LTC1693
U
TYPICAL APPLICATION
C7
2.2nF
100V
Isolated Push-Pull DC/DC Converter
R3
1
2
•
•
10Ω
T1A
24T
#32
V
CC
= 5V
•
•
+
1
2
9
8
9
8
C6
330µF
6.3V
T1B
24T
#32
T1E
24T
#28
D1
MBR340
L1
1µH
R1
6.2k
V
= 5V
CC
V
12V
1A
OUT
C3
0.1µF
C4
1µF
+
C9
V
= 5V
•
•
CC
3
4
T1C
24T
#32
T1F
24T
#28
8
LTC1693-2
2
270µF
25V
×3
D2
MBR340
C2
0.1µF
1
3
7
Q1
R2
Si4410
10Ω
10 14 13
3
4
14
T1D
24T
#32
C5
PRESET CLR
13
12
11
12
9
8
2.2nF
100V
×2
74HC14
7
Q
R4
10Ω
74HC74
C8
2.2nF
100V
C1
390pF
D
Q
6
LTC1693-2
4
GND
7
5
Q2
Si4410
T1: PHILIPS CPHS-EFD20-1S-10P
FIRST WIND T1A AND T1C BIFILAR,
THEN WIND T1E AND T1F BIFILAR,
THEN WIND T1B AND T1D BIFILAR
1693 F05a
Efficiency
Output Voltage
100
14
12
V
CC
= 5V
V
CC
= 5V
90
80
70
60
50
40
30
20
10
8
6
4
2
0
0
0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
0
0.3
0.5 0.6 0.7 0.8 0.9 1.0
0.1 0.2
0.4
OUTPUT CURRENT (A)
OUTPUT CURRENT (A)
1693 F05c
1693 F05b
RELATED PARTS
PART NUMBER
DESCRIPTION
COMMENTS
Internal Charge Pump, 4.5V to 48V Supply Range, t = 80µs, t = 28µs
LTC1154
High Side Micropower MOSFET Drivers
ON
OFF
LTC1155
Dual Micropower High/Low Side Drivers with
Internal Charge Pump
4.5V to 18V Supply Range
4.5V to 18V Supply Range
3.3V or 5V Supply Range
LTC1156
Dual Micropower High/Low Side Drivers with
Internal Charge Pump
LTC1157
LT®1160/LT1162
LT1161
3.3V Dual Micropower High/Low Side Driver
Half/Full Bridge N-Channel Power MOSFET Driver
Quad Protected High Side MOSFET Driver
Triple 1.8V to 6V High Side MOSFET Driver
High Power Synchronous DC/DC Controller
Dual Driver with Topside Floating Driver, 10V to 15V Supply Range
8V to 48V Supply Range, t = 200µs, t = 28µs
ON
OFF
LTC1163
LT1339
1.8V to 6V Supply Range, t = 95µs, t = 45µs
ON OFF
Current Mode Operation Up to 60V, Dual N-Channel Synchronous Drive
LTC1435
High Efficiency, Low Noise Current Mode
Step-Down DC/DC Controller
3.5V to 36V Operation with Ultrahigh Efficiency, Dual N-Channel MOSFET
Synchronous Drive
1693fa LT/TP 1000 2K REV A • PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1999
20 LinearTechnology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
●
●
(408)432-1900 FAX:(408)434-0507 www.linear-tech.com
Linear [ Linear ]
