LTC4444 Linear Technology, LTC4444 Datasheet - Page 3

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

Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: The LTC4444E is guaranteed to meet specifi cations from
0°C to 85°C. Specifi cations over the –40°C to 85°C operating
temperature range are assured by design, characterization and correlation
with statistical process controls. The LTC4444I is guaranteed over the full
–40°C to 85°C operating temperature range.
ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
SYMBOL
High Side Gate Driver Output (TG)
V
V
I
R
Low Side Gate Driver Output (BG)
V
V
I
R
Switching Time (BINP (TINP) is Tied to Ground While TINP (BINP) is Switching. Refer to Timing Diagram)
t
t
t
t
t
t
t
t
PU(TG)
PU(BG)
PLH(TG)
PHL(TG)
PLH(BG)
PHL(BG)
r(TG)
f(TG)
r(BG)
f(BG)
OH(TG)
OL(TG)
OH(BG)
OL(BG)
DS(TG)
DS(BG)
PARAMETER
TG High Output Voltage
TG Low Output Voltage
TG Peak Pull-Up Current
TG Pull-Down Resistance
BG High Output Voltage
BG Low Output Voltage
BG Peak Pull-Up Current
BG Pull-Down Resistance
TG Low-High Propagation Delay
TG High-Low Propagation Delay
BG Low-High Propagation Delay
BG High-Low Propagation Delay
TG Output Rise Time
TG Output Fall Time
BG Output Rise Time
BG Output Fall Time
A
= 25°C. V
CONDITIONS
I
I
I
I
10% – 90%, C
10% – 90%, C
10% – 90%, C
10% – 90%, C
10% – 90%, C
10% – 90%, C
10% – 90%, C
10% – 90%, C
TG
TG
BG
BG
The
= –10mA, V
= 100mA, V
= –10mA, V
= 100mA
●
CC
denotes the specifi cations which apply over the full operating
= V
L
L
L
L
L
L
L
L
OH(TG)
OL(TG)
OH(BG)
BOOST
Note 3: T
dissipation P
Note 4: Failure to solder the exposed back side of the MS8E package to the
PC board will result in a thermal resistance much higher than 40°C/W.
= 1nF
= 10nF
= 1nF
= 10nF
= 1nF
= 10nF
= 1nF
= 10nF
T
J
= V
= V
= V
= T
= 12V, V
TG
J
A
BOOST
CC
is calculated from the ambient temperature T
+ (P
–V
– V
D
according to the following formula:
TS
D
– V
BG
TS
• θ
TG
= GND = 0V, unless otherwise noted.
JA
°C/W)
●
●
●
●
●
●
●
●
●
●
MIN
1.7
2
www.DataSheet4U.com
0.55
TYP
120
0.7
2.5
1.2
0.7
55
25
22
19
14
80
50
60
30
3
8
5
6
3
LTC4444
A
and power
MAX
220
110
2.2
1.1
45
40
35
30
UNITS
3
4444f
mV
mV
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Ω
Ω
V
A
V
A