OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

LTC3805EDD#TRPBF

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
LTC3805
19
3805fg
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa-
tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
revision history
REV DATE DESCRIPTION PAGE NUMBER
E 04/10 Changes to Typical Application
Updates to Absolute Maximum Ratings
Changes to Electrical Characteristics Tables
Updates to Note 2
Update to Pin 11 in Pin Functions
Edits to Start-Up/Shutdown in Operation Section
Updated Related Parts Table
1, 17
2
3
4
7
9
20
F 05/11 Added MP-grade part. Reflected throughout the data sheet 1-20
G 02/12 V
CLAMP1mA
comments changed from I
CC
= 1mA to V
CC
Sinking 1mA
V
CLAMP25mA
comments changed from I
CC
= 25mA to V
CC
Sinking 25mA
V
RUNON
comments changed from V
CC
= V
TURNON
+ 100mA to V
CC
Sinking 1mA
V
RUNOFF
comments changed from V
CC
= V
TURNON
+ 100mA to V
CC
Sinking 1mA
3
3
3
3
(Revision history begins at Rev E)
LTC3805
20
3805fg
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
l
FAX: (408) 434-0507
l
www.linear.com
LINEAR TECHNOLOGY CORPORATION 2006
LT 0212 REV G • PRINTED IN USA
relateD parts
typical application
R20
118k
R19
3.01k
C17
10µF
NOTE: CAN ALSO USE NPN PREREGULATOR AS SHOWN IN FIGURE 9
C01
100µF
6.3V
R12
42.2k
C18
330pF
C23, 0.1µF
D1
UPS840
D4
BAS516
Q1
FDC2512
T1
PA1861NL
V
IN
V
CC
R16, 1.33k
R8
8.66k
R5
221k
11
5
4
3
2
1
6
7
8
5
1
4
2
3
10
8
7
9
9
10
R6
220Ω
C16
150pF
200V
3805 TA03a
C
IN1
2.2µF
100V
V
IN
+
36V TO 72V
V
IN
–
U1
LTC3805EMSE
I
TH
GND
SSFLT
RUN
GATE
OC
I
SENSE
SYNCFS
FB
V
CC
C02
100µF
6.3V
C03
100µF
6.3V
R
CS
0.068Ω
V
OUT
+
3.3V
3A
V
OUT
–
+V
OUT
C26
470pF
C25
100pF
R24
20k
R30
51Ω
R14
13.7k
R23
100k
C
IN2
2.2µF
100V
Figure 10. Low Power Nonisolated Telecom Supply with Trickle Charger
LOAD CURRENT (A)
0.01
0
EFFICIENCY (%)
POWER LOSS (W)
20
30
40
50
60
70
0.1
1
3805 TA03b
80
90
100
0
1
10
10
10
36V
48V
60V
72V
V
IN
Efficiency and Power Loss
vs Load Current and V
IN
; V
O
= 3.3V
PART NUMBER DESCRIPTION COMMENTS
LT3798 Isolated No Opto-Coupler Flyback Controller with
Active PFC
V
IN
and V
OUT
Limited by External Components
LT3748 100V No-Opto Flyback Controller 5V ≤ V
IN
≤ 100V, Boundary Mode Operation, MSOP-16 with Extra High
Voltage Pin Spacing
LT3758 Boost, Flyback, SEPIC and Inverting Controller 5.5V ≤ V
IN
≤ 100V, 100kHz to 1MHz Programmable Operating Frequency,
3mm × 3mm DFN-10 and MSOP-10E
LT3575 No-Opto Isolated Flyback with 60V Integrated Switch 3V ≤ V
IN
≤ 40V, Up to 14W, Boundary Mode Operation, TSSOP-16E
LTC3803/LTC3803-3/
LTC3803-5
Flyback DC/DC Controller with Fixed 200kHz or
300kHz Operating Frequency
V
IN
and V
OUT
Limited Only by External Components, 6-Pin ThinSOT Package
LTC3873/LTC3873-5 No R
SENSE
Constant Frequency Flyback, Boost,
SEPIC Controller
V
IN
and V
OUT
Limited Only by External Components, 8-Pin ThinSOT or
2mm × 3mm DFN-8 Packages
LT3825 No-Opto Isolated Synchronous Flyback Controller V
IN
16V to 75V Limited by External Components, Up to 60W, TSSOP-16E
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

LTC3805EDD#TRPBF

Mfr. #:
Buy LTC3805EDD#TRPBF
Manufacturer:
Analog Devices / Linear Technology
Description:
Switching Voltage Regulators Programmable Frequency Current Mode Flyback Controller
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet