Datasheet

4
LT1160/LT1162
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TYPICAL PERFORMANCE CHARACTERISTICS
U
W
INPUT FREQUENCY (kHz)
1
SUPPLY CURRENT (mA)
60
50
40
30
20
10
0
10 100 1000
1160/62 G04
C
GATE
= 10000pF
C
GATE
= 1000pF
50% DUTY CYCLE
V
+
= 12V
C
GATE
= 3000pF
TEMPERATURE (°C)
–50
V
BOOST
– V
TSOURCE
VOLTAGE (V)
100
13
12
11
10
9
8
7
6
5
4
1160/62 G06
0–25 25 50 75 125
SHUTDOWN THRESHOLD
START-UP THRESHOLD
V
TSOURCE
= 60V
TEMPERATURE (°C)
–50
INPUT CURRENT (µA)
14
13
12
11
10
9
8
7
6
5
4
0
50
75
1160/62 G08
–25
25
100
125
V
+
= 12V
V
IN
= 4V
DC Supply Current
vs Temperature
TEMPERATURE (°C)
–50
SUPPLY CURRENT (mA)
100
14
13
12
11
10
9
8
7
6
5
1160/62 G02
0–25 25 50 75 125
BOTH INPUTS
HIGH OR LOW
V
INTOP
= HIGH
V
INBOTTOM
= LOW
V
INTOP
= LOW
V
INBOTTOM
= HIGH
V
+
= 12V
INPUT FREQUENCY (kHz)
1
SUPPLY CURRENT (mA)
60
50
40
30
20
10
0
10 100 1000
1160/62 G03
V
+
= 20V
50% DUTY CYCLE
C
GATE
= 3000pF
V
+
= 15V
V
+
= 10V
DC + Dynamic Supply Current
vs Input Frequency
DC Supply Current
vs Supply Voltage
DC + Dynamic Supply Current
vs Input Frequency
TEMPERATURE (°C)
–50
SUPPLY VOLTAGE (V)
100
13
12
11
10
9
8
7
6
5
4
1160/62 G05
0–25 25 50 75 125
SHUTDOWN THRESHOLD
START-UP THRESHOLD
Undervoltage Lockout (V
+
)
Undervoltage Lockout (V
BOOST
)
Input Threshold Voltage
vs Temperature
TEMPERATURE (°C)
–50
INPUT THRESHOLD VOLTAGE (V)
100
2.0
1.8
1.6
1.4
1.2
1.0
0.8
1160/62 G07
0–25 25 50 75 125
V
LOW
V
HIGH
V
+
= 12V
INPUT VOLTAGE (V)
4
INPUT CURRENT (mA)
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
8
9
1160/62 G09
567
10
11
12
V
+
= 12V
Top or Bottom Input Pin Current
vs Input Voltage
(LT1160 or 1/2 LT1162)
SUPPLY VOLTAGE (V)
8
SUPPLY CURRENT (mA)
20
14
13
12
11
10
9
8
7
6
5
1160/62 G01
1210 14 16 18 22
BOTH INPUTS
HIGH OR LOW
V
INTOP
= LOW
V
INBOTTOM
= HIGH
V
INTOP
= HIGH
V
INBOTTOM
= LOW
Top or Bottom Input Pin Current
vs Temperature