The RF650 radio transceiver module provides a reliable wireless communications for the transfer of data at Gaussian Frequency Shift Keying (GFSK), Manchester encoded, RF data rates of up to 100 kbps. Their unique features of narrow band operation and user channel selection combined with excellent interference rejection make them an ideal choice for next generation applications. The transceivers have the functions of a complete radio modem and simply require CMOS/TTL data at the transmit input and the corresponding transceiver(s) output the same data. Preamble and CRC are automatically generated and added to the RF transmission.
Operating within the 433MHz band the modules operate in user selectable channels. The RF650 can use any channel in 100kHz steps. The modules both use a crystal controlled design which provides narrow band performance which is far superior to other wideband ‘SAW’ based designs.
Possible applications include one-to-one and multi-node wireless links in applications including car and building security, EPOS, inventory tracking, remote industrial process monitoring and computer networking. Because of their small size and low power requirements, both modules are ideal for use in portable, batterypowered applications such as hand-held terminals.

*Intelligent Modem RF Transceiver
*RF Data Rates to 100 kbps
*Up to 250 metres Range
*Selectable ‘Narrowband’ RF Channels
*Crystal Controlled RF Design
*Supply Voltage 3.3V
*Serial Data Interface with Handshake
*Host Data Rates up to 38,400 Baud
*Very Stable Operating Frequency
*Low Profile Ceramic DIL Package
*Operates from –20 to +70 0C
*Evaluation Board for Rapid Development

*Wireless Security Systems
*EPOS Terminals
*Sensor Data logging
*Remote Telemetry & Telecommand
*Remote Meter Reading

RF650-868, RF650-EVAL

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The SMART HotPlug Integrated Circuit combines the control function and power FET into a single IC that saves design time and reduces the number of components required for a complete hot swap application. It is designed to allow safe insertion and removal of electronic equipment to −48 V backplanes. This chip features simplicity of use combined with an integrated solution.

 The SMART HotPlug includes user selectable undervoltage and overvoltage lockout levels. It also has adjustable current limiting that can be reduced from the maximum level with a single resistor. Operation at the maximum current level requires no extra external components. An internal temperature shutdown circuit greatly increases the reliability of this device.

• Integrated Power Device
• 100 V Operation
• Thermal Limit Protection
• Adjustable Current Limit
• No External Current Shunt Required
• Undervoltage and Overvoltage Lockouts
• 6.5 A Continuous Operation
• UIS Rated
• Main/Mirror MOSFET Current Ratio 820:1
• Pb−Free Packages are Available

 Typical Applications
• VoIP (Voice over Internet Protocol) Servers
• −48 V Telecom Systems
• +24 V Wireless Base Station Power
• Central Office Switching
• Electronic Circuit Breaker


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• 500V 3.0A 3-phase FRFET inverter including high voltage integrated circuit (HVIC)
• 3 divided negative dc-link terminals for inverter current sensing applications
• HVIC for gate driving and undervoltage protection
• 3/5V CMOS/TTL compatible, active-high interface
• Optimized for low electromagnetic interference
• Isolation voltage rating of 1500Vrms for 1min.
• Extended VB pin for PCB isolation

General Description
 FSB50450T is a tiny smart power module (SPM) based on FRFET technology as a compact inverter solution for small power motor drive applications such as fan motors and water suppliers. It is composed of 6 fast-recovery MOSFET (FRFET), and 3 half-bridge HVICs for FRFET gate driving. FSB50450T provides low electromagnetic interference (EMI) characteristics
with optimized switching speed. Moreover, since it employs FRFET as a power switch, it has much better ruggedness and larger safe operation area (SOA) than that of an IGBT-based
power module or one-chip solution.

 The package is optimized for the thermal performance and compactness for the use in the built-in motor application and any other application where the assembly space is concerned. FSB50450T is the most solution for the compact inverter providing the energy efficiency, compactness, and low electromagnetic interference.

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