Datasheet

LTC4444-5
5
44445fc
TYPICAL PERFORMANCE CHARACTERISTICS
Input Thresholds (TINP, BINP)
Hysteresis vs Temperature
V
CC
Undervoltage Lockout
Thresholds vs Temperature
Rise and Fall Time
vs V
CC
Supply Voltage
Rise and Fall Time
vs Load Capacitance
Peak Driver (TG, BG) Pull-Up
Current vs Temperature
Output Driver Pull-Down
Resistance vs Temperature
Propagation Delay
vs V
CC
Supply Voltage
Propagation Delay vs Temperature
–55 –25 5 35 65 95 125 150
TEMPERATURE (°C)
TG OR BG INPUT THRESHOLD HYSTERESIS (mV)
450
475
500
44445 G10
425
400
375
V
CC
= BOOST = 6V
TS = GND
TEMPERATURE (°C)
V
CC
SUPPLY VOLTAGE (V)
3.9
4.0
4.1
44445 G11
3.7
3.4
4.2
3.8
3.6
3.5
RISING THRESHOLD
FALLING THRESHOLD
BOOST = V
CC
TS = GND
–55 –25 5 35 65 95 125 150
SUPPLY VOLTAGE (V)
4.5
6
RISE/FALL TIME (ns)
10
14
18
34
26
6.5
8.5
9.5 13.5
30
22
8
12
16
32
24
28
20
5.5 7.5
10.5
11.5
12.5
44445 G12
T
A
= 25°C
BOOST = V
CC
TS = GND
C
L
= 3.3nF
t
r(TG)
t
f(TG)
t
f(BG)
t
r(BG)
LOAD CAPACITANCE (nF)
1
RISE/FALL TIME (ns)
40
50
60
9
44445 G13
30
20
0
3
5
7
210
4
6
8
10
80
70
T
A
= 25°C
V
CC
= BOOST = 6V
TS = GND
t
r(TG)
t
f(TG)
t
f(BG)
t
r(BG)
–55 –25 5 35 65 95 125 150
TEMPERATURE (°C)
PULL-UP CURRENT (A)
2.5
3.0
3.5
44445 G14
2.0
1.5
1.0
I
PU(BG)
V
CC
= 6V
I
PU(TG)
BOOST–TS = 12V
I
PU(TG)
BOOST–TS = 6V
I
PU(BG)
V
CC
= 12V
–55 –25 5 35 65 95 125 150
TEMPERATURE (°C)
OUTPUT DRIVER PULL-DOWN RESISTANCE ()
1.2
1.8
2.6
44445 G15
0.8
0.4
1.0
1.4
2.2
1.6
2.4
3.0
2.8
2.0
0.6
BOOST–TS = 6V
BOOST–TS = 12V
V
CC
= 6V
R
DS(TG)
R
DS(BG)
BOOST–TS = 4.5V
V
CC
= 4.5V
V
CC
= 12V
SUPPLY VOLTAGE (V)
4.5
PROPAGATION DELAY (ns)
45
40
35
30
25
20
15
10
12.5
44445 G16
6.5 8.5 10.5 11.55.5 7.5 9.5 13.5
T
A
= 25°C
BOOST = V
CC
TS = GND
t
PLH(TG)
t
PHL(TG)
t
PHL(BG)
t
PLH(BG)
–55 –25 5 35 65 95 125 150
TEMPERATURE (°C)
PROPAGATION DELAY (ns)
32
42
52
44445 G17
22
12
27
37
47
17
7
2
t
PLH(TG)
t
PHL(BG)
V
CC
= BOOST = 6V
TS = GND
t
PHL(TG)
t
PLH(BG)