LTC3805 Linear Technology, LTC3805 Datasheet - Page 2

• Manufacturer Part Number: LTC3805
• Description: Adjustable Frequency Current Mode Flyback DC/DC Controller
• Manufacturer: Linear Technology

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ABSOLUTE MAXIMUM RATINGS
PIN CONFIGURATION
ELECTRICAL CHARACTERISTICS
LTC3805
(Note 1)
V
SYNC ........................................................... –0.3V to 6V
SSFLT ........................................................... –0.3V to 5V
FB, I
RUN ........................................................... –0.3V to 18V
ORDER INFORMATION
LEAD FREE FINISH
LTC3805EDD#PBF
LTC3805EMSE#PBF
LEAD BASED FINISH
LTC3805EDD
LTC3805EMSE
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
temperature range, otherwise specifi cations are at T
SYMBOL
V
V
V
V
V
2
TURNON
TURNOFF
HYST
CLAMP1mA
CLAMP25mA
CC
Low Impedance Source ........................ –0.3V to 8.8V
Current Fed ........................................25mA into V
to GND
TH
, FS ................................................. –0.3V to 3.5V
EXPOSED PAD (PIN 11) IS GND, MUST BE CONNECTED TO GND
SSFLT
PARAMETER
V
V
V
V
V
10-LEAD (3mm × 3mm) PLASTIC DFN
RUN
CC
CC
CC
CC
CC
I
FB
FS
TH
Turn-On Voltage
Turn-Off Voltage
Hysteresis
Shunt Regulator Voltage
Shunt Regulator Voltage
T
JMAX
1
2
3
4
5
TAPE AND REEL
LTC3805EDD#TRPBF
LTC3805EMSE#TRPBF
TAPE AND REEL
LTC3805EDD#TR
LTC3805EMSE#TR
= 125°C, θ
DD PACKAGE
TOP VIEW
11
JA
= 45°C/W
10
9
8
7
6
GATE
V
OC
I
SYNC
SENSE
CC
http://www.linear.com/leadfree/
PART MARKING
LCJM
LTCJK
PART MARKING
LCJM
LTCJK
http://www.linear.com/tapeandreel/
A
= 25°C, V
CONDITIONS
I
I
CC
CC
= 1mA, V
= 25mA, V
The
CC
●
*
CC
denotes the specifi cations which apply over the full operating
RUN
= 8V, unless otherwise noted (Note 2).
RUN
OC, I
Operating Ambient Temperature Range ...–40°C to 85°C
Operating Junction Temperature ........................... 125°C
Storage Temperature Range ...................–65°C to 125°C
Lead Temperature (Soldering, 10 sec)
*LTC3805 internal clamp circuit regulates V
= 0
= 0
LTC3805EMSE Only .......................................... 300°C
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
PACKAGE DESCRIPTION
10-Lead (3mm × 3mm) Plastic DFN
10-Lead Plastic MSOP
SENSE
EXPOSED PAD (PIN 11) IS GND, MUST BE CONNECTED TO GND
.................................................... –0.3V to 1V
SSFLT
RUN
I
TH
FB
FS
T
10-LEAD PLASTIC MSOP
JMAX
1
2
3
4
5
MSE PACKAGE
= 125°C, θ
●
●
●
●
TOP VIEW
11
MIN
3.75
8.8
8.9
JA
8
= 45°C/W
CC
10
9
8
7
6
voltage to 9.5V
3.95
9.25
TYP
8.4
4.5
9.5
GATE
V
OC
I
SYNC
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
TEMPERATURE RANGE
–40°C to 85°C
–40°C to 85°C
SENSE
CC
MAX
4.15
9.65
9.9
9
UNITS
3805fb
V
V
V
V
V