MP8845C – 5A HIGH EFFICIENT SYNC. STEP DOWN SWITCHER WITH I2C

MP8845C Rev. 1.02

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13

4/25/2014

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5. Reg04 ID2

NAME

BITS

DESCRIPTION

Reserved

D[7:4]

RESERVED

Die Rev

D[3:0]

Die revision

6. Reg05 Status

NAME

BITS

DESCRIPTION

ILIM

D7

When bit is high, IC is in current limit

UVLO

D6

When bit is high Vin is less than the UVLO threshold

OVP

D5

When bit is high Vin is greater than the OVP threshold

VoOV

D4

When bit is high a voltage higher than 110% of regulation voltage is presented.

VoUV

D3

When bit is high a voltage lower than 90% of regulation voltage is presented.

PGOOD

D2

When bit is high, the output is in regulation; otherwise the output voltage is out of +/-

10% regulation window.

OTW

D1

When junction temperature is higher than 130

En stat

D0

When bit is high the SMPS is enabled, when bit is low the SMPS is disabled.

Operation Status

CONIDTION

PG

REGULATION

LATCH-OFF

STATUS BIT

VIN Overvoltage

LOW

OFF

NO

OVP

VIN Under Voltage

LOW

OFF

N/A

UVLO

Thermal Warning

LOW

ON

NO

OTW

Thermal Shut Down

LOW

OFF

YES

N/A

Current Limit

HIGH

ON

NO

ILIM

Output Under voltage

LOW

OFF

YES

VoUV

Output Over Voltage (>110% of target output)

LOW

ON

NO

VoOV