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LTC1255CS8 Datasheet(PDF) 3 Page - Linear Technology

Part # LTC1255CS8
Description  Dual 24V High-Side MOSFET Driver
PDF  16 Pages
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LTC1255CS8 Datasheet(HTML) 3 Page - Linear Technology

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LTC1255
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
tON
Turn-ON Time
VS = 10V, CGATE = 1000pF (Note 3)
Time for VGATE > VS + 2V
30
100
300
µs
Time for VGATE > VS + 5V
75
250
750
µs
VS = 18V, CGATE = 1000pF (Note 3)
Time for VGATE > VS + 5V
40
120
400
µs
Time for VGATE > VS + 10V
75
250
750
µs
VS = 24V, CGATE = 1000pF (Note 3)
Time for VGATE > VS + 10V
50
180
500
µs
tOFF
Turn-OFF Time
VS = 10V, CGATE = 1000pF, (Note 3, 4)
10
24
60
µs
VS = 18V, CGATE = 1000pF, (Note 3, 4)
10
21
60
µs
VS = 24V, CGATE = 1000pF, (Note 3, 4)
10
19
60
µs
tSC
Short-Circuit Turn-OFF Time
VS = 10V, CGATE = 1000pF, (Note 3, 4)
5
16
30
µs
VS = 18V, CGATE = 1000pF, (Note 3, 4)
5
16
30
µs
VS = 24V, CGATE = 1000pF, (Note 3, 4)
5
16
30
µs
VS = 9V to 24V, TA = 25°C, unless otherwise noted.
ELECTRICAL C
C
HARA TERISTICS
The q denotes specifications which apply over the full operating
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.
Note 3: Zener diode clamps must be connected across the GATE-SOURCE
of the power MOSFET to limit VGS. 1N5242A (through hole) or
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 VS and the GATE
output to simulate the effects of a 12V protection Zener clamp connected
across the GATE-SOURCE of the power MOSFET.
Note 4: Time for VGATE to drop below 1V.
CC
HARA TERISTICS
A
TYPICALPERFOR
CE
Standby Supply Current
Gate Voltage Above Supply
Supply Current per Driver (ON)
SUPPLY VOLTAGE (V)
0
0
4
6
8
10
12
14
5
10
15
20
LTC1255 • TPC03
25
16
18
20
2
30
VCLAMP = 12V
SUPPLY VOLTAGE (V)
0
0
0.4
0.6
0.8
1.0
1.2
1.4
5
10
15
20
LTC1255 • TPC02
25
1.6
1.8
2.0
0.2
30
ONE INPUT = 0N
OTHER INPUT = OFF
TA = 25°C
SUPPLY VOLTAGE (V)
0
0
10
15
20
25
30
35
5
10
15
20
LTC1255 • TPC01
25
40
45
50
5
30
VIN1 = VIN2 = 0V
TA = 25°C



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