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LT1244 Datasheet(PDF) 5 Page - Linear Technology

Part # LT1244
Description  High Speed Current Mode Pulse Width Modulators
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT1244 Datasheet(HTML) 5 Page - Linear Technology

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5
LT1241 Series
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Error Amplifier Open-Loop Gain
and Phase
Current Sense Clamp Voltage
Current Sense Input Threshold
Low Level Output Saturation
High Level Output
Low Level Output
Voltage During Undervoltage
Saturation Voltage
Saturation Voltage
Lockout
TEMPERATURE (
°C)
–50
20
140
–25
25
75
125
LT1241 • TPC09
0
50
100
40
80
100
120
60
TEMPERATURE (
°C)
–50
4.95
5.05
–25
25
75
125
LT1241 • TPC10
0
50
100
4.96
5.00
5.01
4.97
4.98
4.99
5.02
5.03
5.04
IO = 1mA
Reference Voltage
Reference Short-Circuit Current
Feedback Pin Input Voltage
TEMPERATURE (
°C)
–50
2.45
2.55
– 25
25
75
125
LT1241 • TPC11
0
50
100
2.46
2.50
2.51
2.47
2.48
2.49
2.52
2.53
2.54
ERROR AMP OUTPUT VOLTAGE (V)
0
0
1.2
36
LT1241 • TPC17
0.6
0.2
0.4
0.8
1.0
12
4
5
TJ = –55°C
TJ =125°C
TJ = 25°C
TEMPERATURE (
°C)
–50
0.95
1.05
–25
25
75
125
LT1241 • TPC12
0
50
100
0.96
1.00
1.01
0.97
0.98
0.99
1.02
1.03
1.04
FREQUENCY (Hz)
10
–20
100
10k
10M
LT1241 • TPC16
40
0
20
60
80
100
1k
100k
1M
PHASE
GAIN
VCC = 15V
VO = 2.0V - 4.0V
RL = 100k
TA = 25°C
180
–45
225
90
0
45
135
OUTPUT SOURCE CURRENT (mA)
0
0
4.0
200
LT1241 • TPC13
0.5
2.0
2.5
1.0
1.5
3.0
3.5
TJ = –55°C
TJ = 25°C
TJ = 125°C
100
OUTPUT SINK CURRENT (mA)
0
0
1.0
100
200
LT1241 • TPC14
TJ = –55°C
TJ = 25°C
TJ = 125°C
0.5
OUTPUT SINK CURRENT (mA)
0
0
4.0
510
LT1241 • TPC15
2.0
0.5
1.0
1.5
2.5
3.0
3.5
TJ = 125°C
TJ = –55°C
TJ = 25°C



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