20
LTC1693
LINEAR TECHNOLOGY CORPORATION 1999
1693fa LT/TP 1000 2K REV A • PRINTED IN USA
PART NUMBER DESCRIPTION COMMENTS
LTC1154 High Side Micropower MOSFET Drivers Internal Charge Pump, 4.5V to 48V Supply Range, t
ON
= 80µs, t
OFF
= 28µs
LTC1155 Dual Micropower High/Low Side Drivers with 4.5V to 18V Supply Range
Internal Charge Pump
LTC1156 Dual Micropower High/Low Side Drivers with 4.5V to 18V Supply Range
Internal Charge Pump
LTC1157 3.3V Dual Micropower High/Low Side Driver 3.3V or 5V Supply Range
LT
®
1160/LT1162 Half/Full Bridge N-Channel Power MOSFET Driver Dual Driver with Topside Floating Driver, 10V to 15V Supply Range
LT1161 Quad Protected High Side MOSFET Driver 8V to 48V Supply Range, t
ON
= 200µs, t
OFF
= 28µs
LTC1163 Triple 1.8V to 6V High Side MOSFET Driver 1.8V to 6V Supply Range, t
ON
= 95µs, t
OFF
= 45µs
LT1339 High Power Synchronous DC/DC Controller Current Mode Operation Up to 60V, Dual N-Channel Synchronous Drive
LTC1435 High Efficiency, Low Noise Current Mode 3.5V to 36V Operation with Ultrahigh Efficiency, Dual N-Channel MOSFET
Step-Down DC/DC Controller Synchronous Drive
RELATED PARTS
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
●
FAX: (408) 434-0507
●
www.linear-tech.com
Isolated Push-Pull DC/DC Converter
OUTPUT CURRENT (A)
0
0
OUTPUT VOLTAGE (V)
2
6
8
10
14
0.1
0.5
0.7
1693 F05b
4
12
0.4
0.9
1.0
0.2
0.3
0.6 0.8
V
CC
= 5V
OUTPUT CURRENT (A)
0
EFFICIENCY (%)
100
90
80
70
60
50
40
30
20
0.8
1693 F05c
0.2 0.4 0.6 1.00.70.1 0.3 0.5 0.9
V
CC
= 5V
Output Voltage
Efficiency
TYPICAL APPLICATION
U
74HC14
V
CC
= 5V
V
CC
= 5V
14
C2
0.1µF
C1
390pF
C3
0.1µF
C4
1µF
R1
6.2k
7
1213
LTC1693-2
6
4
T1: PHILIPS CPHS-EFD20-1S-10P
FIRST WIND T1A AND T1C BIFILAR,
THEN WIND T1E AND T1F BIFILAR,
THEN WIND T1B AND T1D BIFILAR
5
1693 F05a
3
LTC1693-2
8
2
Q1
Si4410
R2
10Ω
T1A
24T
#32
V
OUT
12V
1A
C5
2.2nF
100V
×2
Q2
Si4410
7
V
CC
= 5V
•
•
•
1
74HC74
PRESET CLR
GND
D
7
8
9
14 1310
12
11
Q
Q
C6
330µF
6.3V
C9
270µF
25V
×3
R3
10Ω
D1
MBR340
C7
2.2nF
100V
R4
10Ω
C8
2.2nF
100V
D2
MBR340
L1
1µH
+
+
2
1
T1D
24T
#32
•
4
3
T1B
24T
#32
T1E
24T
#28
•
2
1
8
9
T1F
24T
#28
8
9
T1C
24T
#32
•
4
3