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参数资料
| 型号： | MAX1480BEPI |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 通用总线功能 |
| 英文描述： | Complete, Isolated RS-485/RS-422 Data Interface |
| 中文描述： | LINE TRANSCEIVER, PDIP28 |
| 封装： | 0.600 INCH, PLASTIC, DIP-28 |
| 文件页数： | 10/21页 |
| 文件大小： | 487K |
| 代理商： | MAX1480BEPI |
M
Complete, Isolated RS-485/RS-422
Data Interface
10
______________________________________________________________________________________
________________________________________________________________Pin Description
Internal Connections. Leave these pins unconnected.
Logic-Side Ground. Connect to GND2 (pin 12).
3, 4
5
3, 4
5
Logic-Side (nonisolated side) +5V Supply Voltages
1, 2, 8, 10
1, 2, 8, 10
FUNCTION
PIN
D1, D2
GND1
V
CC1
–V
CC4
NAME
Shutdown Input. Ground for normal operation. When high, the power oscillator is
disabled.
7
7
Frequency Select Input. If FS = V
CC_
or is open, switch frequency is high; if FS
= GND, switch frequency is low. For optimal performance and minimal supply
current, connect FS to V
CC_
or leave unconnected.
6
6
SD
FS
Logic-Side (non-isolated side) +5V Supply Voltage
—
14
Receiver Output
. If A > B by 200mV, RO will be low; if A < B by 200mV,
RO
will
be high. Open collector; must have pullup to V
CC_
(Table 1 of Figure 1).
—
13
Logic-Side Ground. Connect to GND1 (pin 5).
12
12
V
CC5
RO
GND2
Receiver Output. If A > B by 200mV, RO will be high; if A < B by 200mV, RO
will be low. Open collector; must have pullup to V
CC
(Table 2 of Figure 2).
11
—
Driver-Enable Input. The driver outputs, A and B, are enabled by bringing DE
′
high. The driver outputs are high impedance when DE
′
is low. If the driver out-
puts are enabled, the device functions as a line driver. While the driver outputs
are high impedance, the device functions as a line receiver. Drives internal
LED cathode through a resistor (Table 1 of Figure 1).
—
11
Driver Input. With DE
′
high (MAX1480A/B/C only), a low on DI
′
forces output A
low and output B high. Similarly, a high on DI
′
forces output A high and output
B low. Drives internal LED cathode through a resistor (Table 1 of Figure 1 for
MAX1480A/B/C, Table 2 of Figure 2 for MAX1490A/B).
9
9
RO
DE
DI
Isolated Driver-Input Drive. With DE
′
high (MAX1480A/B/C only), a low on DI
′
forces output A low and output B high. Similarly, a high on DI
′
forces output A
high and output B low. Connect to ISO DI IN (on the MAX1480A/B/C only) for
normal operation. Open-collector output; connect a pullup resistor to ISO V
CC_
(Table 1 of Figure 1 for MAX1480A/B/C; Table 2 of Figure 2 for MAX1490A/B).
Isolated Common. For MAX1480A/B/C, connect to ISO COM2 (pin 16)
(Figures 1 and 2).
15
19
Isolated Supply Voltage. Connect to ISO V
CC1
(pin 26 for MAX1480A/B/C, or
pin 22 for MAX1490A/B).
14
18
Isolated Driver-Enable Drive. The driver outputs, A and B, are enabled by bring-
ing DE
′
high. The driver outputs are high impedance when DE
′
is low. If the driv-
er outputs are enabled, the device functions as a line driver. While the driver
outputs are high impedance, the device functions as a line receiver. Open-
collector output; must have pullup to ISO V
CC_
and be connected to ISO DE IN
for normal operation (Table 1 of Figure 1).
—
17
ISO DI DRV
ISO V
CC2
ISO DE DRV
Isolated Common. Connect to ISO COM1 (pin 20).
—
16
Isolated Receiver Output LED. Internal LED anode in MAX1480A/B/C and LED
cathode in MAX1490A/B. Connect to ISO RO DRV through a resistor (Table 1 of
Figure 1 for MAX1480A/B/C; Table 2 of Figure 2 for MAX1490A/B).
13
15
16
20
ISO COM1
ISO COM2
ISO RO LED
MAX1480A/B/C
MAX1490A/B
PINS ON THE NON-ISOLATED SIDE
PINS ON THE ISOLATED RS-485/RS-422 SIDE
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|---|---|
| MAX1480CEPI | Complete, Isolated RS-485/RS-422 Data Interface |
| MAX1480BCPI | Complete, Isolated RS-485/RS-422 Data Interface |
| MAX1480ACPI | Complete, Isolated RS-485/RS-422 Data Interface |
| MAX1480E | 15kV ESD-Protected, Isolated RS-485/RS-422 |
| MAX1490ACPG | Complete, Isolated RS-485/RS-422 Data Interface |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1480BEPI+ | 功能描述:RS-422/RS-485 接口 IC Isolated RS-422/485 Data Interface RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX1480CCPI | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX1480CCPI+ | 功能描述:RS-422/RS-485 接口 IC Isolated RS-422/485 Data Interface RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX1480CEPI | 功能描述:RS-422/RS-485 接口 IC RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
| MAX1480CEPI+ | 功能描述:RS-422/RS-485 接口 IC Isolated RS-422/485 Data Interface RoHS:否 制造商:Maxim Integrated 数据速率:1136 Kbps 工作电源电压:3 V to 5.5 V 电源电流:5.9 mA 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-28 封装:Tube |
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