NCN5151
Description
The NCN5151 is a single-chip integrated slave transceiver for use in two-wire Meter Bus (M-BUS) slave devices and repeaters. The NCN5151 reuses the NCN5150 features and adds two low power modes: a 2-wire low power mode dedicated to System for meter munication and Readout for powerless meters (SCR) and a 3-wire low power mode allowing support for wireless applications.
Key Features
- Single-chip M-BUS Transceiver
- 2 and 3-Wire Low Power Modes with Selection Input Pins
- Integrated 3.3 V VDD LDO Regulator with Extended Peak Current Capability of 15 mA
- Supports Powering Slave Device from the Bus
- Adjustable Constant Current Sink Up to 6 Unit Loads in M-Bus Mode
- Adjustable Current Limit up to 2 Unit Loads in Low Power Mode
- Current budget of 0.88 mA minimum for external circuits
- Low Turn-ON/OFF Levels for Low Bus Voltage Operation
- Polarity Independent
- Power-Fail Function (M-Bus mode)
