AS8515-ZMFP

AS8515-ZMFP Datasheet

Datasheet AS8515 Data Acquisition System with Power Management and LIN Transceiver for 12V Battery Sensor Applications

Part	Datasheet
AS8515-ZMFP	AS8515-ZMFP (pdf)

Related Parts	Information
AS8515-ZMFM	AS8515-ZMFM

PDF Datasheet Preview
high performance needs great design. Datasheet AS8515 Data Acquisition System with Power Management and LIN Transceiver for 12V Battery Sensor Applications Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams. AS8515 Data Acquisition System with Power Management and LIN Transceiver for 12V Battery Sensor Applications 1 General Description The AS8515 is designed for simultaneous measurement of shunt current sensor signal and battery voltage by two independent ADC channels. Both channels can measure small signals up to ±160 mV versus ground through programmable gain amplifier or larger signals in the 1V range without amplifier. After analog to digital conversion and digital filtering, the resulting digital values are accessible through 4-wire serial interface. The device is powered directly from the battery through LDO and provides a 3.3V supply for an external microcontroller. For communication with the next level ECU, the device offers a LIN transceiver. Measurement of battery voltage is supported through resistive attenuator with disable for power saving in standby. The device is a stacked die system providing a high voltage CMOS IC for power management and transceiver functions as a Top die and low voltage sensor interface functions as a Bottom die inside a 32-pin MLF 5x5 mm package. temperature sensor acquisition for both ADC channels source high precision and high stability auto zero architecture on both channels monitoring comparator with interrupt signal generation and µC clock enable. Timer with 2 related outputs for single shot sampling of current and voltage channel in low power mode. on chip RC oscillator or external clock. Low slew, low EMC clock output which can be used by external microcontroller which is enabled respectively disabled by mode control through SPI and interrupt from current monitor in low power mode. The integrated circuit can execute measurements with internal and external sensors and sources for the voltage channel and with external sensor for the current channel. 2 Key Features precision voltage attenuator with power down facility transceiver Reset with OTP adjustable reset timeout and brownout detection window Watchdog function in the normal mode and a timeout Watchdog in the device standby mode as a factory option dump protection 42V for all battery supplied pins, LIN bus pin, and Enable pin temperature warning & shutdown functions independent high resolution A/D converters with programmable over sampling ratio sampling rate up to 4kHz throughput External Sensors measurement via Shunt resistor 4 ranges voltage internal voltage divider to battery and ETS for external temperature sensor with switchable current source Internal Sensors chip temperature sensor current sources for functional test of measurement path and the connection of shunt resistor 3 Applications The AS8515 is suitable for battery sensors, having shunt current sensor at minus pole. For lead acid, AGM, Li-Ion batteries up to 18V nominal, 42V over voltage capability. The device is also ideal as a general purpose sensor interface for automotive LIN slaves. gain, low noise amplifier for current channel with gain stages 5, 25, 40, 100 1 - 62 AS8515 Datasheet - Applications Figure AS8515 Block Diagram ETS ETR hp_clk VSUP RSHH RSHL VSENSE VSENSE_IN VSENSE_GND AS8515 10 Application Information 57 11 Package Drawings and 58 12 Ordering 61 4 - 62 AS8515 Datasheet - Pin Assignments 4 Pin Assignments Figure Pin Assignments Top View RSHH EN RESET Rx Tx CST INT RSHL 1 VREF 2 VCM 3 AVDD 4 AVSS 5 ETR 6 ETS 7 VSENSE_IN 8 AS8515 24 CLK 23 SDI 22 MEN 21 CHOP_CLK 20 DVDD 19 DVSS 18 SDO 17 SCLK VSENSE_GND LIN VSS VSENSE VSUP VCC CSB Pin Descriptions Table Pin Descriptions Pin Name RSHL Pin Number 1 VREF AVDD 1 AVSS 2 Pin Type Analog input Analog output Analog output Analog input Power supply Negative differential input for current channel Internal reference voltage to Sigma Delta ADC Connect 100nF to AVSS from this pin. Common mode voltage to the internal measurement path Connect 100nF to AVSS from this pin. +3.3V Power-supply Supplied by LDO output VCC in Top die Should be shorted to pin 21 VCC externally. 0V Power-supply Ground analog 5 - 62 AS8515 Datasheet - Pin Assignments Table Pin Descriptions Pin Name ETR ETS VSENSE_IN VSENSE_GND LIN VSS 2 VSENSE VSUP VCC 1 CSB SCLK SDO DVSS2 DVDD 1 CHOP_CLK SDI CLK INT CST Tx Rx RESET EN RSHH Pin Number 6 7 8 9 10 11 14 15 16 17 18 19 23 24 25 26 27 28 29 30 31 32 Updated Operating Conditions, Electrical Characteristics, Ordering Information, Figure Table 27, Table 29, Table 30, Table 60 - 62 AS8515 Datasheet - Ordering Information 12 Ordering Information The devices are available as the standard products shown in Table Table Ordering Information Ordering Code AS8515-ZMFP AS8515-ZMFM Description Data acquisition system with power management and LIN transceiver Delivery Form Tape & Reel 5000 pcs Tape & Reel 500 pcs Package 32-pin MLF 5x5 mm Note All products are RoHS compliant and ams green. Buy our products or get free samples online at ICdirect: Technical Support is available at For further information and requests, please contact us mailto or find your local distributor at 61 - 62 AS8515 Datasheet - Copyrights Copyrights Copyright 1997-2012, ams AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies. Disclaimer Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services. Contact Information Headquarters ams AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01 For Sales Offices, Distributors and Representatives, please visit: 62 - 62

PDF Datasheet Preview

high performance needs great design.

Datasheet AS8515 Data Acquisition System with Power Management and LIN Transceiver for 12V Battery Sensor Applications

Please be patient while we update our brand image as austriamicrosystems and TAOS are now ams.

AS8515

Data Acquisition System with Power Management and LIN Transceiver
for 12V Battery Sensor Applications
1 General Description

The AS8515 is designed for simultaneous measurement of shunt current sensor signal and battery voltage by two independent ADC channels. Both channels can measure small signals up to ±160 mV versus ground through programmable gain amplifier or larger signals in the 1V range without amplifier. After analog to digital conversion and digital filtering, the resulting digital values are accessible through 4-wire serial interface. The device is powered directly from the battery through LDO and provides a 3.3V supply for an external microcontroller. For communication with the next level ECU, the device offers a LIN transceiver. Measurement of battery voltage is supported through resistive attenuator with disable for power saving in standby.

The device is a stacked die system providing a high voltage CMOS IC for power management and transceiver functions as a Top die and low voltage sensor interface functions as a Bottom die inside a 32-pin MLF 5x5 mm package.
temperature sensor
acquisition for both ADC channels
source high precision and high stability
auto zero architecture on both channels
monitoring comparator with interrupt signal generation and µC clock enable. Timer with 2 related outputs for single shot sampling of current and voltage channel in low power mode.
on chip RC oscillator or external clock. Low slew, low EMC clock output which can be used by external microcontroller which is enabled respectively disabled by mode control through SPI and interrupt from current monitor in low power mode.

The integrated circuit can execute measurements with internal and external sensors and sources for the voltage channel and with external sensor for the current channel.
2 Key Features
precision voltage attenuator with power down facility
transceiver

Reset with OTP adjustable reset timeout and brownout detection
window Watchdog function in the normal mode and a timeout Watchdog in the device standby mode as a factory option
dump protection 42V for all battery supplied pins, LIN bus pin, and Enable pin
temperature warning & shutdown functions
independent high resolution A/D converters with programmable over sampling ratio
sampling rate up to 4kHz throughput

External Sensors measurement via Shunt resistor 4 ranges
voltage internal voltage divider to battery
and ETS for external temperature sensor with switchable current source

Internal Sensors chip temperature sensor
current sources for functional test of measurement path and the connection of shunt resistor
3 Applications

The AS8515 is suitable for battery sensors, having shunt current sensor at minus pole. For lead acid, AGM, Li-Ion batteries up to 18V nominal, 42V over voltage capability. The device is also ideal as a general purpose sensor interface for automotive LIN slaves.
gain, low noise amplifier for current channel with gain stages 5, 25, 40, 100
1 - 62

AS8515

Datasheet - Applications

Figure AS8515 Block Diagram

ETS ETR hp_clk

VSUP

RSHH RSHL VSENSE VSENSE_IN VSENSE_GND

AS8515
10 Application Information 57 11 Package Drawings and 58 12 Ordering 61
4 - 62

AS8515

Datasheet - Pin Assignments
4 Pin Assignments

Figure Pin Assignments Top View

RSHH EN RESET Rx Tx CST INT

RSHL 1 VREF 2 VCM 3 AVDD 4 AVSS 5 ETR 6 ETS 7 VSENSE_IN 8

AS8515
24 CLK 23 SDI 22 MEN 21 CHOP_CLK 20 DVDD 19 DVSS 18 SDO 17 SCLK

VSENSE_GND LIN

VSS VSENSE VSUP

VCC CSB

Pin Descriptions

Table Pin Descriptions

Pin Name RSHL

Pin Number 1

VREF

AVDD 1

AVSS 2

Pin Type Analog input Analog output

Analog output

Analog input Power supply

Negative differential input for current channel

Internal reference voltage to Sigma Delta ADC Connect 100nF to AVSS from this pin. Common mode voltage to the internal measurement path Connect 100nF to AVSS from this pin. +3.3V Power-supply Supplied by LDO output VCC in Top die Should be shorted to pin 21 VCC externally.
0V Power-supply Ground analog
5 - 62

AS8515

Datasheet - Pin Assignments

Table Pin Descriptions Pin Name ETR ETS VSENSE_IN

VSENSE_GND LIN VSS 2

VSENSE

VSUP

VCC 1 CSB SCLK SDO DVSS2

DVDD 1

CHOP_CLK

SDI CLK

INT CST Tx Rx RESET EN RSHH

Pin Number 6 7 8 9 10 11
14 15 16 17 18 19
23 24 25 26 27 28 29 30 31 32
Updated Operating Conditions, Electrical Characteristics, Ordering Information, Figure Table 27, Table 29, Table 30, Table
60 - 62

AS8515
Datasheet - Ordering Information
12 Ordering Information

The devices are available as the standard products shown in Table
Table Ordering Information
Ordering Code AS8515-ZMFP AS8515-ZMFM

Description Data acquisition system with power management
and LIN transceiver

Delivery Form Tape & Reel 5000 pcs Tape & Reel 500 pcs

Package 32-pin MLF 5x5 mm

Note All products are RoHS compliant and ams green. Buy our products or get free samples online at ICdirect:

Technical Support is available at

For further information and requests, please contact us mailto or find your local distributor at
61 - 62

AS8515

Datasheet - Copyrights

Copyrights

Copyright 1997-2012, ams AG, Tobelbaderstrasse 30, 8141 Unterpremstaetten, Austria-Europe. Trademarks Registered All rights reserved. The material herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. All products and companies mentioned are trademarks or registered trademarks of their respective companies.

Disclaimer

Devices sold by ams AG are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. ams AG makes no warranty, express, statutory, implied, or by description regarding the information set forth herein or regarding the freedom of the described devices from patent infringement. ams AG reserves the right to change specifications and prices at any time and without notice. Therefore, prior to designing this product into a system, it is necessary to check with ams AG for current information. This product is intended for use in normal commercial applications. Applications requiring extended temperature range, unusual environmental requirements, or high reliability applications, such as military, medical life-support or life-sustaining equipment are specifically not recommended without additional processing by ams AG for each application. For shipments of less than 100 parts the manufacturing flow might show deviations from the standard production flow, such as test flow or test location. The information furnished here by ams AG is believed to be correct and accurate. However, ams AG shall not be liable to recipient or any third party for any damages, including but not limited to personal injury, property damage, loss of profits, loss of use, interruption of business or indirect, special, incidental or consequential damages, of any kind, in connection with or arising out of the furnishing, performance or use of the technical data herein. No obligation or liability to recipient or any third party shall arise or flow out of ams AG rendering of technical or other services.

Contact Information

Headquarters ams AG Tobelbaderstrasse 30 A-8141 Unterpremstaetten, Austria Tel +43 0 3136 500 0 Fax +43 0 3136 525 01

For Sales Offices, Distributors and Representatives, please visit:
62 - 62

More datasheets: B57703M0103A047 | PI74FCT373ATQE | PI74FCT373TQE | PI74FCT573ATS | PI74FCT573ATQ | WM075-1950-760 | WM144-1950-S | WM071-1950-D5 | WM063-1950-D5 | WM075-1950-D5

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AS8515-ZMFP Datasheet file may be downloaded here without warranties.

Datasheet ID: AS8515-ZMFP 519777