ZL8802 datasheet(86/91 Pages) RENESAS

86 / 91 page

ZL8802

FN8760 Rev.3.00

Page 86 of 91

Nov 8, 2017

MFR_READ_VMON (F7h)

Definition: Reads the voltage on the VMON pin.

Paged or Global: Global

Data Length in Bytes: 2

Data Format: Linear-11

Type: R/W

Protectable: No

Default Value: N/A

Units: °C

Equation: MFR_READ_VMON = Y x 2N

Range: -200°C to +200°C

VMON_OV_FAULT_RESPONSE (F8h)

Definition: Configures the VMON overvoltage fault response as defined by the table below. Note: The retry time is the time between

restart attempts. If VMON is not used, set this response to 00h, which will disable VMON OV faults entirely.

Paged or Global: Global

Data Length in Bytes: 1

Data Format: Bit Field

Type: R/W

Protectable: Yes

Default Value: BFh (continuous retries)

Units: N/A

COMMAND

MFR_READ_VMON (F7h)

Format

Linear-11

Bit Position

987

Access

R/W

Function

Signed Exponent, N

Signed Mantissa, Y

Default Value

N/A

COMMAND

VMON_OV_FAULT_RESPONSE (F8h)

Format

Bit Field

Bit Position

4321

Access

R/WR/W

Function

See Following Table

Default Value

1111

BIT

FIELD NAME

VALUE

DESCRIPTION

7:6

Response behavior, the device:

• Pulls SALRT low

• Sets the related fault bit in the status

registers. Fault bits are only cleared by the

CLEAR_FAULTS command.

Ignore faults

Not used

Disable without delay and retry according to the setting in bits 5:3.

Output is disabled while the fault is present. Operation resumes and the output is enabled

when VMON falls below 95% of the VMON_OV_FAULT_LIMIT setting.

5:3

Retry Setting

000

No retry. The output remains disabled until the fault is cleared.

001-110 Not used

111

Attempts to restart continuously, without checking if the fault is still present, until it is

commanded OFF (by the CONTROL pin or OPERATION command or both), bias power is

removed, or another fault condition causes the unit to shut down. A retry is attempted after

VMON falls below 95% of the VMON_OV_FAULT_LIMIT. The time between the start of each

attempt to restart is set by the value in bits [2:0] multiplied by 35ms.

2:0

Retry Delay

000-111

Retry delay time = (Value +1)*35ms. Sets the time between retries in 35ms increments.

Range is 35ms to 280ms.

ZL8802 Datasheet(PDF) 86 Page - Renesas Technology Corp

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