ver. 2.8

12/01/12

23

ES51995(6000counts)

DMM Analog front end with PEAK

2.11 Sleep

Set CS pin (pin 80) to logic low to make the ES51995 entering the sleep mode. The current

consumption will be less than 3uA typically. Set CS pin to logic high or kept floating, the

ES51995 will return to normal operation.

2.12 Multi-level battery voltage indication

The ES51995 is built-in a comparator for batter voltage indication. The voltage is applied to

LBAT pin (pin 89) vs. V- terminal. MPU could check the status bit BTS1/BTS0 and monitor

the LBAT voltage status.

Battery voltage

BTS1

BST0

1

1

1

0

0

1

0

0

Low battery configuration for 9V/1.5V*4/1.5V*3 battery

Low battery test circuit (a)

360K

270K

BA

TT

LBAT

V-

AGND

0.1u

0V

6V

Low battery test circuit (b)

470K

180K

BA

TT

LBAT

V-

AGND

0.1u

0V

9V

Low battery test circuit (c)

360K

470K

BA

TT

LBAT

V-

AGND

0.1u

0V

4.5V