參數(shù)資料
型號: LTC1255IS8
廠商: LINEAR TECHNOLOGY CORP
元件分類: MOSFETs
英文描述: Dual 24V High-Side MOSFET Driver
中文描述: 2 CHANNEL, BUF OR INV BASED MOSFET DRIVER, PDSO8
封裝: SOIC-8
文件頁數(shù): 3/16頁
文件大小: 340K
代理商: LTC1255IS8
3
LTC1255
SYMBOL
t
ON
PARAMETER
Turn-ON Time
CONDITIONS
V
S
= 10V, C
GATE
= 1000pF (Note 3)
Time for V
GATE
> V
S
+ 2V
Time for V
GATE
> V
S
+ 5V
V
S
= 18V, C
GATE
= 1000pF (Note 3)
Time for V
GATE
> V
S
+ 5V
Time for V
GATE
> V
S
+ 10V
V
S
= 24V, C
GATE
= 1000pF (Note 3)
Time for V
GATE
> V
S
+ 10V
V
S
= 10V, C
GATE
= 1000pF, (Note 3, 4)
V
S
= 18V, C
GATE
= 1000pF, (Note 3, 4)
V
S
= 24V, C
GATE
= 1000pF, (Note 3, 4)
V
S
= 10V, C
GATE
= 1000pF, (Note 3, 4)
V
S
= 18V, C
GATE
= 1000pF, (Note 3, 4)
V
S
= 24V, C
GATE
= 1000pF, (Note 3, 4)
MIN
TYP
MAX
UNITS
30
75
100
250
300
750
μ
s
μ
s
40
75
120
250
400
750
μ
s
μ
s
50
10
10
10
5
5
5
180
24
21
19
16
16
16
500
60
60
60
30
30
30
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
t
OFF
Turn-OFF Time
t
SC
Short-Circuit Turn-OFF Time
V
S
= 9V to 24V, T
A
= 25
°
C, unless otherwise noted.
ELECTRICAL C
HARA TERISTICS
The
G
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 V
GS
. 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 V
S
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 V
GATE
to drop below 1V.
C
HARA TERISTICS
U
A
TYPICAL PERFOR
CE
Standby Supply Current
Gate Voltage Above Supply
Supply Current per Driver (ON)
SUPPLY VOLTAGE (V)
0
0
V
G
S
4
6
8
10
12
14
5
10
15
20
LTC1255 TPC03
25
16
18
20
2
30
V
CLAMP
= 12V
SUPPLY VOLTAGE (V)
0
0
S
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
T
A
= 25°C
SUPPLY VOLTAGE (V)
0
0
S
μ
A
10
15
20
25
30
35
5
10
15
20
LTC1255 TPC01
25
40
45
50
5
30
V
IN1
= V
IN2
= 0V
T
A
= 25°C
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