5
LT1339
sn1339 1339fas
TYPICAL PERFORMANCE CHARACTERISTICS
UW
TEMPERATURE (°C)
–50
SOFT START CHARGE CURRENT (µA)
9
8
7
6
25 75
1339 G10
–25 0
50 100 125
Soft Start Charge Current
vs Temperature
RUN/SHDN Threshold Hysteresis
vs Temperature
TEMPERATURE (°C)
–50
RUN/SHDN THRESHOLD HYSTERESIS (mV)
26
25
24
23
22
21
20
25 75
1339 G12
–25 0
50 100 125
TEMPERATURE (°C)
–50
RUN/SHDN RISING THRESHOLD (V)
1.26
1.25
1.24
1.23
1.22
1.21
1.20
25 75
1339 G11
–25 0
50 100 125
RUN/SHDN Rising Threshold
vs Temperature
BOTTOM GATE CAPACITANCE (pF)
1000
BOTTOM GATE TRANSITION TIMES (ns)
10000
1339 G13
2500
5000
7500
160
140
120
100
80
60
40
20
0
FALL TIME
RISE TIME
T
A
= 25°C
Bottom Gate Transition Times vs
Bottom Gate Capacitance
Top Gate Transition Times vs
Top Gate Capacitance
TOP GATE CAPACITANCE (pF)
1000
TOP GATE TRANSITION TIMES (ns)
10000
1339 G14
2500
5000
7500
300
250
200
150
100
50
0
FALL TIME
RISE TIME
T
A
= 25°C
V
SENSE(CM)
(V)
0
V
SENSE
(mV)
45 60
1339 G15
1
2
3
160
150
140
130
120
110
100
90
80
UPPER LIMIT
FULL OPERATING
TEMPERATURE RANGE
TYPICAL
LOWER LIMIT
Average Current Limit Threshold
Sense Voltage Tolerance vs
Common Mode Voltage
12V
IN
Supply Current vs
Supply Voltage
12V
IN
SUPPLY VOLTAGE (V)
10
12V
IN
SUPPLY CURRENT (mA )
1514
1339 G16
11
12
13
30
28
26
24
22
20
18
16
14
C
BG
= 1000pF
C
BG
= 3300pF
C
BG
= 4700pF
C
BG
= 10000pF
f
O
= 100kHz
T
A
= 25°C
Boost Supply Current vs
12V
IN
Supply Voltage
12V
IN
SUPPLY VOLTAGE (V)
10
BOOST SUPPLY CURRENT (mA )
1514
1339 G17
11
12
13
18
16
14
12
10
8
6
4
2
C
TG
= 1000pF
C
TG
= 3300pF
C
TG
= 4700pF
C
TG
= 10000pF
f
O
= 100kHz
T
A
= 25°C
