도전2022
ICs ideal for T-Box 본문
https://www.ablic.com/en/semicon/applications/telematics-control-unit-cn/
Automotive Telematics Control Unit (T-Box) – ABLIC Inc.
A Telematics-Box (T-Box) is an automotive ECU handling bidirectional communications between a vehicle and the outside world. ABLIC’s lineup includes the industry’s smallest connection diagnosis ICs for supplying power to GNSS antenna amplifiers, LDOs t
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Table of contents
1. Overview
A Telematics-Box (T-Box) is an automotive ECU handling bidirectional communications between a vehicle and the outside world. A T-Box enabling V2X (Vehicle-to-Everything) communications is essential in a connected car. T-Box-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 T-Box, 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 T-Box.
2. Block circuit
Click the product name for more product information.
*VD: Voltage detector (Reset IC) *LDO: Low-dropout regulator *WDT: Watchdog timer *RTC: Real-time clock
3. ICs ideal for T-Box
| Step-up Controller (Switching regulator) |
S-19990 | Low voltage operation (from 3.0V). Low noise. 60μA quiescent current. The industry's smallest package. |
| Battery Protection IC for 1-cell Pack | S-19161A/B | This IC is a protection IC for lithium-ion / lithium polymer rechargeable batteries, which includes high-accuracy voltage detection circuits and delay circuits. |
| LDO Regulator with a current monitor function | S-19700/1 | Used for diagnosing GNSS antenna connections. An LDO regulator IC capable of detecting a variety of connection faults. It can also be used for backup battery charging circuits. |
| High side switch with a current monitor function | S-19680 | Used for diagnosing GNSS antenna connections. Detects short and open circuits and can output alarm signals. |
| LDO Regulator (Linear Regulator) |
S-19246 | Powers WiFi. 10V input, 2A output current. Built-in soft start function. |
| LDO Regulator (Linear Regulator) |
S-19259 | 5.5V input, 1000mA output current. Built-in an inrush current limit circuit. |
| LDO Regulator (Linear Regulator) |
S-19255 | 5.5V input, 300mA output current, PSRR 80dB. Available in an ultra compact (1.0 x 1.0mm) package. 0.1μF input capacitors can be used. |
| LDO Regulator (Linear Regulator) |
S-19212 | Powers the microphone. The output voltage can be set between 2.5 to 16V. |
| LDO Regulator (Linear Regulator) |
S-19310 | Powers and monitors the real-time clock. Industry's lowest current consumption of 2.2µA. With reset function. |
| Watchdog Timer | S-19400/1 | Industry's top class super-low current consumption 3.8µA. With reset function. Available in 2.0 x 3.0mm package. |
| Battery Monitoring IC (Voltage detector) |
S-19113 | Provides undervoltage monitoring. Built-in SENSE Pin reverse connection protection circuit. Current consumption of 0.6µA. |
| Real-Time Clock | S-35390A H | Backup of clock function. Current consumption of 0.25µA. 105°C max. operation. |
| EEPROM | S-93CxxC H (3-wire) |
Serial EEPROM. Built-in data protection functions. 105°C max. operation. |
| EEPROM | S-24CxxC H (2-wire) |
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| EEPROM | S-25CxxxA H (SPI) |