LT1249IN8 Linear Technology, LT1249IN8 Datasheet - Page 2

• Manufacturer Part Number: LT1249IN8
• Description: IC PFC CTRLR AVERAGE CURR 8DIP
• Manufacturer: Linear Technology

Specifications of LT1249IN8

• Mode: Average Current
• Frequency - Switching: 100kHz
• Current - Startup: 250µA
• Voltage - Supply: 15.5 V ~ 27 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Through Hole
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

ABSOLUTE
LT1249
Supply Voltage ....................................................... 27V
GTDR Current Continuous ..................................... 0.5A
GTDR Output Energy (Per Cycle) ............................. 5 J
I
V
M
Operating Junction Temperature Range
Thermal Resistance (Junction-to-Ambient)
Storage Temperature Range ..................–65 C to 150 C
Lead Temperature (Soldering, 10 sec)................. 300 C
ELECTRICAL CHARACTERISTICS
range, otherwise specifications are at T
VA
PARAMETER
Overall
Supply Current (V
Supply Current, On
V
V
Voltage Amplifier
V
Voltage Amp Gain
Voltage Amp Unity-Gain Bandwidth
Voltage Amp Output High
Voltage Amp Output Low
Voltage Amp Source Current
Voltage Amp Sink Current Threshold
Voltage Amp Sink Current Hysteresis
Current Amplifier
Current Amp Offset Voltage
Current Amp Transconductance
Current Amp Voltage Gain
Current Amp Source Current
Current Amp Sink Current
Current Amp Output High
Current Amp Output Low
2
AC
CC
CC
SENSE
SENSE
OUT
OUT
LT1249C ................................................ 0 C to 100 C
LT1249I ........................................... – 40 C to 125 C
N8 Package ................................................ 100 C/W
S8 Package ................................................. 120 C/W
Turn-On Threshold
Turn-Off Threshold
Input Current ................................................. 20mA
= 5V, no load on any outputs, unless otherwise noted.
Bias Current
Input Current.............................................. 5mA
Input Voltage ............................................ V
CC
in Undervoltage Lockout)
W
MAXIMUM
W W
A
= 25 C. Maximum operating voltage (V
RATINGS
U
CONDITIONS
V
11.5V V
V
0 Source Current 50 A
0 Sink Current 5 A
Linear Operation, 2V < VA
2V < VA
2.5V V
V
V
CC
SENSE
MOUT
MOUT
I
CAOUT
The
= Lockout Voltage – 0.2V
MAX
= 1V, I
= – 0.3V, I
= 0V to 7V
OUT
= 40 A
CAOUT
CC
denotes specifications which apply over the operating temperature
< 10V
M
V
PACKAGE/ORDER
Consult factory for Military grade parts.
= 0 A
MAX
7.5V
M
= 0 A
, CA
CA
M
GND
OUT
OUT
OUT
T
T
I
AC
JMAX
JMAX
OUT
MAX
= 1V
1
2
3
4
8-LEAD PLASTIC SO
= 125 C,
= 125 C,
< 10V
) = 25V, V
N8 PACKAGE
8-LEAD PDIP
S8 PACKAGE
TOP VIEW
JA
JA
= 100 C/W (N8)
= 120 C/W (S8)
CC
8
7
6
5
= 18V, I
GTDR
V
V
VA
CC
SENSE
15.5
MIN
130
150
500
100
9.5
7.4
OUT
70
10
33
14
67
AC
INFORMATION
U
= 100 A, CA
1000
0.25
16.5
10.5
22.5
TYP
–25
100
260
320
145
1.5
0.1
8.1
1.2
12
44
95
9
2
ORDER PART
LT1249CN8
LT1249IN8
LT1249CS8
LT1249IS8
NUMBER
MARKING
W
S8 PART
–250
MAX
0.45
17.5
11.5
1249
1249I
450
550
220
125
0.4
OUT
12
57
30
15
2
= 3.5V,
UNITS
U
MHz
mho
V/V
mA
mA
mV
nA
dB
V
V
V
V
A
A
A
A
A
V
V