LTC3803-5_15 Datasheet, PDF (2/16 Pages) Linear Technology – Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT

LTC3803-5
ABSOLUTE MAXIMUM RATINGS
(Note 1)
V_CC to GND (Current Fed) ..................... 25mA into V_CC*
NGATE Voltage.......................................... – 0.3V to V_CC
V_FB, I_TH/RUN Voltages............................... –0.3V to 3.5V
SENSE Voltage ............................................ –0.3V to 1V
NGATE Peak Output Current (<10μs) ......................... 1A
Operating Junction Temperature Range (Notes 2, 3)
LTC3803E-5 .......................................– 40°C to 125°C
LTC3803I-5 ........................................– 40°C to 125°C
LTC3803H-5 (Note 3)......................... –40°C to 150°C
LTC3803MP-5 (Note 3)...................... –55°C to 150°C
Storage Temperature Range...................– 65°C to 150°C
Lead Temperature (Soldering, 10 sec) .................. 300°C
*LTC3803-5 internal clamp circuit self regulates V_CC voltage to 8.1V.
PIN CONFIGURATION
TOP VIEW
I_TH/RUN 1
GND 2
V_FB 3
6 NGATE
5 V_CC
4 SENSE
S6 PACKAGE
6-LEAD PLASTIC TSOT-23
T_JMAX = 150°C, θ_JA = 192°C/W
ORDER INFORMATION
LEAD FREE FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3803ES6-5#PBF
LTC3803ES6-5#TRPBF
LTBPF
6-Lead Low Profile (1mm) SOT-23
–40°C to 125°C
LTC3803IS6-5#PBF
LTC3803IS6-5#TRPBF
LTBMH
6-Lead Low Profile (1mm) SOT-23
–40°C to 125°C
LTC3803HS6-5#PBF
LTC3803HS6-5#TRPBF
LTBMH
6-Lead Low Profile (1mm) SOT-23
–40°C to 150°C
LTC3803MPS6-5#PBF LTC3803MPS6-5#TRPBF LTBMH
6-Lead Low Profile (1mm) SOT-23
–55°C to 150°C
LEAD BASED FINISH
TAPE AND REEL
PART MARKING* PACKAGE DESCRIPTION
TEMPERATURE RANGE
LTC3803ES6-5
LTC3803ES6-5#TR
LTBPF
6-Lead Low Profile (1mm) SOT-23
–40°C to 125°C
LTC3803IS6-5
LTC3803IS6-5#TR
LTBMH
6-Lead Low Profile (1mm) SOT-23
–40°C to 125°C
LTC3803HS6-5
LTC3803HS6-5#TR
LTBMH
6-Lead Low Profile (1mm) SOT-23
–40°C to 150°C
LTC3803MPS6-5
LTC3803MPS6-5#TR
LTBMH
6-Lead Low Profile (1mm) SOT-23
–55°C to 150°C
Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
junction temperature range, otherwise specifications are at T_A = 25°C. V_CC = 5V, unless otherwise noted. (Notes 2, 3)
SYMBOL
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
V_TURNON
V_CC Turn On Voltage
LTC3803E-5
l
4
4.8
5.7
V
LTC3803I-5, LTC3803H-5, LTC3803MP-5 l 3.9
4.8
5.7
V
V_TURNOFF
V_CC Turn Off Voltage
LTC3803E-5
l 3.3
4
4.9
V
LTC3803I-5, LTC3803H-5, LTC3803MP-5 l 3.2
4
4.9
V
V_HYST
V_CC Hysteresis
V_TURNON – V_TURNOFF
l 0.05
0.8
V
V_CLAMP1mA
V_CC Shunt Regulator Voltage at 1mA
I_CC = 1mA, V_ITH/RUN = 0V
LTC3803E-5
LTC3803I-5, LTC3803H-5
LTC3803MP-5
l 6.2
8
9.9
V
l 6.2
8
10.4
V
l 5.9
8
10.4
V
38035fd
2