TH3122 Datasheet | Melexis

K-Bus Transceiver with integrated Voltage Regulator Features and Benefits K-Bus Transceiver: PNP-open emitter driver with slew rate control and current limitation BUS input voltage -24V ... 30V (independently of VS) ISO 9141 and ODBII pliant Possibility of BUS wake up Operating voltage VS = 5 16 V Pin Diagram SOIC16 VS EN VTR GND GND BUS SI SO 1 16 VCC SENSE RESET GND GND Tx D Rx D SEN/STA 5 12 6 11 .. Very low standby current consumption <100 µ A in normal mode (< 50 µ A in sleep mode) Linear low drop voltage regulator: Output voltage 5V± 2% Output current max. 100m A Output current limitation Overtemperature shutdown Configurable reset time (15ms/100ms) and reset threshold voltage (3.15V / 4.65V) Low voltage detection at VS Wake-up by K-BUS traffic and start-up capable independent of EN voltage level Universal parator with an input voltage range - 24V … 30V and digital output Load dump protected (40V) Ordering Information Part No. TH3122 Temperature Code K ( -40ºC to 125ºC ) Package Code DF ( SOIC16, 300mil ) General Description The TH3122 consists of a low drop voltage regulator 5V/100m A and a K-Bus transceiver. The transceiver is suitable for K-Bus systems conform to ISO 9141. The bination of voltage regulator and bus transceiver in bination with the monitoring functions make it possible to develop simple, but powerful and cheap nodes in K-Bus systems. The wide output current area and the configurable reset time and reset voltage works together with many different microcontrollers. 3901003122 Rev 004 Page 1 Dec/04 K-Bus Transceiver with integrated Voltage Regulator Functional Diagram Power Supply Over Temp +5V 7.8V 6.8V +5V SENSE .. Reset-Logic VTR-Logic RESET...