LT8722

24

Rev. 0

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BITS

SYMBOL

OPERATION

B[5]

OVER_CURRENT

Latched Output over current event status indicator bit. Default: 0x0

1b1: Output overcurrent event happened since last cleared

1b0: Output overcurrent event has not happened since last cleared

B[6]

TSD

Latched overtemperature event status indicator bit. Default: 0x0

1b1: Overtemperature event happened since last cleared

1b0: Overtemperature event has not happened since last cleared

B[7]

VCC_UVLO

B[8]

VDDIO_UVLO

B[9]

CP_UVLO

Latched charge pump power good failure event status indicator bit. Default: 0x0

1b1: Charge pump power good status failure event happened since last cleared

1b0: Charge pump power good status failure event has not happened since last cleared

B[10]

V2P5_UVLO

B[31:11]

–

Ignored

SPIS_DAC_ILIMN REGISTER

This register is used to set negative output current limit regulation level. LT8722 current is specified down to –4A.

BITS

SYMBOL

OPERATION

B[8:0]

SPIS_DAC_ILIMN[8:0] 9-bit DAC control register for negative output current limit. Default: 0x03FF

Format: Unsigned Integer

9b000110000 = -637.44 mA [Minimum Code]

9b000110001 = -637.44 mA – 13.28 mA

9b…..

9b111111111 = -6.786 A [Maximum Code]

B[31:9]

–

Ignored

SPIS_DAC_ILIMP Register

This register is used to set positive output current limit regulation level. LT8722 current is specified up to 4A.

BITS

SYMBOL

OPERATION

B[8:0]

SPIS_DAC_ILIMP[8:0] 9-bit DAC control register for positive output current limit. Default: 0x0000

Format: Unsigned Integer

9b000000000 = 6.8 A [Minimum Code]

9b000000001 = 6.8 A – 13.28 mA

9b…..

9b111001110 = 637.44 mA [Maximum Code]

B[31:9]

–

Ignored

SPI REGISTER DESCRIPTIONS