ATA5291 - Summary

ATA5291
PEPS Driver and Immobilizer Base Station
SUMMARY DATASHEET
General Features
● Integrated PEPS driver and transponder immobilizer base station
● Internal precision oscillator for carrier generation
● IC power supply voltage from 6V to 28V for PEPS operation
● IC power supply voltage from 4V to 28V for immobilizer operation
● Fast SPI interface (2Mbit/s) for data access and configuration
● Transparent data input and data output pins
● Data transmission and control buffers
● Flexible commands set with LOOP and CALL capability allowing for programmable
polling mode without the need to re-load the data buffer. This mode does not
require any host controller interaction.
● Flexible GPIO pin for control of peripherals independent of host
● Very low power-down current consumption
● QFN 77-48 with wettable flanks
● LF carrier frequency 125kHz
PEPS Driver Features
● 4 integrated PEPS drivers with programmable current up to 1A peak adjustable in
18 steps
● High accuracy PEPS drive current thanks to ±3% internal reference voltage
● Output driver stages are protected against electrical and thermal overload
● Integrated multiplexer to control 8 coils (4 internal and 4 external switches)
● Ability to support antennas with series capacitor far from or close to the IC while
retaining all diagnostic capabilities
● Programmable carrier shaping (sinus, square wave, waveform from wavetable)
● On-off keying (OOK) modulation at continuous wave (CW) frequency /16, /32, /64
This is a summary document.
The complete document is
available under NDA. For more
information, please contact
your local Atmel sales office.
● Integrated boost converter with external boost transistor and current sense resistor
for high LF-drive level
9374AS-RKE-11/15
● Ability to connect two outputs to one coil with full 2A peak current capability
● Ability to drive two coils with 1A peak each at the same time
● Internal current measurement mode without external measurement resistor (R1 in application schematic) to increase
isolation between coils
Immobilizer Base Station Features
● High in-band receiver sensitivity of 7mVpp at tap point with tap voltage of 100Vpp
● Immobilizer driver with sinusoidal output signal for low harmonics
● Narrowband direct conversion digitized receiver for high noise immunity
● 64-byte immobilizer RX buffer to relieve real-time load from host
● Ability to operate with a separated immobilizer coil or with a coil shared between immobilizer and PEPS driver
● Immobilizer antenna current of up to 290mA peak
● Support of uplink/downlink of full duplex transponders (load modulation, physical layer)
2
ATA5291 [SUMMARY DATASHEET]
9374AS–RKE–11/15
1.
General Description
The Atmel® ATA5291 is an integrated circuit combining a LF coil driver for passive entry/passive start (PEPS) and a base
station. It can drive up to eight low-frequency antennas (i.e., coils) to provide a wake-up and initialization channel to the key
fob. The immobilizer base station block can share one antenna coil with the LF coil driver block thus reducing the total
antenna count and related overall system cost.
Pinning
AGND_REF
BCS
BSENSE
VSHF1
A0N
A1N
A2N
A3N
VSHF2
VSHS
B0N
B0P
Figure 2-1. Pinning, QFN48 Package
A0ED
1
48 47 46 45 44 43 42 41 40 39 38 37
36
A1ED
2
35
VS
A2ED
3
34
AVCC33
A3ED
4
33
AGND
VDS1
5
32
VTX
A0P
6
31
RXIN
A1P
7
30
AVCC18
A2P
8
29
DVCC
A3P
9
28
DGND
A0EN
10
27
VIF
A1EN
11
26
CLKOUT
A2EN
12
25
13 14 15 16 17 18 19 20 21 22 23 24
BCG
GPIO1
IRQ
BCNT
MACT
SCLK
MISO
MOSI
NCS
NRES
TESTEN
VCP
VDS2
Atmel
ATA5291
A3EN
2.
ATA5291 [SUMMARY DATASHEET]
9374AS–RKE–11/15
3
3.
Ordering Information
Extended Type Number
Package
ATA5291-GJQW
4.
Remarks
7mm 7mm, Pb-free, 4k, taped and reeled, wettable flanks
QFN48
Packaging Information
Top View
D
48
1
E
PIN 1 ID
technical drawings
according to DIN
specifications
12
Dimensions in mm
A
Side View
A3
A1
Two Step Singulation process
Partially Plated Surface
Bottom View
D2
13
24
25
12
COMMON DIMENSIONS
E2
(Unit of Measure = mm)
1
A
36
48
37
e
MIN
NOM
MAX
A
0.8
0.85
0.9
A1
A3
0
0.16
0.035
0.21
0.05
0.26
D
6.9
7
7.1
D2
5.5
5.6
5.7
E
6.9
7
7.1
E2
5.5
5.6
5.7
L
0.35
0.4
0.45
b
e
0.2
0.25
0.5
0.3
NOTE
L
A (10:1)
Symbol
b
10/18/13
TITLE
Package Drawing Contact:
[email protected]
4
Package: VQFN_7x7_48L
Exposed pad 5.6x5.6
ATA5291 [SUMMARY DATASHEET]
9374AS–RKE–11/15
GPC
DRAWING NO.
REV.
6.543-5130.03-4
1
5.
Appendix A: Acronyms and Abbreviations
BPLM – Binary pulse length modulation
NRZ – Non-return-to-zero modulation
OOK – On-off keying
PEPS – Passive entry/passive start
WUP – Wake-up pattern
6.
Revision History
Please note that the following page numbers referred to in this section refer to the specific revision mentioned, not to this
document.
Revision No.
History
9374AS-RKE-11/15
Initial release
ATA5291 [SUMMARY DATASHEET]
9374AS–RKE–11/15
5
XXXXXX
Atmel Corporation
1600 Technology Drive, San Jose, CA 95110 USA
T: (+1)(408) 441.0311
F: (+1)(408) 436.4200
|
www.atmel.com
© 2015 Atmel Corporation. / Rev.: 9374AS–RKE–11/15
Atmel®, Atmel logo and combinations thereof, Enabling Unlimited Possibilities®, and others are registered trademarks or trademarks of Atmel Corporation in U.S. and
other countries. Other terms and product names may be trademarks of others.
DISCLAIMER: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right
is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN THE ATMEL TERMS AND CONDITIONS OF SALES LOCATED ON THE
ATMEL WEBSITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. IN NO EVENT
SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, CONSEQUENTIAL, PUNITIVE, SPECIAL OR INCIDENTAL DAMAGES (INCLUDING, WITHOUT LIMITATION, DAMAGES
FOR LOSS AND PROFITS, BUSINESS INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF THE USE OR INABILITY TO USE THIS DOCUMENT, EVEN IF ATMEL HAS
BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Atmel
s no representations or warranties with respect to the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and products
descriptions at any time without notice. Atmel does not make any commitment to update the information contained herein. Unless specifically provided otherwise, Atmel products are not
suitable for, and shall not be used in, automotive applications. Atmel products are not intended, authorized, or warranted for use as components in applications intended to support or
sustain life.
SAFETY-CRITICAL, MILITARY, AND AUTOMOTIVE APPLICATIONS DISCLAIMER: Atmel products are not designed for and will not be used in connection with any applications where
the failure of such products would reasonably be expected to result in significant personal injury or death (“Safety-Critical Applications”) without an Atmel officer's specific written
consent. Safety-Critical Applications include, without limitation, life support devices and systems, equipment or systems for the operation of nuclear facilities and weapons systems.
Atmel products are not designed nor intended for use in military or aerospace applications or environments unless specifically designated by Atmel as military-grade. Atmel products are
not designed nor intended for use in automotive applications unless specifically designated by Atmel as automotive-grade.
Similar pages