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參數(shù)資料
| 型號(hào)： | 522991B |
| 英文描述： | Dual/Triple Ultra-Low-Voltage SOT23 µP Supervisory Circuits |
| 中文描述： | 集成電路 |
| 文件頁(yè)數(shù)： | 4/8頁(yè) |
| 文件大?。?/td> | 219K |
| 代理商： | 522991B |
4
LTC1481
TYPICAL PERFOR
M
A
CE CHARACTERISTICS
U
Driver Output High Voltage
vs Output Current
OUTPUT VOLTAGE (V)
0
O
4
5
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
1481 G04
1
2
3
T
A
= 25°C
TEMPERATURE (°C)
–50
3.0
2.5
2.0
1.5
1.0
0.5
0
25
75
1481 G05
–25
0
50
100
125
T
TEMPERATURE (°C)
–50
14
12
10
8
6
4
2
0
25
75
1481 G05
–25
0
50
100
125
T
Driver Skew vs Temperature
Receiver
t
PLH
– t
PHL
vs
Temperature
FU
U
LTC1481 Transmitting
INPUTS
DE
1
1
0
0
OUTPUTS
B
0
1
Z
Z*
RE
X
X
0
1
DI
1
0
X
X
A
1
0
Z
Z*
*Shutdown mode for LTC1481
LTC1481 Receiving
INPUTS
DE
0
0
0
0
OUTPUTS
RO
1
0
1
Z*
RE
0
0
0
1
A – B
≥
0.2V
≤
–0.2V
Inputs Open
X
*Shutdown mode for LTC1481
DI (Pin 4):
Driver Input. If the driver outputs are enabled
(DE high) then a low on DI forces the outputs A low and B
high. A high on DI with the driver outputs enabled will force
A high and B low.
GND (Pin 5):
Ground.
A (Pin 6):
Driver Output/Receiver Input.
B (Pin 7):
Driver Output/Receiver Input.
V
CC
(Pin 8):
Positive Supply. 4.75V < V
CC
< 5.25V.
PI
FU
CTIO
N
S
U
U
RO (Pin 1):
Receiver Output. If the receiver output is
enabled (RE low), then if A > B by 200mV, RO will be high.
If A < B by 200mV, then RO will be low.
RE (Pin 2):
Receiver Output Enable. A low enables the
receiver output, RO. A high input forces the receiver
output into a high impedance state.
DE (Pin 3):
Driver Outputs Enable. A high on DE enables
the driver output. A, B and the chip will function as a line
driver. A low input will force the driver outputs into a high
impedance state and the chip will function as a line
receiver. If RE is high and DE is low, the part will enter a low
power (1
μ
A) shutdown state.
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