參數(shù)資料
型號： LTC1421-2.5
廠商： Linear Technology Corporation
英文描述： Hook-Up Wire; Conductor Size AWG:12; No. Strands x Strand Size:65 x 30; Jacket Color:White; Cable/Wire MIL SPEC:MIL-W-76C Type MW; Conductor Material:Copper; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:No RoHS Compliant: Yes
中文描述： 熱插拔控制器
文件頁數(shù)： 3/24頁
文件大?。?/td> 464K
代理商： LTC1421-2.5
3
LTC1421/LTC1421-2.5
ELECTRICAL CHARACTERISTICS
V
CCHI
= 12V, V
CCLO
= 5V, T
A
= 25
°
C unless otherwise noted (Note 2).
Note 3:
After power-on reset, the V
OUTLO
and V
OUTHI
have to drop below the
V
TRIP
point before the charge pump is restarted.
Note 4:
After power-on reset, the V
OUTLO
has to drop below the V
TRIP
point
before the charge pump is restarted.
SYMBOL
I
RAMP
I
CP
PARAMETER
RAMP Pin Output Current
Charge Pump Output Current
CONDITIONS
Charge Pump On, V
RAMP
=
0.4V
Charge Pump On, GATEHI = 0V
GATELO = 0V
V
GATEHI
V
OUTHI
V
GATELO
V
OUTLO
V
CCLO
= 5V, Unloaded
CON1, CON2, POR
CON1, CON2, POR
CON1, CON2, POR = GND
RESET, COMPOUT, PWRGD, DISABLE, FAULT,
I
O
= 3mA
CPON, I
O
= 3mA
DISABLE, I
O
= –3mA
CPON, I
O
= –1mA
RESET, PWRGD, FAULT = GND
MIN
11
TYP
17
–600
–300
MAX
23
UNITS
G
μ
A
μ
A
μ
A
V
V
V
V
V
μ
A
V
V
GATEHI
V
GATELO
GATELO N-Channel Gate Drive
V
AUXVCC
Auxiliary V
CC
Output Voltage
V
IL
Input Low Voltage
V
IH
Input High Voltage
I
IN
Input Current
V
OL
Output Low Voltage
GATEHI N-Channel Gate Drive
6
16
16
10
4.5
G
0.8
G
2
G
–30
–60
–90
0.4
G
G
1.45
V
V
V
V
OH
Output High Voltage
G
4
G
3.4
I
PU
AC CHARACTERISTICS
t
1
t
2
Logic Output Pull-Up Current
–15
μ
A
CON1 or CON2
↓
to CPON
↑
PWRGD
↑
to RESET
↑
Figure 1, C
L
= 15pF
Figure 1, R
L
= 10k to V
CCLO
, C
L
= 15pF
G
15
160
140
160
140
15
20
200
200
200
200
20
32
50
50
20
30
240
280
240
280
30
ms
ms
ms
ms
ms
ms
μ
s
ns
ns
μ
s
G
t
3
PWRGD
↑
to DISABLE
↓
Figure 1, C
L
= 15pF
G
t
4
t
5
t
6
t
7
t
9
POR
↓
to CPON
↓
PWRGD
↓
to RESET
↓
POR
↑
to CPON
↑
CON1 or CON2
↑
to CPON
↓
Short-Circuit Detect
to FAULT
↓
Figure 1, C
L
= 15pF
Figure 1, R
L
= 10k to V
CCLO
, C
L
= 15pF
Figure 1, C
L
= 15pF
Figure 1, C
L
= 15pF
Figure 1, R
L
= 10k to V
CCLO
, C
L
= 15pF
V
CCLO
– SETLO = 0mV to 100mV
Figure 2, C
L
= 15pF
V
CCLO
– SETLO = 0mV to 100mV
Figure 2, R
L
= 10k to V
CCLO
, C
L
= 15pF
COMP
–
= 1.232V, 10mV Overdrive
R
L
= 10k to V
CCLO
, C
L
= 15pF
COMP
–
= 1.232V, 10mV Overdrive
R
L
= 10k to V
CCLO
, C
L
= 15pF
G
t
10
Short-Circuit Detect
to CPON
↓
20
μ
s
t
11
t
CHL
POR
↑
to FAULT
↑
Comparator High to Low
20
0.25
ns
μ
s
G
0.5
t
CLH
Comparator Low to High
G
1
1.5
μ
s
The
G
denotes specifications which apply over the full operating temperature
range.
Note 1:
Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2:
All currents into device pins are positive; all currents out of device
pins are negative. All voltages are reference to ground unless otherwise
specified.
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