Toshiba Starts Mass Production of System Regulator IC with Monitoring Function for Electric and Hybrid Vehicles

- Strengthened monitoring function contributes to safer vehicle systems -

TOKYO — (BUSINESS WIRE) — October 15, 2015Toshiba Corporation's (TOKYO:6502) Semiconductor & Storage Products Company today announced the mass production start of "TB9042FTG", a system regulator IC with monitoring function for the motor control system of electric and hybrid vehicles. The new IC is optimized for high efficiency systems, with a strengthened monitoring function to reduce potential risks that threaten the security of the system.

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Toshiba: "TB9042FTG", a system regulator IC with monitoring function for the motor control system of ...

Toshiba: "TB9042FTG", a system regulator IC with monitoring function for the motor control system of electric and hybrid vehicles. (Photo: Business Wire)

Failure of the system regulator IC leads to malfunction of electronic devices. The system particularly loses functionality when microcontroller (MCU) failure impacts on operation. “TB9042FTG” provides an SPI communication function to avoid this dangerous condition. The system regulator IC and the MCU identify trouble at the time of the abnormality by using the SPI communication function to monitor each other. Using the derived information, the system can carry out safe and timely processing.

Key Features

  • Two DCDC converters and three series regulators are built in
  • Various monitoring functions
    • Continuous monitoring of the system regulators.
      (High output voltage, Low output voltage, Overcurrent, Overheat, Unusual frequency)
    • Continuous monitoring of the MCU
      (Watchdog Timer, MCU alarm, MCU calculation function, Communication error)
    • Self-diagnosis function
      (High output voltage, Low output voltage, Output logic of each detection circuit)
  • SPI communication[1] reports the monitoring state to external system
  • When an unusual condition occurs, the output terminal immediately reports the monitored state to the external system. (Reset timer (RSTA/B), unusual voltage detection (NOVDET), MCU alarm (NOALM), All diagnosis result report (NDIAG)
 

Main Specifications

Part Number   TB9042FTG
Supply Voltage

Supply voltage range: 7 to 20.1V
Absolute maximum input voltage: 40V (1S)

DC-DC Converter

(Output Voltage/Current)

DCDC1 (Step down): 6V / 1A
DCDC2 (Step up): 1.5V or 1.2V / 1A

Series Regulator

(Output Voltage/Current)

LDO1: 5V / 400mA
LDO2: 5V / 100mA
VBU: 5V or 3.3V / 10mA

Monitoring Function - Continuous monitoring of the system regulator
- Continuous monitoring of the MCU diagnosis
- Self-diagnosis
SPI Communication - Notifications when the failure is detected in the system regulator
- Data judgment function for MCU diagnosis
Package   HQFN52 (8mm×8mm×0.9mm)

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