Datasheet

LTC4446
5
4446f
TYPICAL PERFORMANCE CHARACTERISTICS
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
LOAD CAPACITANCE (nF)
1
RISE/FALL TIME (ns)
40
50
60
9
4445 G13
30
20
0
3
5
7
210
4
6
8
10
80
70
t
r(TG)
t
r(BG)
t
f(TG)
t
f(BG)
T
A
= 25°C
V
CC
= BOOST = 12V
TS = GND
TEMPERATURE (°C)
–40
2.0
PULL-UP CURRENT (A)
2.2
2.6
2.8
3.0
3.4
–25
35
65
4446 G14
2.4
3.2
20
95
125110
–10
5
50 80
V
CC
= BOOST = 12V
TS = GND
I
PU(BG)
I
PU(TG)
TEMPERATURE (°C)
–25
OUTPUT DRIVER PULL-DOWN RESISTACNE (Ω)
1.2
1.6
2.0
95
4446 G15
0.8
0.4
1.0
1.4
1.8
0.6
0.2
0
5
35
65
–10–40 110
20
50
80
125
BOOST-TS = 12V
V
CC
= 12V
V
CC
= 14V
V
CC
= 7V
R
DS(TG)
R
DS(BG)
BOOST-TS = 14V
BOOST-TS = 7V
SUPPLY VOLTAGE (V)
7
10
PROPAGATION DELAY (ns)
12
16
18
20
30
24
9
11
12
4444 G16
14
26
28
22
8
10
13
14
T
A
= 25°C
BOOST = V
CC
TS = GND
t
PLH(TG)
t
PLH(BG)
t
PHL(BG)
t
PHL(TG)
TEMPERATURE (°C)
–40
2
PROPAGATION DELAY (ns)
7
17
22
27
37
–25
35
65
4446 G17
12
32
20
95
125110
–10
5
50 80
V
CC
= BOOST = 12V
TS = GND
t
PLH(TG)
t
PHL(TG)
t
PLH(BG)
t
PHL(BG)
Switching Supply Current vs
Input Frequency
Switching Supply Current vs
Load Capacitance
SWITCHING FREQUENCY (kHz)
0
SUPPLY CURRENT (mA)
1.5
2.0
2.5
600
1000
4446 G18
1.0
0.5
0
200 400 800
3.0
3.5
4.0
I
BOOST
(TG SWITCHING)
I
BOOST
(BG SWITCHING)
I
VCC
(BG SWITCHING)
I
VCC
(TG SWITCHING)
T
A
= 25°C
V
CC
= BOOST = 12V
TS = GND
LOAD CAPACITANCE (nF)
1
SUPPLY CURRENT (mA)
10
100
1345
0.1
27896
10
4446 G19
I
VCC
(BG SWITCHING
AT 1MHz)
I
BOOST
(TG SWITCHING
AT 500kHz)
I
BOOST
(TG SWITCHING
AT 1MHz)
I
BOOST
(BG SWITCHING AT 1MHz OR 5OOkHz)
I
VCC
(BG SWITCHING
AT 500kHz)
I
VCC
(TG SWITCHING AT 500kHz)
I
VCC
(TG SWITCHING
AT 1MHz)