waveforms at start-up for any signs of trans-
1.
2.
PI-5116-050808
D
S
FB
BP
R2
470 k
1 k
R3
300
R5
13 k
1%
R6
9.31 k
1%
D5
1N4007
D7
SL13
TI
EE13
510
8
2
4
NC
3
C7
470 F
10 V
C1
4.7 F
400 V
C2
4.7 F
400 V
C4
1 F
50 V
L1
1 mH
C3
820 pF
1 kV
AC
Input
DC
Output
U1
LNK613DG
LinkSwitch-II
RF1
8.2
2 W
D1
1N4007
D2
1N4007
D3
1N4007
D4
1N4007
former saturation and excessive leading edge current spikes.
LinkSwitch-II has a leading edge blanking time of 170 ns to
prevent premature termination of the ON-cycle.
Thermal check – At maximum output power, both minimum
and maximum input voltage and maximum ambient tempera-
ture; verify that temperature specications are not exceeded
for LinkSwitch-II, transformer, output diodes and output
capacitors. Enough thermal margin should be allowed for
part-to-part variation of the R
DS(ON) of LinkSwitch-II, as
specied in the data sheet. To assure 10% CC tolerance a
maximum source pin temperature of 90 C is recommended.
Design Tools
Up-to-date information on design tools can be found at the
Power Integrations web site: www.powerint.com
3.
Figure 8.
LinkSwitch-II Flyback Power Supply Without Bias Supply.
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PDF描述
LNK615GG SWITCHING REGULATOR, PDIP8
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LNK616DG-TL 功能描述:交流/直流開關(guān)轉(zhuǎn)換器 5.5 W (85-265 VAC) 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
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