lt3573 Linear Technology Corporation, lt3573 Datasheet - Page 2

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

ABSOLUTE MAXIMUM RATINGS
LT3573
SW ............................................................................60V
V
SS, V
Maximum Junction Temperature........................... 125°C
Operating Junction Temperature Range (Note 2)
Storage Temperature Range ...................–65°C to 150°C
ORDER INFORMATION
ELECTRICAL CHARACTERISTICS
LEAD FREE FINISH
LT3573EMSE#PBF
LT3573IMSE#PBF
Consult LTC Marketing for parts specifi ed with wider operating temperature ranges. *The temperature grade is identifi ed by a label on the shipping container.
For more information on lead free part marking, go to:
For more information on tape and reel specifi cations, go to:
2
temperature range, otherwise specifi cations are at T
PARAMETER
Input Voltage Range
Quiescent Current
Soft-Start Current
SHDN/UVLO Pin Threshold
SHDN/UVLO Pin Hysteresis Current
Soft-Start Threshold
Maximum Switching Frequency
Switch Current Limit
Minimum Current Limit
Switch V
R
R
R
I
REF
REF
REF
REF
IN
LT3573E .............................................–40°C to 125°C
, SHDN/UVLO, R
Reference Current
Voltage
Voltage Line Regulation
Pin Bias Current
C
, T
CESAT
C
, R
REF
, R
ILIM
FB
, BIAS .....................................40V
TAPE AND REEL
LT3573EMSE#TRPBF
LT3573IMSE#TRPBF
...............................................5V
CONDITIONS
SS = 0V
V
SS = 0.4V
UVLO Pin Voltage Rising
V
R
V
I
V
3V < V
(Note 3)
Measured at R
SW
SHDN/UVLO
UVLO
C
IN
ILIM
http://www.linear.com/leadfree/
= 0V
= 3V
= 0.5A
PART MARKING*
3573
3573
= 10k
= 1V
IN
http://www.linear.com/tapeandreel/
A
< 40V
= 25°C. V
= 0V
FB
The
Pin with R
l
IN
denotes the specifi cations which apply over the full operating
= 12V, unless otherwise noted.
REF
PIN CONFIGURATION
= 6.49k
PACKAGE DESCRIPTION
16-Lead Plastic MSOP
16-Lead Plastic MSOP
EXPOSED PAD (PIN 17) IS GND, MUST BE CONNECTED TO GND
SHDN/UVLO
T
JMAX
TEST
BIAS
GND
GND
GND
SW
V
IN
= 125°C,
1
2
3
4
5
6
7
8
16-LEAD PLASTIC MSOP
l
l
l
l
MSE PACKAGE
JA
TOP VIEW
= 50°C/W,
1.15
1.25
1.21
1.20
MIN
140
17
3
2
JC
1000
= 10°C/W
1.22
1.55
1.23
0.01
TYP
200
150
100
190
TEMPERATURE RANGE
–40°C to 125°C
–40°C to 125°C
3.5
2.5
0.7
16
15
14
13
12
11
10
9
0
7
GND
TC
R
R
V
R
SS
GND
REF
FB
C
ILIM
MAX
1.29
1.85
1.25
1.25
0.03
260
250
600
40
1
3
UNITS
%/ V
3573f
kHz
mA
mA
mV
μA
μA
μA
nA
μA
V
V
V
A
V