SLDN-06D1AX datasheet(30/53 Pages) BEL

30 / 53 page

SLDN-06D1Ax

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The

SLDN-06D1Ax

module

can

provide

information

temperature

the

module

through

the

STATUS_TEMPERATURE command. The command returns information about whether the pre-set over temperature fault

threshold and/or the warning threshold have been exceeded.

Values within the supported range for over and undervoltage detection thresholds will be set to the nearest fixed

percentage. Note that the correct value for VOUT_SCALE_LOOP must be set in the module for the correct over or under

voltage trip points to be calculated.

In addition to adjustable output voltage protection, the 6A Digital module can also be programmed for the response to the

fault. The VOUT_OV_FAULT RESPONSE and VOUT_UV_FAULT_RESPONSE commands specify the response to the fault.

Both these commands use a single data byte with the possible options as shown below.

•

Continue operation without interruption (Bits [7:6] = 00, Bits [5:3] = xxx).

•

Continue for four switching cycles and then shut down if the fault is still present, followed by no restart or continuous

restart (Bits [7:6] = 01, Bits [5:3] = 000 means no restart, Bits [5:3] = 111 means continuous restart).

•

Immediate shut down followed by no restart or continuous restart (Bits [7:6] = 10, Bits [5:3] = 000 means no restart,

Bits [5:3] = 111 means continuous restart).

•

Module output is disabled when the fault is present and the output is enabled when the fault no longer exists (Bits

[7:6] = 11, Bits [5:3] = xxx).

Note: That separate response choices are possible for output over voltage or under voltage faults.

The SLDN-06D1Ax module allows adjustment of the input under voltage lockout and hysteresis. The command VIN_ON

allows setting the input voltage turn on threshold, while the VIN_OFF command sets the input voltage turn off threshold.

For the VIN_ON command, possible values are 2.75V, and 3V to 14V in 0.5V steps. For the VIN_OFF command, possible

values are 2.5V to 14V in 0.5V steps. If other values are entered for either command, they will be mapped to the closest of

the allowed values.

VIN_ON must be set higher than VINPOWER MANAGEMENT BUS _OFF. Attempting to write either VIN_ON lower than

VIN_OFF or VIN_OFF higher than VIN_ON results in the new value being rejected, SMBALERT being asserted along with

the CML bit in STATUS_BYTE and the invalid data bit in STATUS_CML.

Both the VIN_ON and VIN_OFF commands use the “Linear” format with two data bytes. The upper five bits represent the

exponent (fixed at -2) and the remaining 11 bits represent the mantissa. For the mantissa, the four most significant bits

are fixed at 0.

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(

)

(

)

(

)

(

−



LIMIT

FAULT

VOUT

LIMIT

FAULT

VOUT

REQ

OUT

REQ

OUT

SLDN-06D1AX Datasheet(PDF) 30 Page - Bel Fuse Inc.

SLDN-06D1AX Datasheet(HTML) 30 Page - Bel Fuse Inc.

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