参数资料
型号: LTC3806EDE#TR
厂商: Linear Technology
文件页数: 20/20页
文件大小: 0K
描述: IC REG CTRLR FLYBACK PWM 12-DFN
标准包装: 2,500
PWM 型: 电流模式
输出数: 1
频率 - 最大: 290kHz
占空比: 94%
电源电压: 10 V ~ 75 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 12-WFDFN 裸露焊盘
包装: 带卷 (TR)
LTC3806
TYPICAL APPLICATIO
V OUT
12V
V IN
25V TO 60V
L1
3.3 μ H
D1
1N4148W
SOD123
T1
XFMR EFD20
D2
1A 60V
B260A SMA
C4
10 μ F
1812
400mA
GND
+
C1
10 μ F
63V
ELEC
C2
220nF
1206
C3
2.2 μ F
100V
1812
12
11
7
6
10
8
C5
47 μ F
1812
GND
V OUT
5V
400mA
R1
232k
0805
R2
47k
0805
1
2
3
5
9
4
+
C6
470 μ F
4V POSCAP
7343
C7
100 μ F
1210
V OUT
3.3V
3A
GND
R4
C14
100 μ F
0603
C15
C12
D3
20V
225mW
R3
12.4k
0603
+
C9
33k 100pF C8
0603 0603 1nF
0603
C13
220nF
35V TANT
7343
1
2
3
4
5
6
LTC3806
RUN SENSE
I TH NC
FB SS
NC G1
V IN G2
INTV CC GND
GND
13
4.7 μ F
12
11 220nF
0603
10
9
8
7
R7
Q1
Si4490
R5
0.033 Ω
1206
Q2
Si7806DN
Q3
Si7806DN
Q4
Si7806DN
+
C10
470 μ F
4V POSCAP
7343
C11
100 μ F
1210
V OUT
2.5V
2A
10V
0805
20.5k
0603
3806 F08
FB
R6
12.4k
0603
Figure 8. Mulitple Output Flyback Converter for Telecom
RELATED PARTS
LT 1619
PART NUMBER
?
LTC1700
LT1725
LTC1871
LTC1872
LT1910
LT1930
LT1931
LT1950/LT1952
LTC3401/LTC3402
LTC3705/LTC3706
LTC3725/LTC3726
LTC3724
LTC3803
DESCRIPTION
Current Mode PWM Controller
No R SENSE TM Synchronous Step-Up Controller
General Purpose Isolated Flyback Controller
Wide Input Range Current Mode No R SENSE Controller
SOT-23 Boost Controller
Protected High Side MOSFET Driver
1.2MHz SOT-23 Boost Converter
Inverting 1.2MHz, SOT-23 Converter
Single Switch Forward Controller
1A/2A, 3MHz Synchronous Boost Converters
Isolated DC/DC Power Supply Chipset
Current Mode DC/DC Controller
SOT-23 Flyback Contoller
COMMENTS
300kHz Fixed Frequency, Boost, SEPIC Flyback Topology
Up to 95% Efficiency, Operation as Low as 0.9V Input
Drives External Power MOSFET, Senses Output Voltage Directly from
Primary Side Switching—No Optoisolator Required, 16-Pin SSOP
50kHz to 1000kHz Frequency; Boost, Flyback and SEPIC Topology
Delivers Up to 5A, 550kHz Fixed Frequency, Current Mode
8V to 48V Power Supply Range; Protected from –15V to 60V Supply
Transients, Short-Circuit Protection, Automatic Restart Timer
Up to 34V Output, 2.6V ≤ V IN ≤ 16V, Miniature Design
Positive-to-Negative DC/DC Conversion, Miniature Design
3V ≤ V IN ≤ 25V, 25W to 500W, Programmable Slope Compensation
Up to 97% Efficiency, Very Small Solution, 0.5V ≤ V IN ≤ 5V
Minimum Parts Count Primary and Secondary Side Controllers,
PolyPhase ? Operation, Simple Design
300kHz Operating Frequency; Buck, Boost, SEPIC Design;
V IN Up to 60V
Adjustable Slope Compensation, Internal Soft-Start, 200kHz
PolyPhase is a registered trademark of Linear Technology Corporation. No R SENSE is a trademark of Linear Technology Corporation.
3806fb
(408) 432-1900 ● FAX: (408) 434-0507 www.linear.com
20
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
LT 0907 REV B ? PRINTED IN THE USA
? LINEAR TECHNOLOGY CORPORATION 2004
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