AS8515 datasheet(20/65 Pages) AMSCO

Teilenummer	AS8515

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

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Hersteller	AMSCO [ams AG]

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Revision 0.7

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AS8515

Datasheet - AS8515 To p Die Overview

7.15 MODE Input EN

The AS8515

Top die is switched from normal mode to the standby mode with a falling edge on EN and keeping Tx high for TSTNDY_trigger time.

Device is switched from standby mode to normal mode with a rising edge at the EN pin. The mode change for

Top die with a falling edge on EN

can be done independently from the state of the transceiver bus. This ensures the direct control of device to enter into standby mode by

microcontroller using EN pin.

Figure 12. EN Pin Functionality

The EN input has an internal active pull down to secure that if this pin is not connected, a low level will be generated.

Figure 13. Enable Interface

If the application doesn’t need the low-power modes of the device, a direct connection of EN to VCC is possible. In this case the

Top die

operates in permanent normal mode. Also possible is the external (outside of the module) control of the EN line via VSUP signal as shown

below.

Normal Mode

Normal

Mode

Standby/Sleep

Mode

Ttx_su

Ttx_hd

TSTNDY_trigger

VCC

RESET

VSUP

LIN

VSS

MCU

+3.3V

CLOAD

VBAT

CIN

VSENSE

AS8515 Datenblatt(PDF) 20 Page - ams AG