Rainbow-electronics DS2784 Bedienungsanleitung PDF herunterladen (Seite 8)

DS2784: 1-Cell Stand-Alone Fuel Gauge IC with Li+ Protector and SHA-1 Authentication

PMOD = 0

UVEN = 0

PMOD = 1

UVEN = 1

PMOD = 1

UVEN = 0

PMOD = 0

UVEN = 1

PSIO = 1

PSDQ = 1

PSIO = 1

PSDQ = 0

PSIO = 0

PSDQ = 1

PSIO = 0

PSDQ = 0

Vin < V

DQ low for t

SLEEP

DQ low for t

SLEEP

I/O Communication or

Charger Connection

I/O Communication or

Charger Connection

Pull DQ Low

Pull PIO Low

Pull PIO low

Pull DQ low

I/O Communication or

Charger Connection

I/O Communication or

Charger Connection

CONTROL REGISTER FORMAT

All control register bits are read and write accessible. The control register is recalled from parameter EEPROM

memory at power-up. Register bit values can be modified in shadow RAM after power-up. Power-up default values

are saved using the Copy Data command.

ADDRESS 60h

BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

NBEN UVEN PMOD RNAOP 0 PSPIO PSDQ X

NBEN—Negative Blanking Enable. A value of 1 enables blanking of negative current values up to 25μV. A value of

0 disables blanking of negative currents. The power-up default of NBEN = 0.

UVEN—Undervoltage Enable. A value of 1 allows the DS2784 to enter Sleep mode when the voltage register value

is less than V

and DQ is stable at either logic level for t

SLEEP

. A value of 0 disables transitions to Sleep mode in an

undervoltage condition.

8 of 38

PMOD—Power Mode Enable. A value of 1 allows the DS2784 to enter Sleep mode when DQ is low for t

SLEEP

. A

value of 0 disables DQ related transitions to Sleep mode.

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 37 38

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