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LTC1693

更新时间： 2023-12-20 18:44:28
品牌 Logo 应用领域
亚德诺 - ADI 驱动驱动器MOSFET驱动器
页数 文件大小 规格书
20页 263K
描述
高速单路 / 双路 N 沟道 MOSFET 驱动器

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LTC1693 数据手册

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LTC1693  
High Speed Single/Dual  
N-Channel MOSFET Drivers  
U
FEATURES  
DESCRIPTIO  
The LTC®1693 family drives power N-channel MOSFETs  
at high speed. The 1.5A peak output current reduces  
switching losses in MOSFETs with high gate capacitance.  
■
Dual MOSFET Drivers in SO-8 Package  
or Single MOSFET Driver in MSOP Package  
■
1GΩ Electrical Isolation Between the Dual Drivers  
Permits High/Low Side Gate Drive  
The LTC1693-1 contains two noninverting drivers while  
the LTC1693-2 contains one noninverting and one invert-  
ing driver. These dual drivers are electrically isolated and  
independent. The LTC1693-3 is a single driver with an  
output polarity select pin.  
■
1.5A Peak Output Current  
■
16ns Rise/Fall Times at VCC = 12V, CL = 1nF  
■
Wide VCC Range: 4.5V to 13.2V  
■
CMOS Compatible Inputs with Hysteresis,  
Input Thresholds are Independent of VCC  
■
■
■
All MOSFET drivers offer VCC independent CMOS input  
thresholds with 1.2V of typical hysteresis. They can level-  
shifttheinputlogicsignalupordowntotherail-to-railVCC  
drive for the external MOSFET.  
Driver Input Can Be Driven Above VCC  
Undervoltage Lockout  
Thermal Shutdown  
U
APPLICATIO S  
TheLTC1693containsanundervoltagelockoutcircuitand  
a thermal shutdown circuit that disable the external  
N-channel MOSFET gate drive when activated.  
■
Power Supplies  
■
High/Low Side Drivers  
■
Motor/Relay Control  
Line Drivers  
Charge Pumps  
TheLTC1693-1andLTC1693-2comeinan8-leadSOpack-  
age. The LTC1693-3 comes in an 8-lead MSOP package.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
■
U
TYPICAL APPLICATION  
Two Transistor Forward Converter  
V
IN  
48VDC  
C1  
330µF  
63V  
C2  
1.5µF  
63V  
+
±10%  
R1  
0.068Ω  
D1  
RETURN  
MURS120  
L1  
1.5µH  
Q1  
T1  
13:2  
MTD20NO6HD  
V
12V  
OUT  
1.5V/15A  
C5  
C3  
4700pF  
25V  
R2  
5.1Ω  
D2  
MURS120  
•
•
C4  
LTC1693CS8-2  
1µF  
1
2
3
4
8
7
6
5
0.1µF  
IN1  
GND1 OUT1  
IN2  
GND2 OUT2  
C7  
V
CC1  
R3  
17  
IN  
249Ω  
D3  
C6  
C11  
0.1µF  
12V  
+
1%  
MURS120  
470µF  
20  
V
CC2  
BOOST  
6.3V  
Q2  
Si4420  
×2  
R4  
C9  
19  
×8  
Q4  
Si4420  
1.24k  
1%  
LT1339  
TG  
1800pF  
5%  
1
2
C8  
1µF  
SYNC  
5V  
Q3  
BAT54  
1µF  
NPO  
18  
11  
12  
16  
14  
13  
9
MTD20NO6HD  
TS  
+
REF  
R5  
2.49k  
1%  
R6 100Ω  
4
RETURN  
SL/ADJ  
SENSE  
R7 100Ω  
D4  
3
–
C
T
SENSE  
MBRO530T1  
LTC1693CS8-2  
1
2
3
4
8
5
IN1  
GND1 OUT1  
IN2  
GND2 OUT2  
V
CC1  
I
BG  
PHASE  
AVG  
R8  
301k  
1%  
7
6
5
6
SS  
7
V
CC2  
V
C
RUN/SHDN  
10  
V
V
FB  
C10  
REF  
SGND PGND  
15  
C12  
100pF  
R9  
12k  
0.1µF  
R10  
10k  
1%  
C13  
1µF  
C1: SANYO 63MV330GX  
C2: WIMA SMD4036/1.5/63/20/TR  
C6: KEMET T510X477M006AS (×8)  
L1: GOWANDA 50-318  
8
C14  
3300pF  
C15  
0.1µF  
T1: GOWANDA 50-319  
1693 TA01  
1
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