Applications

Automotive Telematics Control Unit

1. Overview

telematics-control-unit

A Telematics Control Unit (TCU) is an automotive ECU handling bidirectional communications between a vehicle and the outside world. A TCU enabling V2X (Vehicle-to-Everything) communications is essential in a connected car. TCU-equipped vehicles can provide functions such as emergency call (eCall), which is mandatory in Europe, OTA (Over the Air), which is used for maintenance and information updates, receiving traffic information and tracking stolen vehicles.
A TCU, the device enabling “Connected”, the “C” in the “CASE” acronym, requires stable communications.
ABLIC's lineup includes the industry's smallest connection diagnosis ICs for supplying power to GNSS antenna amplifiers, LDOs that supply clean power to communication chips, backup RTCs (real-time clocks) and the industry's lowest current consumption LDOs ideal for powering backup RTCs. ABLIC provides a number of ICs ideal for a TCU.

2. Block Circuit

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S E N S E G N S S V D D M C U A pp l i e d a s CC C V c h a r g in g c i r c u i t B a ck u p S t e p - d o w n D C - D C S t e p - d o w n D C - D C W i F i L T E M i c ro p h on e 1 2 V B a t t e r y N i - M H B a ck u p B a t t e r y L i - i o n B a ck u p B a t t e r y o r L D O + V D R T C L D O W D T + V D L D O EE P RO M L D O L D O

*VD: Voltage detector (Reset IC) *LDO: Low-dropout regulator *WDT: Watchdog timer *RTC: Real-time clock

3. ICs ideal for Telematics Control Unit

ICs ideal for Telematics Control Unit - Step-up Controller

ICs ideal for Telematics Control Unit - Lithium-ion Battery Protection IC

ICs ideal for Telematics Control Unit - Connection Diagnosis IC

ICs ideal for Telematics Control Unit - LDO Regulator

ICs ideal for Telematics Control Unit - Watchdog Timer

ICs ideal for Telematics Control Unit - Battery Monitoring IC

ICs ideal for Telematics Control Unit - Real-Time Clock

ICs ideal for Telematics Control Unit - Serial EEPROM