5
LT1241 Series
CCHARA TERIST
ICS
UW
AT
Y
P
I
CA
LPER
F
O
R
C
E
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
REFERENCE SHORT-CIRCUIT CURRENT (mA)
140
–25 25 75 125
LT1241 • TPC09
0 50 100
40
80
100
120
60
TEMPERATURE (°C)
–50
4.95
REFERENCE VOLTAGE (V)
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
I
O
= 1mA
Reference Voltage Reference Short-Circuit Current Feedback Pin Input Voltage
TEMPERATURE (°C)
–50
2.45
FEEDBACK PIN INPUT VOLTAGE (V)
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
CURRENT SENSE INPUT THRESHOLD (V)
1.2
36
LT1241 • TPC17
0.6
0.2
0.4
0.8
1.0
12 45
T
J
= –55°C
T
J
=125°C
T
J
= 25°C
TEMPERATURE (°C)
–50
0.95
CURRENT SENSE CLAMP VOLTAGE (V)
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
A
VOL
OPEN-LOOP VOLTAGE GAIN (dB)
100
10k 10M
LT1241 • TPC16
40
0
20
60
80
100 1k 100k 1M
PHASE
GAIN
V
CC
= 15V
V
O
= 2.0V - 4.0V
R
L
= 100k
T
A
= 25°C
PHASE (DEG)
180
–45
225
90
0
45
135
OUTPUT SOURCE CURRENT (mA)
0
0
OUTPUT SATURATION VOLTAGE (V)
4.0
200
LT1241 • TPC13
0.5
2.0
2.5
1.0
1.5
3.0
3.5
T
J
= –55°C
T
J
= 25°C
T
J
= 125°C
100
OUTPUT SINK CURRENT (mA)
0
0
OUTPUT SATURATION VOLTAGE (V)
1.0
100 200
LT1241 • TPC14
T
J
= –55°C
T
J
= 25°C
T
J
= 125°C
0.5
OUTPUT SINK CURRENT (mA)
0
0
OUTPUT SATURATION VOLTAGE (V)
4.0
510
LT1241 • TPC15
2.0
0.5
1.0
1.5
2.5
3.0
3.5
T
J
= 125°C
T
J
= –55°C
T
J
= 25°C
