lt3573 Linear Technology Corporation, lt3573 Datasheet - Page 3

• Manufacturer Part Number: lt3573
• Description: Isolated Flyback Converter Without An Opto-coupler
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
PARAMETER
Error Amplifi er Voltage Gain
Error Amplifi er Transconductance
Minimum Switching Frequency
TC Current into R
BIAS Pin Voltage
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 LT3573E is guaranteed to meet performance specifi cations
from 0°C to 125°C junction temperature. Specifi cations over the –40°C
TYPICAL PERFORMANCE CHARACTERISTICS
temperature range, otherwise specifi cations are at T
5.20
5.15
5.10
5.05
5.00
4.95
4.90
4.85
4.80
–50
Output Voltage
–25
REF
0
TEMPERATURE (°C)
25
50
75
100
3573 G01
125
CONDITIONS
V
V
R
I
BIAS
IN
I = 10μA, V
C
TC
= 0.35V
= 3V
= 20.1k
= 30mA
7
6
5
4
3
2
1
0
–50
A
Quiescent Current
= 25°C. V
IN
–25
= 3V
The
0
TEMPERATURE (°C)
l
IN
denotes the specifi cations which apply over the full operating
= 12V, unless otherwise noted.
V
V
25
IN
IN
= 40V
= 5V
to 125°C operating junction temperature range are assured by design
characterization and correlation with statistical process controls. The
LT3573I is guaranteed over the full –40°C to 125°C operating junction
temperature range.
Note 3: Current fl ows out of the R
50
75
100
3573 G02
T
A
125
= 25°C, unless otherwise noted.
3.2
3.0
2.8
2.6
2.4
2.2
2.0
–50
Bias Pin Voltage
REF
MIN
2.9
–25
pin.
0
TEMPERATURE (°C)
27.5
TYP
150
150
40
V
V
3
25
IN
IN
= 12V
= 40V
50
LT3573
MAX
3.1
75
100
3573 G03
μmhos
UNITS
3
3573f
125
kHz
V/V
μA
V