iC-HD2 4通道差分线驱动器

iC-HD2

QUAD DIFFERENTIAL LINE DRIVER

Complementary short-circuit-proof push-pull driver stages for

RS422 and 24 V applications up to 2MHz

Pin-compatible to xx2068

Integrated line adaptation for high signal quality at 24V

Moderate slew rate reduces EMI

High driving capability of typically 200mA at 24V

Output saturation of just 0.3 V at 40 mAdc

Tristate function with excessive temperature

Error messaging with excessive temperature and undervoltage

TTL-/CMOS-compatible Schmitt trigger inputs,

voltage-proof to 40 V

Tristate function for bus applications

Integrated 5 V voltage regulator for 5mA

4.5 to 35 V single supply operation with low static power

dissipation

Operating temperature from -25 to 125 C (-40 C is optional)

Line drivers for 24 V control

engineering

Linear scales and encoders

Sensor systems

iC-HD is a robust line driver for industrial 5 V and 24 V

applications with four complementary output channels.

For signal lines with a characteristic impedance of

30 to 140

the integrated line adapter, optimized

to 75

, minimizes ringing effects which arise when

there is no line termination.

At a supply of 24 V the push-pull driver stages typically

provide 200mA to discharge the line and also

have a low saturation voltage (of typically 200mV

with a 40mA low-side load). The outputs are current

limited and short-circuit-proof, shutting down with excessive

temperature.

For bus applications the driver stages can be

switched to high impedance by a high at input NEN.

The driver stage inputs have a Schmitt trigger characteristic

and are compatible with CMOS and TTL

levels.

The device recognizes undervoltage at voltage regulator

output VREF and thus indirectly also at supply

voltage VB. VREF acts as a 5 V voltage supply for

external loads of up to 5 mA.

Excessive temperature and undervoltage are signaled

as an error by a low signal at the short-circuitproof

NERR output. For test purposes the temperature

monitor can be deactivated by applying a voltage

of greater than 12 V to input NEN.

The iC-HD contains internal ESD protection circuitry.

iC-Haus 线驱动器iC在工业控制系统驱动编码器信号过长线。

24V线驱动器转换逻辑电平到24V，降低信号对工业环境干扰敏感度。iC-Haus 也推出一款6通道5V线驱动器带 Encoder Link，成为超灵活接口：提供模拟旁路，BiSS组网模式等等。

应用:控制和自动化设备位置传感器