Datasheet

4
LT1737
1737fa
TEMPERATURE (°C)
–50
SUPPLY CURRENT (mA)
13
12
11
10
9
8
0
50
75
1737 G04
–25
25
100
125
TEMPERATURE (°C)
–50
1
0
–1
–2
–3
–4
–5
–6
25 75
1737 G05
–25 0
50 100 125
UVLO PIN INPUT CURRENT (µA)
V
UVLO
= 1.3V
V
UVLO
= 1.2V
TEMPERATURE (°C)
–50
OSCILLATOR FREQUENCY (kHz)
115
110
105
100
95
90
85
25 75
1737 G06
–25 0
50 100 125
TYPICAL PERFOR A CE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
MINIMUM INPUT VOLTAGE (V)
4.3
4.2
4.1
4.0
3.9
3.8
0
50
75
1737 G01
–25
25
100
125
TEMPERATURE (°C)
–50
SHUTDOWN VOLTAGE V
UVLO
(V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
25 75
1737 G03
–25 0
50 100 125
Minimum Input Voltage vs
Temperature Shutdown I
CC
vs Temperature
Shutdown Voltage (V
UVLO
) vs
Temperature
Supply Current vs Temperature
UVLO Pin Input Current vs
Temperature
Oscillator Frequency vs
Temperature
I
SINK
(mA)
1
V
GATE
(V)
1.0
0.8
0.6
0.4
0.2
0
10 100 1000
1737 G07
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
I
SOURCE
(mA)
1
V
CC
-V
GATE
(V)
0
–0.5
–1.0
–1.5
–2.0
–2.5
–3.0
10 100 1000
1737 G08
T
A
= 125°C
T
A
= –55°C
T
A
= 25°C
TEMPERATURE (°C)
–50
V
C
CLAMP VOLTAGE, SWITCHING THRESHOLD (V)
3.0
2.5
2.0
1.5
1.0
0.5
0
25 75
1737 G09
–25 0
50 100 125
CLAMP VOLTAGE
SWITCHING THRESHOLD
V
GATE
vs I
SINK
V
CC
-V
GATE
vs I
SOURCE
V
C
Clamp Voltage, Switching
Threshold vs Temperature
TEMPERATURE (°C)
–50
SHUTDOWN I
CC
(µA)
125
100
75
50
25
0
0
50
75
1737 G02
–25
25
100
125