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參數(shù)資料
| 型號(hào)： | LT1537CSW#TR |
| 廠商： | Linear Technology |
| 文件頁(yè)數(shù)： | 3/8頁(yè) |
| 文件大小： | 0K |
| 描述： | IC TXRX RS232 5V LP CAPS 28SOIC |
| 標(biāo)準(zhǔn)包裝： | 1,000 |
| 類型： | 收發(fā)器 |
| 驅(qū)動(dòng)器/接收器數(shù)： | 3/5 |
| 規(guī)程： | RS232 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC |
| 包裝： | 帶卷 (TR) |
3
LT1537
ELECTRICAL C
C
HARA TERISTICS
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Any Driver
Output Leakage Current
Shutdown VOUT = ±15V (Note 4)
q
10
100
A
Data Rate
RL = 3k, CL = 2500pF
120
kBaud
RL = 3k, CL = 1000pF
250
kBaud
Slew Rate
RL = 3k, CL = 51pF
15
30
V/
s
RL = 3k, CL = 2500pF
4
15
V/
s
Propagation Delay
Output Transition tHL HIGH to LOW (Note 5)
0.6
1.3
s
Output Transition tLH LOW to HIGH
0.5
1.3
s
Any Receiver
Input Voltage Thresholds
Input LOW Threshold (VOUT = HIGH)
q
0.8
1.3
V
Input HIGH Threshold (VOUT = LOW)
q
1.7
2.4
V
Hysteresis
q
0.1
0.4
1.0
V
Input Resistance
VIN = ±10V
3
5
7
k
Output Voltage
Output LOW, IOUT = – 1.6mA
q
0.2
0.4
V
Output HIGH, IOUT = 160A (VCC = 5V)
q
3.5
4.2
V
Output Leakage Current
Shutdown (Note 4) 0
≤ VOUT ≤ VCC
q
110
A
Output Short-Circuit Current
Sinking Current, VOUT = VCC
– 20
– 10
mA
Sourcing Current, VOUT = 0V
10
20
mA
Propagation Delay
Output Transition tHL HIGH to LOW (Note 6)
250
600
ns
Output Transition tLH LOW to HIGH
350
600
ns
The q denotes specifications which apply over the operating temperature
range (0
°C ≤ TA ≤ 70°C for commercial grade and –40°C ≤ TA ≤ 85°C for
industrial grade).
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Testing done at VCC = 5V and VON/OFF = 3V. C1 = C2 = 0.2F,
C+ = C – = 0.1
F.
Note 3: Supply current is measured with driver and receiver outputs
unloaded and the driver inputs tied high.
Note 4: Supply current and leakage current measurements in shutdown
are performed with VON/OFF = 0.1V. Supply current measurements using
DRIVER DISABLE are performed with VDRIVER DISABLE = 3V.
Note 5: For driver delay measurements, RL = 3k and CL = 51pF. Trigger
points are set between the driver’s input logic threshold and the output
transition to the zero crossing (tHL = 1.4V to 0V and tLH = 1.4V to 0V).
Note 6: For receiver delay measurements, CL = 51pF. Trigger points are set
between the receiver’s input logic threshold and the output transition to
standard TTL/CMOS logic threshold (tHL = 1.3V to 2.4V and tLH = 1.7V to
0.8V).
Note 7: Absolute maximum externally applied voltage. Internal charge
pump may force a larger value on this pin.
CC
HARA TERISTICS
UW
A
TYPICALPERFOR
CE
(Note 2)
Driver Output Voltage
Receiver Input Thresholds
Supply Current vs Data Rate
DATA RATE (kBAUD)
0
SUPPLY
CURRENT
(mA)
30
40
50
75
125
LTX1537 TPC03
20
10
0
25
50
100
60
70
80
150
3 DRIVERS ACTIVE
RL = 3k
CL = 2500pF
TEMPERATURE (
°C)
–55
0.50
THRESHOLD
VOLTAGE
(V)
0.75
1.25
1.50
1.75
3.00
2.25
0
50
75
ILT1537 TPC02
1.00
2.50
2.75
2.00
–25
25
100
125
INPUT HIGH
INPUT LOW
TEMPERATURE (
°C)
–50
–10
DRIVER
OUTPUT
VOLTAGE
(V)
–8
–4
–2
0
10
4
0
50
75
LT1537 TPC01
–6
6
8
2
–25
25
100
125
VCC = 5V
VCC = 5.5V
VCC = 4.5V
VCC = 5.5V
VCC = 4.5V
VCC = 5V
OUTPUT LOW
OUTPUT HIGH
RL = 3k
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