BAS Series Battery Safety Aerosol Sensors Datasheet | sps.honeywell.com/ast |

3

BATTERY SAFETY AEROSOL SENSORS

BAS SERIES

Figure 2. Interface Circuits

Wake-up

Request

VIN

GND

S

G

D

GND

GND

WAKEUP

0.1 uF

WAKEUP_O

10 kOhm

10 kOhm

100 kOhm

100 kOhm

10 kOhm

100 kOhm

0.1 uF

To BMS

BAS Series Sensor

51 kOhm

REQUEST IN

51 kOhm

GND

GND

1 kOhm

0.1 uF

100 kOhm

S

G

D

+5 V

BMS_R

From BMS

BAS Series Sensor

G

D

Figure 1. Operating Modes

ECO Mode

Continuous Mode

Wake-up

CAN

Request

from BMS

OFF

OFF

ON

ECO

ECOContinuous

Wake-up

Working

mode

CAN

Request

from BMS

OFF

OFF

ON

ECO

ECO

Continuous

<2 s

<15 ms to confirm

Request Pin level

<15 ms to confirm

Request Pin level

BMS finds nothing

abnormal and sets

Request Pin at low level

Determined by BMS (customer)

1 s to confirm

aerosol intensity

Working

mode

Wake-up

CAN

Request

from BMS

OFF

OFF

ON

ECO

ECOContinuous

Wake-up

Working

mode

CAN

Request

from BMS

OFF

OFF

ON

ECO

ECO

Continuous

<2 s

<15 ms to confirm

Request Pin level

<15 ms to confirm

Request Pin level

BMS finds nothing

abnormal and sets

Request Pin at low level

Determined by BMS (customer)

1 s to confirm

aerosol intensity

Working

mode

TABLE 5. WAKE-UP SIGNAL

Parameter

Min.

Typ.

Max.

Unit

High level

voltage

8

12

16

Vdc

Low level

voltage

—

—

0.5

Vdc

Output

capability

6

12

18

mA

TABLE 6. REQUEST SIGNAL

Parameter

Min.

Typ.

Max.

Unit

High level

voltage

8

12

16

Vdc

Low level

voltage

—

—

0.5

Vdc