LTC3803-3 LINER [Linear Technology], LTC3803-3 Datasheet - Page 2

• Manufacturer Part Number: LTC3803-3
• Description: Constant Frequency Current Mode Flyback DC/DC Controller in ThinSOT
• Manufacturer: LINER [Linear Technology]

ELECTRICAL CHARACTERISTICS
ABSOLUTE
temperature range, otherwise specifications are at T
LTC3803-3
(Note 1)
V
NGATE Voltage ......................................... – 0.3V to V
V
SENSE Voltage ........................................... – 0.3V to 1V
NGATE Peak Output Current (<10μs) ........................ 1A
Operating Temperature Range (Note 2)
Junction Temperature (Note 3) ............................ 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
*LTC3803-3 internal clamp circuit self regulates V
SYMBOL
V
V
V
V
V
V
I
V
I
V
V
g
ΔV
I
f
2
CC
ITHSTART
FB
OSC
m
TURNON
TURNOFF
HYST
CLAMP1mA
CLAMP25mA
MARGIN
ITHSHDN
FB
IMAX
CC
FB
O(LINE)
Low Impedance Source .......................... – 0.3V to 8V
Current Fed ...................................... 25mA into V
LTC3803E-3 ....................................... – 40°C to 85°C
LTC3803I-3 ...................................... – 40°C to 125°C
, I
to GND
TH
/RUN Voltages ..............................– 0.3V to 3.5V
PARAMETER
V
V
V
V
V
V
Input DC Supply Current
Shutdown Threshold (at I
Start-Up Current Source
Regulated Feedback Voltage (Note 5)
Peak Current Sense Voltage
Error Amplifier Transconductance
Output Voltage Line Regulation
V
Oscillator Frequency
CC
CC
CC
CC
CC
CLAMP1mA
Normal Operation
Start-Up
FB
Input Current
Turn On Voltage
Turn Off Voltage
Hysteresis (V
Shunt Regulator Voltage
Shunt Regulator Voltage
W
MAXIMUM
– V
TURNON
TURNON
W W
Margin
CC
– V
TH
voltage to 9.5V.
/RUN)
TURN0FF
RATINGS
)
U
A
CONDITIONS
LTC3803E-3
LTC3803I-3
I
I
(Note 4)
V
V
V
V
0°C ≤ T
LTC3803E-3: –40°C ≤ T
LTC3803I-3: –40°C ≤ T
R
I
V
(Note 5)
V
CC
CC
TH/RUN
= 25°C. V
ITH/RUN
CC
CC
ITH/RUN
TURNOFF
ITH/RUN
SL
LTC3803E-3
LTC3803I-3
LTC3803E-3
LTC3803I-3
= 1mA, V
= 25mA, V
= V
= V
= 0 (Note 6)
The
TURNON
TURNON
A
Pin Load = ±5μA (Note 5)
CC
= 1.3V
= 0V
= 1.3V
≤ 85°C
< V
CC
●
CC
*
ITH/RUN
CC
indicates specifications which apply over the full operating
ITH/RUN
= 8V, unless otherwise noted. (Note 2)
– 100mV
– 100mV
< V
PACKAGE/ORDER
Consult LTC Marketing for parts specified with wider operating temperature ranges.
CLAMP
Order Options Tape and Reel: Add #TR
Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF
Lead Free Part Marking: http://www.linear.com/leadfree/
= 0V
= 0V
ORDER PART NUMBER
A
A
≤ 125°C
≤ 85°C
(Note 5)
LTC3803ES6-3
LTC3803IS6-3
I
TH
/RUN 1
GND 2
V
T
FB
6-LEAD PLASTIC TSOT-23
JMAX
●
●
●
●
●
●
●
●
●
●
●
●
●
3
= 125°C, θ
S6 PACKAGE
0.788
0.780
0.780
TOP VIEW
0.05
0.15
0.10
MIN
200
270
7.6
4.6
4.4
8.3
8.4
0.2
90
85
1
JA
INFORMATION
= 230°C/W
U
S6 PART MARKING
0.800
0.800
0.800
6 NGATE
5 V
4 SENSE
0.28
0.28
0.05
TYP
240
100
100
333
300
8.7
5.7
5.7
9.4
9.5
0.6
0.3
40
10
3
CC
LTCJS
LTCJT
W
0.812
0.812
0.820
MAX
10.3
10.5
0.45
0.45
350
115
115
500
330
9.2
0.4
90
50
7
7
UNITS
38033fa
U
mV/V
μA/V
kHz
μA
μA
μA
nA
V
V
V
V
V
V
V
V
V
V
V
V
V
V