參數(shù)資料
型號(hào): LT3581IMSE#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: SWITCHING REGULATOR, PDSO16
封裝: LEAD FREE, PLASTIC, MSOP-16
文件頁(yè)數(shù): 22/36頁(yè)
文件大小: 498K
代理商: LT3581IMSE#PBF
LT3581
3581f
High Efficiency, VFD (Vacuum Fluorescent Display) Power Supply Switches at 2MHz to Avoid AM Band
Typical applicaTions
VIN
9V TO 16V
VIN
VOUT2
97V
90mA (VIN = 9V)
140mA (VIN = 12V)
180mA (VIN = 16V)
VOUT1
65V
60mA (VIN = 9V)
70mA (VIN = 12V)
90mA (VIN = 16V)
24k
C2
2.2F
L1
10H
C5
2.2F
C4
2.2F
0.47F
43.2k
100pF
1nF
100k
C1
2.2F
365k
D3
D2
D1
D7
D9*
10V
D4
D5
D6
10k
32.6k
SW1 SW2
FB
VC
SS
GND
SYNC
GATE
CLKOUT
VIN
RT
FAULT
SHDN
LT3581
3581 TA04a
8.06k
C6
2.2F
C7
2.2F
C3
2.2F
D8*
M1*
C1: 2.2F, 25V, X7R, 1206
C2 TO C7: 2.2F, 50V, X7R, 1206
D1 TO D7: CENTRAL SEMI SOD123F
D8: CENTRAL SEMI CMDSH-3TR
D9: CENTRAL SEMI CMHZ5240B-LTZ
L1: TAIYO YUDEN NR6045T100M
M1: VISHAY SILICONIX SI7611DN
*OPTIONAL,
FOR OUTPUT SHORT-CIRCUIT
PROTECTION
DANGER HIGH VOLTAGE! OPERATION BY HIGH VOLTAGE TRAINED PERSONNEL ONLY
Transient Response with 60mA to 140mA to 60mA
Load Step on VOUT2 (VIN = 12V)
VOUT
AC-COUPLED
2V/DIV
ILOAD
0.1A/DIV
IL
0.5A/DIV
3581 TA04b
100s/DIV
Start-Up Waveforms
VOUT2
50V/DIV
VOUT1
50V/DIV
VSS
1V/DIV
IL
0.5A/DIV
3581 TA04c
100ms/DIV
Efficiency and Power Loss at VIN = 12V
TOTAL OUTPUT POWER (W)
0
70
EFFICIENCY
(%)
POWER
LOSS
(mW)
75
8
90
3581 TA04d
4
20
16
12
80
85
1.0
3.0
1.5
2.0
2.5
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