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參數(shù)資料
| 型號： | LTC1647-1IS8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 電源管理 |
| 英文描述： | Low Power Timer 14-TSSOP 0 to 70 |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO8 |
| 封裝： | 0.150 INCH, PLASTIC, SO-8 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大?。?/td> | 249K |
| 代理商： | LTC1647-1IS8 |
LTC 1647-1/LTC 1647-2/LTC 1647-3
3
V
GATE
External MOSFET Gate Drive
(V
GATE
– V
CC
), V
CC1
= V
CC2
= 5V
(V
GATE
– V
CC
), V
CC1
= V
CC2
= 12V
G
G
10
10
1.20
1.17
13
15
1.29
1.21
70
±
1
17
19
1.38
1.25
V
V
V
V
V
ONHI
V
ONLO
V
ONHYST
I
IN
V
OL
ONX Threshold High
ONX Threshold Low
ONX Hysteresis
ONX Input Current
FAULT X Output Low Voltage
(LTC1647-2, LTC1647-3)
FAULT X Output Leakage Current
(LTC1647-3)
Circuit Breaker Delay Time
Circuit Breaker Reset Time
Turn-On Time
Turn-Off Time
G
G
mV
μ
A
ON = GND or V
CC
I
O
= 1mA, V
CC
= 5V
I
O
= 5mA, V
CC
= 5V
No Fault, FAULT X = V
CC
= 5V
G
±
10
0.4
G
V
V
0.8
±
1
I
LEAK
±
10
μ
A
t
FAULT
t
RESET
t
ON
t
OFF
V
CCX
– V
SENSEX
= 0 to 100mV
ONX High to Low, to FAULT X High
ONX Low to High, to GATE X On
ONX High to Low, to GATE X Off
0.3
50
2
1
μ
s
μ
s
μ
s
μ
s
G
100
ELECTRICAL CHARACTERISTICS
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
CC
= 5V unless otherwise noted. (Note 2)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
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 referenced to ground unless otherwise
specified.
Note 3:
An internal Zener on the GATE pins clamp the charge pump
voltage to a typical maximum operating voltage of 28V. External overdrive
of the GATE pin beyond the internal Zener voltage may damage the device.
The GATE capacitance must be <0.15
μ
F at maximum V
CC
. If a lower GATE
pin clamp voltage is desired, use an external Zener diode.
Note 4:
The total supply current I
CC
is measured with V
CC1
and V
CC2
connected internally (LTC1647-1, LTC1647-2) or externally (LTC1647-3).
Note 5:
The individual supply current I
CCX
is measured on the LTC1647-3.
The lower of the two supplies, V
CC1
and V
CC2
, will have its channel’s
current. The higher supply will carry the additional supply current of the
charge pump and the bias generator beside its channel’s current.
LTC1647-1 Pinout
PIN
DESCRIPTION
1
V
CC
2
ON1
3
ON2
4
GND
LTC1647-3 Pinout
PIN
DESCRIPTION
1
V
CC1
2
ON1
3
FAULT 1
4
ON2
5
FAULT 2
6
NC
7
NC
8
GND
PIN
5
6
7
8
DESCRIPTION
GATE 2
GATE 1
SENSE 2
SENSE 1
PIN
9
10
11
12
13
14
15
16
DESCRIPTION
NC
NC
NC
GATE 2
GATE 1
SENSE 2
SENSE 1
V
CC2
LTC1647-2 Pinout
PIN
DESCRIPTION
1
V
CC
2
ON1 and FAULT 1
(Internally Tied Together)
3
ON2 and FAULT 2
(Internally Tied Together)
4
GND
PIN
5
6
7
8
DESCRIPTION
GATE 2
GATE 1
SENSE 2
SENSE 1
LTC1647-1 does not have the FAULT status feature.
The ONX/FAULT X must be connected to a driver via a resistor if the
autoretry feature is being used..
PIU
TABLES
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1647-2 | Low Power Timer 14-TSSOP 0 to 70 |
| LTC1647-2CS8 | Low Power Timer 14-TSSOP 0 to 70 |
| LTC1647-2IS8 | Low Power Timer 8-SOIC -40 to 85 |
| LTC1647-3 | Low Power Timer 8-SOIC -40 to 85 |
| LTC1650CS | Low Power LinCMOS<TM> Timer 20-LCCC -55 to 125 |
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