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ATMEL Corporation - (ATA6285 / ATA6286) TPMS Control and Transmitter IC

Numéro de référence ATA6286
Description (ATA6285 / ATA6286) TPMS Control and Transmitter IC
Fabricant ATMEL Corporation 
Logo ATMEL Corporation 





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Features
Programmable AVR® 8-bit Flash Microcontroller Transmitter IC
Frequency: 315 MHz (ATA6285) and 433 MHz (ATA6286)
Support ASK/FSK Modulation with Integrated FSK Switch
6 dBm Output Power with Typically 8.5 mA Active Current Consumption in
Transmission Mode
Low-power Microcontroller Requires Typically 0.6 µA Sleep Current with Active Interval
Timer
Interfaces for Simple Capacitive Sensors (2 pF to 6 pF)
One Interface Can Be Configured for Motion Wake-up (3 pF to 5 pF)
Typically 25 mbar ADC Resolution for Pressure Measurement with Dedicated Sensor
Type
Low-power Measurement Mode for Directly Connected Capacitive Sensors Typically
200 µA at 1 MHz System Clock
Programmable 125 kHz Wake-up Receiver Channel with Typically 1.7 µA Current
Consumption in Listing Mode
2V to 3.6V Operation Voltage for Single Li-cell Power Supply
–40°C to +125°C Operation Temperature and –40°C to +150°C Storage Temperature
Less then 10 External Passive Components
QFN32 (5 mm × 5 mm) Package
1. Description
ATA6285 and ATA6286 are highly integrated smart RF micro transmitter ICs for
315 MHz and 433 MHz, suited for ASK and FSK with typically 20 Kbits/s data rate in
Manchester mode. The devices combine the functionality of the RF transmitter ICs
ATA5756/ATA5757 with the programmable low-power AVR 8-bit Flash microcontroller
in a single QFN32 package (5 mm × 5 mm). The ATA6285 and ATA6286 include a
dedicated ADC interface for simple capacitive sensors as well as an on-chip tempera-
ture sensor. Three sensor interfaces are available for a capacitive range of 2 pF to
16 pF, where one channel can be configured as motion wake-up in the range of 3 pF
to 5 pF. The ICs are suited for use in tire pressure monitoring (TPMS) sensor gauges
in combination with external sensor devices.
The programmable AVR 8-bit Flash microcontroller includes 8 Kbytes of in-system
self-programmable Flash memory and an 320-Bytes EEPROM, thus allowing the sys-
tem integrator to install field-programmable firmware to enable system flexibility on
different platforms. ATA6285 and ATA6286 can be configured to guarantee extremely
low power consumption in sleep mode and measurement mode. They also include a
programmable 125 kHz wake-up receiver channel for extremely low current consump-
tion in listening mode. The ICs are designed for use in applications with typically less
then 10 passive components: one external crystal for the sensor gauge, several
capacitors, a single LiMnO2 battery coin cell, a single-ended antenna for the data
transmission and an LF ferrite coil for the wake-up channel. ATA6285 and ATA6286
support TPMS-specific low-current modes even with an active brown-out detection
and an interval timer.
TPMS Control
and Transmitter
IC
ATA6285
ATA6286
Summary
Preliminary
NOTE: This is a summary document.
The complete document is available
under NDA. For more information,
please contact your local Atmel sales
office.
4958AS–AUTO–09/06
DataSheet4 U .com

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ATA6285 TPMS Control and Transmitter IC ATMEL Corporation
ATMEL Corporation
ATA6286 (ATA6285 / ATA6286) TPMS Control and Transmitter IC ATMEL Corporation
ATMEL Corporation

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