LTC4444 Linear Technology, LTC4444 Datasheet - Page 5

• Manufacturer Part Number: LTC4444
• Description: High Voltage Synchronous N-Channel MOSFET Driver
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
450
375
500
475
425
400
50
30
80
70
60
40
20
10
0
–40 –25
1
Input Thresholds (TINP, BINP)
Hysteresis vs Temperature
Rise and Fall Time vs
Load Capacitance
V
TS = GND
T
V
TS = GND
CC
A
CC
= 25°C
2
= BOOST = 12V
= BOOST = 12V
–10 5 20
3
LOAD CAPACITANCE (nF)
TEMPERATURE (°C)
4
30
28
26
24
22
20
18
16
14
12
10
35
5
Propagation Delay vs
V
7
CC
50 65 80
6
t
Supply Voltage
r(TG)
8
t
r(BG)
7
t
PLH(TG)
t
t
f(TG)
f(BG)
SUPPLY VOLTAGE (V)
9
8
95
t
PHL(TG)
4444 G13
110
10
4444 G10
9
125
10
11
12
T
BOOST = V
TS = GND
A
t
t
= 25°C
PLH(BG)
PHL(BG)
3.4
3.2
3.0
2.8
2.6
2.4
2.0
6.7
6.6
6.5
6.4
6.3
6.2
6.1
6.0
2.2
13
–40
–40
V
Thresholds vs Temperature
Peak Driver (TG, BG) Pull-Up
Current vs Temperature
4444 G16
V
TS = GND
BOOST = V
TS = GND
CC
CC
CC
–25
–25
14
= BOOST = 12V
Undervoltage Lockout
–10 5
–10 5
RISING THRESHOLD
FALLING THRESHOLD
CC
TEMPERATURE (°C)
TEMPERATURE (°C)
20
20
35
35
I
I
PU(BG)
PU(TG)
50
50
65
65
80
80
37
32
27
22
17
12
2
7
95
–40
95
Propagation Delay vs Temperature
V
TS = GND
110
110
4444 G14
CC
–25
4444 G11
= BOOST = 12V
125
125
–10 5
TEMPERATURE (°C)
20
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
16
14
32
30
28
26
24
22
20
18
12
10
35
t
PLH(TG)
8
6
0
–40
7
Rise and Fall Time vs
V
Output Driver Pull-Down
Resistance vs Temperature
50
R
T
BOOST = V
TS = GND
C
R
CC
A
DS(BG)
t
L
–25
DS(TG)
PLH(BG)
t
= 25°C
= 3.3nF
PHL(BG)
65
Supply Voltage
8
BOOST-TS = 7V
–10
t
PHL(TG)
80
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CC
SUPPLY VOLTAGE (V)
5
9
95
V
TEMPERATURE (°C)
BOOST-TS = 12V
CC
20
110
4444 G17
= 7V
10
35
t
t
t
125
t
r(TG)
r(BG)
f(BG)
f(TG)
LTC4444
V
CC
50
11
= 12V
V
CC
65
BOOST-TS = 14V
= 14V
12
80
95
13
110
4444 G12
4444 G15
5
4444f
125
14