ATAK42001-V1 Microchip

APPLICATION NOTE ATAK42001-V1 Development Kit for the ATA664151 Atmel IC ATAN0059 Introduction The development kit for the Atmel ATA664151 IC consists of the PC interface board (ATAB0004A-V2.0) and the Atmel ATA664151 application board (ATAB664xA-V2.0) attached together. The kit provides users with a quick start guide for prototyping and testing new LIN designs with the ATA664151 IC. Figure 1. Atmel ATAK42001-V1 Development Kit The Atmel ATA664151 is a system basis chip with an eight-channel high-voltage switch interface with HV current sources, a LIN 2.1 and SAEJ2602-2-compliant LIN transceiver, a 5V low-drop voltage regulator with up to 80mA current capability and an adjustable window watchdog. This chip combination makes it possible to develop simple, inexpensive, yet powerful slave and master nodes for LIN bus systems. The Atmel ATA664151 is designed in particular for LIN switch applications and includes nearly the entire LIN node. The devel- opment board is designed to handle low data-rate communication in vehicles (such as in convenience electronics). Improved slope control at the LIN driver ensures secure data communication up to 20Kbaud. Sleep mode and active low-power mode guarantee minimal current consumption even if there is a floating bus line or short circuit on the LIN bus to GND. 9284E-AUTO-02/15 The Atmel LIN SBC ATA664151 has the following features: LIN master and slave operation possible Up to 40V supply voltage Operating voltage V = 5V to 27V S 8-channel HV switch interface with HV current sources Internal voltage divider for VBattery sensing (2%) 16-bit serial interface (daisy-chain-capable) for configuration and diagnosis Typically 8A supply current during sleep mode Typically 35A supply current in active low-power mode 5V 2% linear low-drop voltage regulator, up to 80mA current capability VCC undervoltage detection (5ms reset time) and watchdog reset logical combined at NRES open drain output LIN high-speed mode for transmission rates up to 200kBit/s Adjustable watchdog timer via external resistor Negative trigger input for watchdog LIN physical layer complies with LIN 2.1 specification and SAE J2602-2 Wake-up capability via LIN bus and CL15 Bus pin is overtemperature and short-circuit protected versus GND and battery Advanced EMC and ESD performance System-level ESD performance conforming with OEM Hardware Requirements for LIN in Automotive Applications Rev. 1.2 3x PWM inputs for direct control of the switch interface current sources This document has been developed to provide the user with start-up information about the Atmel ATAK42001-V1 development kit. Refer to the appropriate datasheet for more information about the use of the devices themselves. 2 ATAN0059 APPLICATION NOTE 9284EAUTO02/15