LTC3803ES6-3#TRMPBF Linear Technology, LTC3803ES6-3#TRMPBF Datasheet - Page 3

• Manufacturer Part Number: LTC3803ES6-3#TRMPBF
• Description: IC FLYBACK SYNC ADJ 1A TSOT23-6
• Manufacturer: Linear Technology
• Type: Flybackr

Specifications of LTC3803ES6-3#TRMPBF

• Internal Switch(s): No
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: Adjustable
• Current - Output: 1A
• Frequency - Switching: 300kHz
• Voltage - Input: Adjustable
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: TSOT-23-6, TSOT-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -

ELECTRICAL CHARACTERISTICS
SYMBOL
V
V
I
V
I
V
V
g
ΔV
I
f
DC
DC
t
t
I
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC3803-3 is tested under pulsed load conditions such
that T
from 0°C to 85°C junction temperature. Specifi cations over the –40°C
to 125°C operating junction temperature range are assured by design,
characterization and correlation with statistical process controls. The
LTC3803I-3 is guaranteed over the –40°C to 125°C operating junction
temperature range, the LTC3803H-3 is guaranteed over the –40°C to
150°C operating junction temperature range and the LTC3803MP-3 is
tested and guaranteed over the full –55°C to 150°C operating junction
temperature range. High junction temperatures degrade operating
lifetimes; operating lifetime is derated for junction temperatures greater
than 125°C. Note that the maximum ambient temperature consistent with
these specifi cations is determined by specifi c operating conditions in
junction temperature range, otherwise specifi cations are at T
CC
ITHSTART
FB
OSC
RISE
FALL
SLMAX
SFST
m
CLAMP25mA
MARGIN
ITHSHDN
FB
IMAX
O(LINE)
ON(MIN)
ON(MAX)
J
≈ T
A
. The LTC3803E-3 is guaranteed to meet specifi cations
PARAMETER
V
V
Input DC Supply Current
Shutdown Threshold (at I
Start-Up Current Source
Regulated Feedback Voltage
Peak Current Sense Voltage
Error Amplifi er Transconductance
Output Voltage Line Regulation
V
Oscillator Frequency
Minimum Switch On Duty Cycle
Maximum Switch On Duty Cycle
Gate Drive Rise Time
Gate Drive Fall Time
Peak Slope Compensation Output Current (Note 7)
Soft-Start Time
CC
CLAMP1mA
FB
Normal Operation
Start-Up
Input Current
Shunt Regulator Voltage
– V
TURNON
Margin
TH
/RUN)
CONDITIONS
I
LTC3803E-3, LTC3803I-3,
LTC3803H-3
LTC3803MP-3
(Note 4)
V
V
(Note 5)
0°C ≤ T
LTC3803E-3: –40°C ≤ T
LTC3803I-3: –40°C ≤ T
LTC3803H-3: –40°C ≤ T
LTC3803MP-3: –55°C ≤ T
R
I
(Note 5)
(Note 5)
V
V
V
C
C
CC
TH/RUN
CC
ITH/RUN
ITH/RUN
ITH/RUN
ITH/RUN
LOAD
LOAD
SL
= 25mA, V
LTC3803E-3, LTC3803I-3
LTC3803H-3
LTC3803MP-3
V
V
LTC3803E-3
LTC3803I-3, LTC3803H-3
LTC3803MP-3
LTC3803E-3
LTC3803I-3, LTC3803H-3
LTC3803MP-3
> V
= 0 (Note 6)
ITH/RUN
CC
= 3000pF
= 3000pF (Note 7)
The
TURNON
J
= V
Pin Load = ±5μA (Note 5)
= 0V
≤ 85°C
= 1.3V
= 1.3V, V
= 1.3V, V
A
TURNON
= 25°C. V
l
= 1.3V
ITH/RUN
denotes the specifi cations which apply over the full operating
, V
ITH/RUN
FB
FB
– 100mV
conjunction with board layout, the rated package thermal impedance and
other environmental factors.
Note 3: Junction temperature T
temperature T
formula:
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency.
Note 5: The LTC3803-3 is tested in a feedback loop that servos V
output of the error amplifi er while maintaining I
the current limit range.
Note 6: Peak current sense voltage is reduced dependent on duty cycle
and an optional external resistor in series with the SENSE pin (R
details, refer to the programmable slope compensation feature in the
Applications Information section.
Note 7: Guaranteed by design.
= 0.8V
= 0.8V
= 0V
CC
J
T
J
J
J
≤ 125°C
Falling
≤ 85°C
≤ 150°C
J
= 8V, unless otherwise noted. (Notes 2, 3)
= T
≤ 150°C
A
+ (P
A
D
and power dissipation P
• 230°C/W).
l
l
l
l
l
l
l
l
l
l
l
l
l
l
l
J
is calculated from the ambient
0.788
0.780
0.780
0.780
0.780
0.05
0.03
0.15
0.10
0.09
MIN
200
270
8.4
8.4
8.1
0.2
90
85
85
70
D
according to the following
0.800
0.800
0.800
0.800
0.800
0.28
0.28
0.28
0.05
LTC3803-3
TYP
240
100
100
100
333
300
9.5
9.5
9.5
0.6
0.6
0.3
1.4
TH
40
10
80
40
40
8
5
/RUN at the midpoint of
0.812
0.812
0.820
0.820
0.820
MAX
10.5
10.7
10.7
0.45
0.45
0.45
350
115
115
120
500
330
0.4
9.6
90
50
90
SL
FB
). For
to the
UNITS
38033fd
mV/V
3
μA/V
kHz
mV
mV
mV
ms
μA
μA
μA
nA
μA
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V