LTC1698 LINER [Linear Technology], LTC1698 Datasheet - Page 24

• Manufacturer Part Number: LTC1698
• Description: Isolated Secondary Synchronous Rectifier Controller
• Manufacturer: LINER [Linear Technology]

RELATED PARTS
PART NUMBER
LT1339
LT1425
LT1431
LT1680
LT1681
LT1725
LT1737
LT3710
LT3781
LTC1698
24
TYPICAL APPLICATIO S
LT3781/LTC1698 Isolated 3.3V/15A Converter
LT3781/LTC1698 Isolated 3.3V/15A Converter
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone]
DESCRIPTION
High Power Synchronous DC/DC Controller
Isolated Flyback Switching Regulator
Programmable Reference
High Power DC/DC Step-Up Controller
Dual Transistor Synchronous Forward Controller
General Purpose Isolated Flyback Controller
High Power Isolated Flyback Controller
Secondary Side Synchronous Post Regulator
Dual Transistor Synchronous Forward Controller
BOTTOM
TOP
U
www.linear.com
COMMENTS
Operation Up to 60V Maximum
General Purpose with External Application Resistor
0.4% Initial Voltage Tolerance
Operation Up to 60V Maximum
Operation Up to 72V Maximum
Drives External Power MOSFET with External I
Sense Output Voltage Directly from Primary-Side Winding
Generates a Regulated Auxiliary Output in Isolated DC/DC Converters, Dual
N-Channel MOSFET Synchronous Drivers
Operation up to 72V Maximum
LT3781/LTC1698 Isolated 3.3V/15A Converter
LT3781/LTC1698 Isolated 5V/30A Converter
95
90
85
80
75
70
65
95
90
85
80
75
70
0
0
V
IN
Efficiency vs Load Current
Efficiency vs Load Current
V
= 36V
5
IN
V
3
= 72V
IN
LOAD CURRENT (A)
= 72V
10
V
6
I
IN
OUT
15
= 48V
V
(XX)
LINEAR TECHNOLOGY CORPORATION 2000
IN
V
= 36V
9
IN
20
LT/TP 0203 2K • PRINTED IN THE USA
= 48V
SENSE
12
25
1698 TA01
1698 TA02
Resistor
30
15
1698f