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MAX17606

更新时间： 2023-12-20 18:46:18
品牌 Logo 应用领域
亚德诺 - ADI 驱动驱动器MOSFET驱动器转换器
页数 文件大小 规格书
12页 500K
描述
副边同步MOSFET驱动器，用于反激转换器

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中文翻译

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MAX17606 数据手册

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MAX17606  
Secondary-Side Synchronous MOSFET Driver  
for Flyback Converters  
General Description  
Benefits and Features  
● Wide 4.5V to 36V Input  
● 2A/4A Peak Source/Sink Gate Drive Currents  
● Suitable for Discontinuous Conduction Mode (DCM),  
Border Conduction Mode (BCM)  
● 320µA (typ) Low Quiescent Current  
● Programmable Turn-Off Trip Point  
The MAX17606 is a secondary-side synchronous driver  
and controller specifically designed for the isolated flyback  
topology operating in Discontinuous Conduction Mode  
(DCM) or Border Conduction Mode (BCM). By replacing  
the secondary diode with a MOSFET, the device improves  
the efficiency and simplifies thermal management. The  
7V V  
of the device makes it suitable for switching  
DRV  
● Programmable Minimum Off-Time to Handle DCM  
both logic-level and standard MOSFETs used for flyback  
synchronous rectification. The 36V input voltage allows  
it to drive from either the output voltage or rectified drain  
voltage of the secondary MOSFET. Programmable minimum  
on and off-times provide flexibility needed to handle  
transformer parasitic element-related ringing in a robust  
manner. With 2A/4A source/sink currents, the MAX17606  
Ringing  
● Thermal-Shutdown Protection  
● 6-Lead SOT-23 Package  
Applications  
● High-Efficiency Isolated Flyback Converters  
is ideal for driving low R  
gate transition times.  
power MOSFETs with fast  
DS(on)  
Ordering Information appears at end of data sheet.  
Typical Application Circuit for 24V to 5V, 3A Isolated Flyback Converter  
V
V
IN  
OUT  
T1  
5V,3A  
C1  
4.7µF  
x4  
C9  
100µF  
6x  
C4  
1nF  
C2  
0.1µF  
IN  
R9  
4.7Ω  
PGND  
R5  
47Ω  
D1  
0
SS  
RT  
U1  
C10  
2.2µF  
MAX17597  
R10  
2.74kΩ  
R1  
49.9kΩ  
V
IN  
0
DRN  
Q1  
N
DRV  
CS  
T
OFF  
R6  
220Ω  
Q2  
R14  
100kΩ  
GATE  
U2  
V
IN  
C7  
2.2µF  
MAX17606  
C5  
R7  
0.02Ω  
GND  
1nF  
EN/UVLO  
V
DRV  
0
0
DITHER  
OVI  
V
R11  
470Ω  
OUT  
U3  
4
3
1
2
V
SGND  
EP  
DRV  
FB  
R12  
1.5kΩ  
C8  
0.22µF  
C6  
2.2µF  
COMP  
R4  
22kΩ  
R2  
49.9kΩ  
U4  
R13  
487Ω  
C3  
22nF  
R3  
10.5kΩ  
R8  
470kΩ  
T1-WE750342955  
Q1-FDMS86102LZ  
Q2-BSZ040N04LSG  
0
19-7758; Rev 0; 10/15  
1234567...12

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