LTC1255C Linear Technology, LTC1255C Datasheet - Page 3

• Manufacturer Part Number: LTC1255C
• Description: Dual 24V High-Side MOSFET Driver
• Manufacturer: Linear Technology

SYMBOL
t
t
t
The
temperature range.
Note 1: Quiescent current OFF is for both channels in OFF condition.
Note 2: Quiescent current ON is per driver and is measured independently.
The gate voltage is clamped to 12V above the rail to simulate the effects of
protection clamps connected across the GATE-SOURCE of the power
MOSFET.
TYPICAL PERFOR
ELECTRICAL C
ON
OFF
SC
50
45
40
35
30
25
20
15
10
5
0
denotes specifications which apply over the full operating
0
Standby Supply Current
V
T
A
IN1
= 25°C
5
= V
PARAMETER
Turn-ON Time
Turn-OFF Time
Short-Circuit Turn-OFF Time
IN2
SUPPLY VOLTAGE (V)
= 0V
10
15
HARA TERISTICS
20
W
LTC1255 • TPC01
25
A
C
U
30
CE
C
HARA TERISTICS
CONDITIONS
V
V
V
V
V
V
V
V
V
2.0
1.6
1.4
1.2
0.8
1.8
1.0
0.6
0.4
0.2
Time for V
Time for V
Time for V
Time for V
Time for V
S
S
S
S
S
S
S
S
S
0
= 10V, C
= 18V, C
= 24V, C
= 10V, C
= 18V, C
= 24V, C
= 10V, C
= 18V, C
= 24V, C
Supply Current per Driver (ON)
0
ONE INPUT = 0N
OTHER INPUT = OFF
T
A
= 25°C
V
5
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
GATE
C
S
= 9V to 24V, T
SUPPLY VOLTAGE (V)
= 1000pF (Note 3)
> V
> V
= 1000pF (Note 3)
> V
> V
= 1000pF (Note 3)
> V
= 1000pF, (Note 3, 4)
= 1000pF, (Note 3, 4)
= 1000pF, (Note 3, 4)
= 1000pF, (Note 3, 4)
= 1000pF, (Note 3, 4)
= 1000pF, (Note 3, 4)
10
S
S
S
S
S
+ 2V
+ 5V
+ 5V
+ 10V
+ 10V
Note 3: Zener diode clamps must be connected across the GATE-SOURCE
of the power MOSFET to limit V
MMBZ5242A (surface mount) 12V Zener diodes are recommended. All
Turn-ON and Turn-OFF tests are performed with a 12V Zener clamp in
series with a small-signal diode connected between V
output to simulate the effects of a 12V protection Zener clamp connected
across the GATE-SOURCE of the power MOSFET.
Note 4: Time for V
15
20
A
= 25 C, unless otherwise noted.
LTC1255 • TPC02
25
GATE
30
to drop below 1V.
20
18
16
14
12
10
GS
8
6
4
2
0
Gate Voltage Above Supply
0
. 1N5242A (through hole) or
MIN
V
30
75
40
75
50
10
10
10
5
5
5
CLAMP
5
= 12V
SUPPLY VOLTAGE (V)
TYP
10
100
250
120
250
180
24
21
19
16
16
16
15
S
LTC1255
and the GATE
MAX
300
750
400
750
500
60
60
60
30
30
30
20
LTC1255 • TPC03
25
UNITS
3
30
s
s
s
s
s
s
s
s
s
s
s