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參數(shù)資料
| 型號： | LTC1645C |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 8-Bit, 40 MSPS ADC Single Ch., Internal S&H, Low Power 24-TSSOP -40 to 85 |
| 中文描述： | 雙通道熱插拔控制器/電源序列 |
| 文件頁數(shù)： | 3/24頁 |
| 文件大小： | 312K |
| 代理商： | LTC1645C |
3
LTC1645
SYMBOL
V
TM
V
TM
I
TM
PARAMETER
TIMER Pin Voltage Threshold
TIMER Pin Threshold Line Regulation
TIMER Pin Current
CONDITIONS
MIN
1.212
TYP
1.230
1
–2
12
50
50
1.5
–10
40
12
MAX
1.248
9
–1.7
UNITS
G
V
V
CC1
= 2.375V to 12V
Timer On, V
TIMER
= 0.6V, V
CC1
= 5V
Timer Off, V
TIMER
= 1.5V
V
CB1
= (V
CC1
– V
SENSE1
)
V
CB2
= (V
CC2
– V
SENSE2
)
V
CBn
= (V
CCn
– V
SENSEn
) > 60mV
ON = 2.2V, V
GATEn
= V
CCn
, V
CC1
= 5V, V
CC2
= 3.3V
ON = 0.7V, V
GATEn
= V
CCn
, V
CC1
= 5V, V
CC2
= 3.3V
ON = 0.3V, V
GATEn
= V
CCn
, V
CC1
= 5V, V
CC2
= 3.3V
V
GATEn
= (V
GATEn
– V
CCn
)
Low to High
High to Low, Fast Pull-Down Engaged
Low to High, GATE1 Turns On
High to Low, GATE1 Turns Off
Low to High, GATE2 Turns On
High to Low, GATE2 Turns Off
G
mV
μ
A
mA
mV
mV
μ
s
μ
A
μ
A
mA
G
–2.3
V
CB1
V
CB2
t
CBDn
I
CP
Circuit Breaker Trip Voltage 1
Circuit Breaker Trip Voltage 2
Circuit Breaker Trip Delay
GATEnPin Output Current
G
46
46
56
56
G
G
G
–12.5
30
–7.5
50
V
GATEn
V
ONFPD
External N-Channel Gate Drive
ON Pin Fast Pull-Down Threshold
G
4.5
0.375
0.35
0.8
0.775
2
1.975
16
V
V
V
V
V
V
V
G
G
0.4
0.375
0.825
0.8
2.025
2
25
±
0.01
0.16
0.425
0.4
0.85
0.825
2.050
2.025
V
ON1
ON Pin Threshold #1
G
G
V
ON2
ON Pin Threshold #2
G
G
V
ONHYST
I
ON
V
OL
ON Pin Hysteresis
ON Pin Input Current
Output Low Voltage
mV
μ
A
V
CC1
= 5V, V
CC2
= 3.3V
RESET, FAULT, COMPOUT, I
OUT
= 1.6mA, V
CC1
= 5V
G
±
2
0.4
G
V
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.
The
G
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T
A
= 25
°
C.
2.375V
≤
V
CC1
≤
12V, 1.2V
≤
V
CC2
≤
12V unless otherwise noted (Note 2).
Note 3:
An internal zener on the GATEnpins clamps the charge pump
voltage to a typical maximum operating voltage of 22V. External overdrive
of a GATE pin (for example, from capacitive coupling of V
CCn
glitches)
beyond the internal zener voltage may damage the device. If a lower
GATEnpin clamp voltage is desired, use an external zener diode.
V
CC1
Supply Current vs Voltage
V
CC2
Supply Current vs Voltage
V
CC1
(V)
0
I
C
1.0
2.0
3.0
0.5
1.5
2.5
4
6
8
10
1645 G01
12
3
2
5
7
9
11
T
A
= 25
°
C
V
CC2
= 1.5V
V
CC2
= 12V
V
CC2
(V)
0
I
C
0.5
1.5
2.0
2.5
3.5
1
5
7
1645 G02
1.0
3.0
4
9
10 11 12
2
3
6
8
T
A
= 25
°
C
V
CC1
= 2.375V
V
CC1
= 12V
Supply Current vs Temperature
TEMPERATURE (
°
C)
–40
0.8
1.0
1.4
20
60
1645 G03
0.6
0.4
–20
0
40
80
100
0.2
0
1.2
I
C
V
CC1
= 5V
V
CC2
= 3.3V
I
CC1
I
CC2
ELECTRICAL CHARACTERISTICS
TYPICAL PERFOR U
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